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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2008

OR

For the transition period from                     to                    

Commission file number 000-31293

EQUINIX, INC.

(Exact name of registrant as specified in its charter)

301 Velocity Way, Fifth Floor, Foster City, California 94404

(Address of principal executive offices, including ZIP code)

(650) 513-7000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer as defined in Rule 405 of the Act.    x  Yes    ¨  No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    ¨  Yes    x  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    ¨  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ¨  Yes    x  No

The aggregate market value of the voting and non-voting common stock held by non-affiliates computed by reference to the price at which the common stock was last sold as of the last business day of the registrant’s most recently completed second fiscal quarter was approximately $2.9 billion.

As of January 31, 2009, a total of 37,769,926 shares of the registrant’s common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Part III—Portions of the registrant’s definitive proxy statement to be issued in conjunction with the registrant’s 2009 Annual Meeting of Stockholders, which is expected to be filed not later than 120 days after the registrant’s fiscal year ended December 31, 2008. Except as expressly incorporated by reference, the registrant’s proxy statement shall not be deemed to be a part of this report on Form 10-K.

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EQUINIX, INC.

FORM 10-K

DECEMBER 31, 2008

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PART I

The words “Equinix”, “we”, “our”, “ours”, “us” and the “Company” refer to Equinix, Inc. All statements in this discussion that are not historical are forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, including statements regarding Equinix’s “expectations”, “beliefs”, “hopes”, “intentions”, “strategies” or the like. Such statements are based on management’s current expectations and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. Equinix cautions investors that there can be no assurance that actual results or business conditions will not differ materially from those projected or suggested in such forward-looking statements as a result of various factors, including, but not limited to, the risk factors discussed in this Annual Report on Form 10-K. Equinix expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in Equinix’s expectations with regard thereto or any change in events, conditions, or circumstances on which any such statements are based.

Overview

Equinix provides global data center services. Global enterprises, content providers, financial companies and network service providers rely upon Equinix’s insight and expertise to protect and connect their most valued information assets. We operate 42 International Business Exchange (IBX) data centers, or IBX centers, across 18 markets in North America, Europe and Asia-Pacific where customers directly interconnect with a network ecosystem of partners and customers. More than 300 network service providers offer access to more than 90% of the world’s Internet routes inside Equinix’s IBX centers. This access to Internet routes provides Equinix customers improved reliability and streamlined connectivity while significantly reducing costs by reaching a critical mass of networks within a centralized physical location.

As the world becomes increasingly more information-driven, businesses choose Equinix for the delivery of high levels of operational availability and the leading insight of Equinix’s expert staff. Based on our network-neutral model and the quality of our IBX centers, Equinix has established a critical mass of customers which continues to drive new and existing customer growth and bookings. A supply and demand imbalance in the data center market has contributed to Equinix’s revenue growth. In addition, as a result of a largely fixed cost model, any growth in revenue would likely drive incremental margins and increased operating cash flow; however, the costs of a new IBX center at initial opening has a negative effect on earnings until it generates sufficient revenues to cover these costs.

Equinix’s network-neutral business model also differentiates us in the market. Because we do not operate a network, Equinix is able to offer customers direct interconnection to an aggregation of bandwidth providers, including the world’s top carriers, Internet Service Providers (ISPs), broadband access networks (DSL/cable) and international carriers. AOL, at&t, British Telecom, Cable & Wireless, Comcast, Level 3, NTT, Qwest, SingTel, Sprint and Verizon Business are all currently located within our IBX centers. Access to such a wide variety of networks has attracted a variety of customers in various business sectors, including:

Equinix services are primarily comprised of colocation, interconnection and managed IT infrastructure services.

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The market for Equinix’s services has historically been served by large telecommunications carriers which have bundled their telecommunications and managed services with their colocation offerings. Over the past several years, a number of these telecommunications carriers have eliminated or reduced their colocation footprint to focus on their core businesses. Additionally, many of the competitive providers have failed to scale their businesses and have been forced to exit the market. While some Equinix customers, such as AOL, Google and MSN, build and operate their own data centers for their large infrastructure deployments, these customers rely upon Equinix IBX centers for their critical interconnection relationships.

The need for large, wholesale outsourced data centers is also, more recently, being addressed by real estate investment trusts (REITs) that build large data centers to meet customers’ needs for standalone centers, a different customer segment than Equinix serves. However, with the diminished role of the telecommunications players in the market and the increasing cost and complexity of the power and cooling requirements of today’s data center equipment, there continues to be a supply and demand imbalance in the market. Demand continues to outpace supply as a result of the current credit contraction, which is creating a financial strain on many data center operators, limiting their ability to create new supply. Equinix continues to fund its own expansion program, while other data center operators slow or halt their data center builds altogether.

The supply and demand imbalance in the industry has, to date, created a favorable pricing environment for Equinix, as well as an opportunity to increase market share. Equinix has gained many customers that have outgrown their existing data centers or that have realized the benefits of a network-neutral model. Strategically, we will continue to look at attractive opportunities to grow market share and selectively expand our footprint and service offerings. We continue to leverage our global reach and depth to differentiate based upon our ability to support truly global customer requirements in all our markets.

Several factors are contributing to this growth, including:

Industry Background

The Internet is a collection of numerous independent networks interconnected with each other to form a network of networks. Users on different networks are able to communicate with each other through interconnection services between these networks. For example, when a person sends an email to someone that

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uses a different provider for their connectivity (e.g., Comcast versus Earthlink), the email must pass from one network to the other in order to get to its final destination. Equinix provides the physical point at which that interconnection occurs.

In order to accommodate the rapid growth of Internet traffic, an organized approach for network interconnection was needed. The exchange of traffic between these networks became known as peering. Peering is when networks trade traffic at relatively equal amounts and set up agreements to trade traffic often at no charge to the other party. At first, government and non-profit organizations established places where these networks could exchange traffic, or peer, with each other—these points were known as network access points, or NAPs. Over time, many NAPs became a natural extension of carrier services and were run by such companies as MFS (now a part of Verizon Business), Sprint, Ameritech and Pacific Bell (both now known as at&t).

Ultimately, these NAPs were unable to scale with the growth of the Internet and the lack of “neutrality” by the carrier owners of these NAPs created a conflict of interest with the participants. This created a market need for network-neutral interconnection points that could accommodate the rapidly growing need to increase performance for enterprise and consumer users of the Internet, especially with the rise of important content providers such as AOL, Google, Microsoft, Yahoo! and others. In addition, the providers, as well as a growing number of enterprises, required a more secure and reliable solution for direct connection to a variety of telecommunications networks as the importance of their Internet operations continued to grow.

To accommodate Internet traffic growth, the largest of these networks left the NAPs and began trading traffic by placing private circuits between each other. Peering, which once occurred at the NAP locations, was moved to these private circuits. Over the years, these circuits became expensive to expand and could not be built fast enough to accommodate the growth in traffic. This led to a need by the large carriers to find a more efficient way to exchange network traffic or peer. Customers have chosen Equinix for peering because they are now able to peer with the networks they require within one location using simple direct connections. Their ability to peer across the room, instead of across a metro area, has increased the scalability of their operations while decreasing costs for some customers by upwards of 70%.

Equinix Value Proposition

More than 2,000 companies, including a diversified mix of content providers, financial companies, global enterprises and network service providers currently operate at Equinix. These companies derive specific value from the following elements of the Equinix service offering:

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Our Strategy

Our objective is to expand our global leadership position as the premier data center operator for content providers, financial companies and global enterprises seeking protection and connection of their most valued information assets. Key components of our strategy include the following:

Continue to build upon our critical mass of network providers and content companies and grow our position within the enterprise and financial sectors. We have assembled a critical mass of premier network providers and content companies and have become one of the core hubs of the information-driven world. This critical mass is a key selling point for companies that want to connect with a diverse set of networks to provide the best connectivity to their end-customers and network companies that want to sell bandwidth to companies and interconnect with other networks in the most efficient manner available. Currently, we service over 300 unique networks, including all of the top tier networks, allowing our customers to directly interconnect with providers that serve more than 90% of global Internet routes. We have a growing mass of key players in the enterprise and financial sectors, such as Bank of America, The Gap, Gannett, IBM, Salesforce.com, Sony and others. We expect the success we have experienced in the content provider and financial segments to continue to drive our growth in 2009 and beyond.

Promote our IBX centers as the most reliable data centers in the industry. Data center reliability, power availability and network choice are the most important attributes considered by our customers when they are choosing a data center provider. Our IBX centers are next-generation data centers and offer customers advanced security, reliability and redundancy. Our security design in the U.S. IBX centers includes five levels of biometrics security to access customer cages. Our power infrastructure in the U.S. includes N+1 redundancy for all systems and has delivered 99.999% uptime over the period from January 1, 2002 through December 31, 2008. We provide access to over 300 different network providers. Our support staff, trained to aid customers with operational support, is available 24 hours a day, 365 days a year.

Leverage the network ecosystem. As networks, content providers and other enterprises locate in our IBX centers, it benefits their suppliers and business partners to do so as well to gain the full economic and performance benefits of direct interconnection. These partners, in turn, pull in their business partners, creating a “network effect” of customer adoption. Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange thus lowering overall cost and increasing flexibility. The ability to directly interconnect with a wide variety of companies is a key differentiator for us in the market.

Provide new products and services within our IBX centers. We plan to continue to offer additional products and services that are most valuable to our customers as they manage their Internet and network businesses and, specifically, as they attempt to effectively utilize multiple networks. Examples include our IBXLink services, which allow customers to easily move traffic between IBX centers located in the same metro area, or the Financial Exchange service, which allows direct interconnection with electronic financial exchanges, such as the Chicago Mercantile Exchange, NASDAQ and ICAP in markets such as Chicago, Frankfurt, London, New York and Paris.

Pursue continuous growth for our customers. We continue to evaluate expansion opportunities in select markets based on customer demand. We expect to open new IBX centers, or IBX center expansions, in nine of our 18 markets in 2009. These efforts, and excluding the capacity added from our recent entry into Europe, have more than doubled our sellable cabinet capacity since 2003.

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Our strategy is to continue to grow in select existing markets and possibly expand to additional markets where demand and financial return potential warrant. We expect to execute this expansion strategy in a cost-effective and prudent manner through a combination of acquiring existing data centers through lease or purchase, or building new IBX centers based on key criteria, such as demand and potential financial return, in each market.

Our Customers

Our customers include carriers and other bandwidth providers, content providers, financial companies and global enterprises. We offer each customer a choice of business partners and solutions based on their colocation, interconnection and managed IT service needs. As of December 31, 2008, we had 2,272 customers worldwide (2,757 including the recently acquired customers in the Netherlands).

Typical customers in our four key customer categories include the following:

Customers typically sign renewable contracts of one or more years in length. No single customer accounted for 10% or greater of our revenues for the years ended December 31, 2008, 2007 or 2006.

Our Services

Our services are primarily comprised of colocation, interconnection and managed IT infrastructure services.

Colocation Services

Our IBX centers provide our customers with secure, reliable and fault-tolerant environments that are necessary for optimum Internet commerce interconnection. Our IBX centers include multiple layers of physical security, scalable cabinet space availability, on-site trained staff 24 hours per day, 365 days a year, dedicated areas for customer care and equipment staging, redundant AC/DC power systems and multiple other redundant and fault-tolerant infrastructure systems. Some specifications or services provided may differ in our Asia-Pacific and European locations in order to properly meet the local needs of customers in these markets.

Within our IBX centers, customers can place their equipment and interconnect with a choice of networks or other business partners. We also provide customized solutions for customers looking to package our IBX services as part of their complex solutions. Our colocation products and services include:

Cabinets. Our customers have several choices for colocating their networking, server and storage equipment. They can place the equipment in one of our shared or private cages or customize their space. In Europe, customers can purchase their own private “suite” which is walled off from the rest of the data center. As a customer’s colocation requirements increase, they can expand within their original cage (or suite) or upgrade into a cage that meets their expanded requirements. Customers buy the hardware they place in our IBX centers directly from their chosen vendors. Cabinets (or suites) are priced with an initial installation fee and an ongoing recurring monthly charge.

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Power. Power is an element of increasing importance in customers’ colocation decisions. We offer both AC and DC power circuits at various amperages and phases customized to a customer’s individual power requirements. Power is priced with an initial installation fee and an ongoing recurring monthly charge.

IBXflex. IBXflex allows customers to deploy mission-critical operations personnel and equipment on-site at our IBX centers. Because of the close proximity to their infrastructure within our IBX centers, IBXflex customers can offer a faster response and quicker troubleshooting solution than those available in traditional colocation facilities. This space can also be used as a secure disaster recovery point for customers’ business and operations personnel. This service is priced with an initial installation fee and an ongoing recurring monthly charge.

Interconnection Services

Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange between Equinix customers. These interconnection services are either on a one-to-one basis with direct cross connects or one-to-many through one of our Equinix Exchange services. In the peering community, we provide an important industry leadership role by acting as the relationship broker between parties who would like to interconnect within our IBX centers. Our staff holds significant positions in the leading industry groups such as the North American Network Operators’ Group, or NANOG, and the Internet Engineering Task Force, or IETF. Members of our staff have published industry-recognized white papers and strategy documents in the areas of peering and interconnection, many of which are used by other institutions worldwide in furthering the education and promotion of this important set of services. We will continue to develop additional services in the area of traffic exchange that will allow our customers to leverage the critical mass of networks now available in our IBX centers. Our current exchange services are comprised of the following:

Physical Cross-Connect/Direct Interconnections. Customers needing to directly and privately connect to another IBX center customer can do so through single or multi-mode fiber. These cross connections are the physical link between customers and can be implemented within 24 hours of request. Cross-connect services are priced with an initial installation fee and an ongoing monthly recurring charge.

Equinix Exchange. Customers may choose to connect to and peer through our Equinix Exchange via a central switching fabric rather than purchase a direct physical cross connection. With a connection to this switch, a customer can aggregate multiple interconnects over one physical connection with up to 10 gigabits of capacity instead of purchasing individual physical cross connects. The Exchange service is offered as a bundled service that includes a cabinet, power, cross connects and port charges. The service is priced by IBX center with an initial installation fee and an ongoing monthly recurring charge. Individual IBX center prices increase as the number of participants on the exchange service grows.

Equinix IBXLink. Customers who are located in one IBX center may need to interconnect with networks or other customers located in an adjacent or nearby IBX center in the same metro area. IBXLink allows customers to seamlessly interconnect between IBX centers at capacities up to an OC-192, or 10 gigabits per second level. IBXLink services are priced with an initial installation fee and an ongoing monthly recurring charge dependent on the capacity the customer purchases.

Internet Connectivity Services. Customers who are installing equipment in our IBX centers generally require IP connectivity or bandwidth services. Although many large customers prefer to contract directly with carriers, we offer customers the ability to contract for these services through us from any of the major bandwidth providers in that center. This service, which is provided in our Asia-Pacific region, is targeted to customers who require a single bill and a single point of support for their entire services contract through Equinix for their bandwidth needs. Internet connectivity services are priced with an initial installation fee and an ongoing monthly recurring charge based on the amount of bandwidth committed.

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Managed IT Infrastructure Services

With the continued growth in Internet use, networks, service providers, enterprises and content providers are challenged to deliver fast and reliable service, while lowering costs. With over 300 Internet Service Providers (ISPs) and carriers located in our IBX centers, we leverage the value of network choice with our set of multi-network management and other outsourced IT services.

Professional Services. Our IBX centers are staffed with Internet and telecommunications specialists who are on-site and/or available 24 hours a day, 365 days a year. These professionals are trained to perform installations of customer equipment and cabling. Professional services are custom-priced depending on customer requirements.

Smart Hands Services. Our customers can take advantage of our professional “Smart Hands” service, which gives customers access to our IBX center staff for a variety of tasks, when their own staff is not on site. These tasks may include equipment rebooting, power cycling, card swapping and performing emergency equipment replacement. Services are available on-demand or by customer contract and are priced on an hourly basis.

Equinix Direct. Equinix Direct is a managed multi-homing service that allows customers to easily provision and manage multiple network connections over a single interface. Customers can choose branded networks on a monthly basis with no minimums or long-term commitments. This service is priced with an initial installation fee and ongoing monthly recurring charges, depending on the bandwidth used by the customer.

Sales and Marketing

Sales. We use a direct sales force and channel marketing program to market our services to global enterprises, content providers, financial companies and network service providers. We organize our sales force by customer type as well as by establishing a sales presence in diverse geographic regions, which enables efficient servicing of the customer base from a network of regional offices. In addition to our worldwide headquarters located in Silicon Valley, we have established an Asia-Pacific regional headquarters in Hong Kong, and a European regional headquarters in London. Our U.S. sales offices are located in Boston, Chicago, Los Angeles, New York, Reston, Virginia and Silicon Valley. Our Asia-Pacific sales offices are located in Hong Kong, Singapore, Sydney and Tokyo. Our European sales offices are located in Amsterdam, Dusseldorf, Frankfurt, Geneva, London, Munich, Paris and Zurich.

Our sales team works closely with each customer to foster the natural network effect of our IBX model, resulting in access to a wider potential customer base via our existing customers. As a result of the IBX interconnection model, IBX center participants encourage their customers, suppliers and business partners to also locate in our IBX centers. These customers, suppliers and business partners, in turn, encourage their business partners to locate in our IBX centers resulting in additional customer growth. This network effect significantly reduces our new customer acquisition costs. In addition, large network providers or managed service providers may refer customers to Equinix as a part of their total customer solution.

Marketing. To support our sales effort and to actively promote our brand in the U.S., Asia-Pacific and Europe, we conduct comprehensive marketing programs. Our marketing strategies include an active public relations campaign and ongoing customer communications programs. Our marketing efforts are focused on major business and trade publications, online media outlets, industry events and sponsored activities. Our staff holds leadership positions in key networking organizations and we participate in a variety of Internet, computer and financial industry conferences, placing our officers and employees in keynote speaking engagements at these conferences. We also regularly measure customer satisfaction levels and host key customer forums to ensure customer needs are understood and incorporated in product and service planning efforts. From a brand perspective, we build recognition through sponsoring or leading industry technical forums and participating in Internet industry standard-setting bodies. We continue to develop and host industry educational forums focused on peering technologies and practices for ISPs and content providers.

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Our Competition

Our current and potential competition includes:

Unlike other providers whose core businesses are bandwidth or managed services, we focus on neutral interconnection hubs for content providers, financial companies and global enterprises. As a result, we are free of the channel conflict common at other hosting/colocation companies. We compete based on the quality of our IBX centers, our ability to provide a one-stop solution in our U.S., European and Asia-Pacific locations, the performance and diversity of our network-neutral strategy and the economic benefits of the aggregation of top networks and Internet businesses under one roof. Specifically, we have established relationships with a number of leading hosting companies such as IBM (our largest customer) and others. We expect the industry to continue

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to benefit from several industry trends including the consolidation of supply in the colocation market, the need for contracting with multiple networks due to the uncertainty in the telecommunications market, customers’ increasing power requirements, enterprise customers’ growth in outsourcing and the continued growth of broadband.

Our Business Segment Financial Information

We currently operate in three reportable segments, comprised of our U.S., Europe and Asia-Pacific geographic regions. Information attributable to each of our reportable segments is set forth in Note 16 of Notes to Consolidated Financial Statements in Item 8 of this Annual Report on Form 10-K.

Employees

As of December 31, 2008, we had 1,115 employees. We had 646 employees based in the U.S., 279 employees based in Europe and 190 employees based in Asia-Pacific. Of those employees, 508 were in engineering and operations, 179 were in sales and marketing and 428 were in management, finance and administration.

Available Information

We were incorporated in Delaware in June 1998. We are required to file reports under the Securities Exchange Act of 1934, as amended, with the Securities and Exchange Commission. You may read and copy our materials on file with the SEC at the SEC’s Public Reference Room at 100 F Street, NE, Washington, DC 20549. You may obtain information regarding the SEC’s Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains an Internet website at http://www.sec.gov that contains reports, proxy and information statements and other information.

You may also obtain copies of our annual report on Form 10-K, our quarterly reports on Form 10-Q and our current reports on Form 8-K, and any amendments to such reports, free of charge by visiting the investor relations page on our website, www.equinix.com. These reports are available as soon as reasonably practical after we file them with the SEC. Information contained on our website is not part of this annual report on Form 10-K.

In addition to the other information contained in this report, the following risk factors should be considered carefully in evaluating our business and us:

Our substantial debt could adversely affect our cash flows and limit our flexibility to raise additional capital.

We have a significant amount of debt. As of December 31, 2008, our total indebtedness was approximately $1.2 billion, our stockholders’ equity was $892.7 million and our cash and investments totaled $307.9 million.

Our substantial amount of debt could have important consequences. For example, it could:

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The occurrence of any of the foregoing factors could have a material adverse effect on our business, results of operations and financial condition. In addition, the performance of our stock price may trigger events that would require the write-off of a significant portion of our debt issuance costs related to our convertible debt, which may have a material adverse effect on our results of operations and financial condition.

In addition, of our total indebtedness as of December 31, 2008, $576.0 million was non-convertible senior debt (of which $251.7 million is with a single lender). Although these are committed facilities, virtually all of which are fully drawn or advanced for which we are amortizing debt repayments of either principal and/or interest only, and we are in full compliance with all covenants related to them effective December 31, 2008 (we amended certain provisions in connection with one of our financings related to certain financial covenants effective December 31, 2008), deteriorating market and liquidity conditions may give rise to issues which may impact the lenders’ ability to hold these debt commitments to their full term. Accordingly, these lenders of committed and drawn facilities may attempt to call this debt which would have a material adverse effect on our liquidity, even though no call provisions exist without being in default.

We may also need to refinance a portion of our outstanding debt as it matures. There is a risk that we may not be able to refinance existing debt or that the terms of any refinancing may not be as favorable as the terms of our existing debt. Furthermore, if prevailing interest rates or other factors at the time of refinancing result in higher interest rates upon refinancing, then the interest expense relating to that refinanced indebtedness would increase. These risks could adversely affect our financial condition, cash flows and results of operations.

If we are not able to generate sufficient operating cash flows or obtain external financing, our ability to fund incremental expansion plans may be limited.

Our capital expenditures, together with ongoing operating expenses and obligations to service our debt, will be a substantial drain on our cash flow and may decrease our cash balances. The capital markets are currently limited for external financing opportunities. Additional debt or equity financing, especially in the current credit-constrained climate, may not be available when needed or, if available, may not be available on satisfactory terms. Our inability to obtain needed debt and/or equity financing or to generate sufficient cash from operations may require us to prioritize projects or curtail capital expenditures which could adversely affect our results of operations.

The global financial crisis may have an impact on our business and financial condition in ways that we currently cannot predict.

The continued credit crisis and related turmoil in the global financial markets has had and may continue to have an impact on our business and our financial condition. For example, we are currently unable to access cash invested with the Reserve Primary Fund, a prime obligations money market fund that has suspended redemptions and is being liquidated. While the Company received periodic distributions from the Reserve in October and December of 2008, the Reserve continues to hold a portion of our investment balance. We had invested approximately $50.9 million in this fund, wrote-off $1.5 million and have received redemptions of approximately $40.2 million. The remaining balance still held at the Reserve had a fair value of approximately $9.2 million as of December 31, 2008. In February 2009, we received an additional distribution of $3.4 million from the Reserve. While we expect to receive substantially all of our remaining holdings in this fund within the next six

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months, we cannot predict when this will occur or the amount we will receive. Further, a number of litigation claims have been filed against the Reserve’s management which could potentially delay the timing and amount of the final distributions of the fund. If the litigation were to continue for an extended period of time it is possible that the Reserve management’s cost of defending these claims could also reduce the final amount of distribution to us. We do not believe that the current liquidity issues related to this fund will impact our ongoing business operations. However, if the current market conditions continue to deteriorate, we may suffer further losses on our investment portfolio, which could have a material adverse effect on our liquidity.

The global financial crisis could have a material adverse effect on our liquidity in other ways. Customer collections are our primary source of cash. While we believe we have a strong customer base and have experienced strong collections in the past, if the current market conditions continue to deteriorate some of our customers may begin to have difficulty paying us and we may experience increased churn in our customer base, including reductions in their commitments to us. For example, we have a number of large customers in the financial services sector which has been significantly impacted by the downturn. We may also be required to increase our allowance for doubtful accounts and our results would be negatively impacted. Our sales cycle could also be lengthened as customers slow spending, or delay decision-making, on our products and services, which could adversely affect our revenue growth. Finally, we could also experience pricing pressure as a result of economic conditions if our competitors lower prices and attempt to lure away our customers with lower cost solutions.

The credit crisis could also have an impact on our foreign exchange forward contract and interest rate swap hedging contracts if our counterparties are forced to file for bankruptcy or are otherwise unable to perform their obligations.

Finally, our ability to access the capital markets may be severely restricted at a time when we would like, or need, to do so, which could have an impact on our flexibility to pursue additional expansion opportunities and maintain our desired level of revenue growth in the future.

We are exposed to fluctuations in the market values of our portfolio investments and in interest rates; impairment of our investments could harm our results of operations.

We maintain an investment portfolio of various holdings, types and maturities, including money market funds and other short-term and long-term securities. These securities are classified as available-for-sale and, consequently, are recorded on our consolidated balance sheets at fair value with unrealized gains or losses as a separate component of accumulated other comprehensive income or loss. Our portfolio includes fixed income securities, the values of which are subject to market price volatility and changes in interest rates. If the market price declines, we may recognize in our statements of operations the decline in fair value of our investments below the cost basis when the decline is judged to be other-than-temporary. For information regarding the sensitivity of and risks associated with the market value of our portfolio and interest rates, refer to our discussion of our investment portfolio and interest rate risks in “Quantitative and Qualitative Disclosures About Market Risk” included in Part II, Item 7A of this Annual Report on Form 10-K.

Fluctuations in foreign currency exchange rates in the markets in which we operate internationally could harm our results of operations.

We may experience gains and losses resulting from fluctuations in foreign currency exchange rates. To date, the majority of our revenues and costs have been denominated in U.S. dollars; however, the majority of revenues and costs in our international operations have been denominated in foreign currencies. Where our prices are denominated in U.S. dollars, our sales could be adversely affected by declines in foreign currencies relative to the U.S. dollar, thereby making our products and services more expensive in local currencies. We are also exposed to risks resulting from fluctuations in foreign currency exchange rates in connection with our international expansions. To the extent we are paying contractors in foreign currencies, our expansions could cost more than

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anticipated from declines in the U.S dollar relative to foreign currencies. In addition, fluctuating foreign currency exchange rates have a direct impact on how our international results of operations translate into U.S. dollars.

Although we have in the past, and may decide in the future, to undertake foreign exchange hedging transactions to reduce foreign currency transaction exposure, we do not currently intend to eliminate all foreign currency transaction exposure. For example, while we hedge certain of our foreign currency assets and liabilities on our balance sheet, we do not hedge revenue. During fiscal 2007 and the first half of 2008, the U.S. dollar had been generally weaker relative to the currencies of the foreign countries in which we operate. This overall weakness of the U.S. dollar had a positive impact on our consolidated results of operations because the foreign denominations translated into more U.S. dollars. However, during the second half of 2008, the U.S. dollar strengthened relative to certain of the currencies of the foreign countries in which we operate. This significantly impacted our consolidated financial position and results of operations as amounts in foreign currencies are generally translating into less U.S. dollars. Further strengthening of the U.S. dollar would continue to have a significant impact on our consolidated financial position and results of operations including the amount of revenue that we report in future periods. For additional information on foreign currency risk, refer to our discussion of foreign currency risk in “Quantitative and Qualitative Disclosures About Market Risk” included in Part II, Item 7A of this Annual Report on Form 10-K.

Our products and services have a long sales cycle that may harm our revenues and operating results.

A customer’s decision to license cabinet space in one of our IBX centers and to purchase additional services typically involves a significant commitment of resources. In addition, some customers will be reluctant to commit to locating in our IBX centers until they are confident that the IBX center has adequate carrier connections. As a result, we have a long sales cycle. Furthermore, we may expend significant time and resources in pursuing a particular sale or customer that does not result in revenue.

The current economic downturn may further impact this long sales cycle by making it extremely difficult for customers to accurately forecast and plan future business activities. This could cause customers to slow spending, or delay decision-making, on our products and services, which would delay and lengthen our sales cycle.

Delays due to the length of our sales cycle may materially and adversely affect our revenues and operating results, which could harm our ability to meet our forecasts for a given quarter and cause volatility in our stock price.

We have incurred substantial losses in the past and may incur additional losses in the future.

As of December 31, 2008 our accumulated deficit was $427.1 million. Although we generated net income during 2008, our first full year of net income since our inception, we are also currently investing heavily in our future growth through the build-out of several additional IBX centers and IBX center expansions. As a result, we will incur higher depreciation and other operating expenses, as well as interest expense, that may negatively impact our ability to sustain profitability in future periods unless and until these new IBX centers generate enough revenue to exceed their operating costs and cover our additional overhead needed to scale our business for this anticipated growth. The current global financial crisis may also further add to our losses if we cannot generate sufficient revenue to offset the increased costs of our recently-opened IBX centers or IBX centers currently under construction. In addition, costs associated with the acquisition and integration of any acquired companies, as well as the additional interest expense associated with debt financing we have undertaken to fund our growth initiatives, may also negatively impact our ability to sustain profitability. Finally, given the competitive and evolving nature of the industry in which we operate, we may not be able to sustain or increase profitability on a quarterly or annual basis.

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We are continuing to invest in our expansion efforts but may not have sufficient customer demand in the future to realize expected returns on these investments.

We are considering the acquisition or lease of additional properties and the construction of new IBX centers beyond those expansion projects already announced. We will be required to commit substantial operational and financial resources to these IBX centers, generally 12 to 18 months in advance of securing customer contracts, and we may not have sufficient customer demand in those markets to support these centers once they are built. In addition, unanticipated technological changes could affect customer requirements for data centers and we may not have built such requirements into our new IBX centers. Either of these contingencies, if they were to occur, could make it difficult for us to realize expected or reasonable returns on these investments.

Our construction of additional new IBX centers could involve significant risks to our business.

In order to sustain our growth in certain of our existing and new markets, we must acquire suitable land with or without structures to build new IBX centers from the ground up. We call these “greenfield builds.” Greenfield builds are currently underway, or being contemplated, in several key markets. A greenfield build involves substantial planning and lead-time, much longer time to completion than an IBX retrofit of an existing data center, and significantly higher costs of construction, equipment and materials, which could have a negative impact on our returns. A greenfield build also requires us to carefully select and rely on the experience of one or more general contractors and associated subcontractors during the construction process. Should a general contractor or significant subcontractor experience financial or other problems during the construction process, we could experience significant delays, increased costs to complete the project and other negative impacts to our expected returns. Site selection is also a critical factor in our expansion plans, and there may not be suitable properties available in our markets with the necessary combination of high power capacity and fiber connectivity.

While we may prefer to locate new IBX centers adjacent to our existing locations, we may be limited by the inventory and location of suitable properties as well as by the need for adequate power and fiber to the site. In the event we decide to build new IBX centers separate from our existing IBX centers, we may provide services to interconnect these two centers. Should these services not provide the necessary reliability to sustain service, this could result in lower interconnection revenue and lower margins and could have a negative impact on customer retention over time.

Any failure of our physical infrastructure or services could lead to significant costs and disruptions that could reduce our revenue and harm our business reputation and financial results.

Our business depends on providing customers with highly reliable service. We must protect our customers’ IBX infrastructure and their equipment located in our IBX centers. We continue to acquire IBX centers not built by us. If we discover that these IBX centers and their infrastructure assets are not in the condition we expected when they were acquired, we may be required to incur substantial additional costs to repair or upgrade the centers. The services we provide in each of our IBX centers are subject to failure resulting from numerous factors, including:

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Problems at one or more of our IBX centers, whether or not within our control, could result in service interruptions or significant equipment damage. We have service level commitment obligations to certain of our customers, including our significant customers. As a result, service interruptions or significant equipment damage in our IBX centers could result in difficulty maintaining service level commitments to these customers and potential claims related to such failures. Because our IBX centers are critical to many of our customers’ businesses, service interruptions or significant equipment damage in our IBX centers could also result in lost profits or other indirect or consequential damages to our customers. We cannot guarantee that a court would enforce any contractual limitations on our liability in the event that one of our customers brings a lawsuit against us as the result of a problem at one of our IBX centers.

We may incur significant liability to our customers in connection with a loss of power or our failure to meet other service level commitment obligations, or if we are held liable for a substantial damage award. In addition, any loss of service, equipment damage or inability to meet our service level commitment obligations could reduce the confidence of our customers and could consequently impair our ability to obtain and retain customers, which would adversely affect both our ability to generate revenues and our operating results.

Furthermore, we are dependent upon Internet service providers, telecommunications carriers and other website operators in the U.S., Asia-Pacific region, Europe and elsewhere, some of which have experienced significant system failures and electrical outages in the past. Users of our services may in the future experience difficulties due to system failures unrelated to our systems and services. If for any reason, these providers fail to provide the required services, our business, financial condition and results of operations could be materially and adversely impacted.

The market price of our stock may continue to be highly volatile, and the value of an investment in our common stock may decline.

Since January 1, 2008, the closing sale price of our common stock on the NASDAQ Global Select Market ranged from $35.14 to $100.75 per share. The market price of the shares of our common stock has been and may continue to be highly volatile. General economic and market conditions, and market conditions for telecommunications stocks in general, may affect the market price of our common stock.

Announcements by others or us may also have a significant impact on the market price of our common stock. These announcements may relate to:

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The stock market has from time to time experienced extreme price and volume fluctuations, which have particularly affected the market prices for emerging telecommunications companies, and which have often been unrelated to their operating performance. These broad market fluctuations may adversely affect the market price of our common stock.

We expect our operating results to fluctuate.

We have experienced fluctuations in our results of operations on a quarterly and annual basis. The fluctuations in our operating results may cause the market price of our common stock to be volatile. We expect to experience significant fluctuations in our operating results in the foreseeable future due to a variety of factors, including, but not limited to:

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Any of the foregoing factors, or other factors discussed elsewhere in this report, could have a material adverse effect on our business, results of operations and financial condition. Although we have experienced growth in revenues in recent quarters, this growth rate is not necessarily indicative of future operating results. Prior to 2008, we had generated net losses every fiscal year since inception. It is possible that we may not be able to generate positive net income on a quarterly or annual basis in the future. In addition, a relatively large portion of our expenses are fixed in the short-term, particularly with respect to lease and personnel expenses, depreciation and amortization and interest expenses. Therefore, our results of operations are particularly sensitive to fluctuations in revenues. As such, comparisons to prior reporting periods should not be relied upon as indications of our future performance. In addition, our operating results in one or more future quarters may fail to meet the expectations of securities analysts or investors. If this occurs, we could experience an immediate and significant decline in the trading price of our stock.

We are exposed to potential risks from legislation requiring companies to evaluate controls under Section 404 of the Sarbanes-Oxley Act of 2002.

Although we received an unqualified opinion regarding the effectiveness of our internal controls over financial reporting as of December 31, 2008, in the course of our ongoing evaluation of our internal controls over financial reporting we have identified certain areas which we would like to improve and are in the process of evaluating and designing enhanced processes and controls to address these areas identified during our evaluation, none of which we believe constitutes a material change. However, we cannot be certain that our efforts will be effective or sufficient for us, or our independent registered public accounting firm, to issue unqualified reports in the future, especially as our business continues to grow and evolve.

Our ability to manage our operations and growth will require us to improve our operational, financial and management controls, as well as our internal reporting systems and controls. We may not be able to implement improvements to our internal reporting systems and controls in an efficient and timely manner and may discover deficiencies in existing systems and controls. Any such deficiencies could result in material misstatements in our consolidated financial statements.

If we cannot effectively manage our international operations, and successfully implement our international expansion plans, our revenues may not increase and our business and results of operations would be harmed.

For the years ended December 31, 2008, 2007 and 2006, we recognized 37%, 23% and 14%, respectively, of our revenues outside the U.S.

To date, the neutrality of our IBX centers and the variety of networks available to our customers has often been a competitive advantage for us. In certain of our acquired IBX centers in the Asia-Pacific region the limited

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number of carriers available reduces that advantage. As a result, we may need to adapt our key revenue-generating services and pricing to be competitive in those markets. In addition, we are currently undergoing expansions or evaluating expansion opportunities in Europe and in the Asia-Pacific region. Undertaking and managing expansions in foreign jurisdictions may present unanticipated challenges to us.

Our international operations are generally subject to a number of additional risks, including:

The increased use of high power density equipment may limit our ability to fully utilize our IBX centers.

Customers are increasing their use of high-density electrical power equipment, such as blade servers, in our IBX centers which has significantly increased the demand for power on a per cabinet basis. Because many of our IBX centers were built a number of years ago, the current demand for electrical power may exceed the designed electrical capacity in these centers. As electrical power, not space, is typically the limiting factor in our IBX centers, our ability to fully utilize those IBX centers may be limited. The availability of sufficient power may also pose a risk to the successful operation of our new IBX centers. The ability to increase the power capacity of an IBX center, should we decide to, is dependent on several factors including, but not limited to, the local utility’s ability to provide additional power; the length of time required to provide such power; and/or whether it is feasible to upgrade the electrical infrastructure of an IBX center to deliver additional power to customers. Although we are currently designing and building to a much higher power specification, there is a risk that demand will continue to increase and our IBX centers could become obsolete sooner than expected.

Acquisitions present many risks, and we may not realize the financial or strategic goals that were contemplated at the time of any transaction.

Over the last several years we have completed several acquisitions (including our acquisitions of IXEurope plc in 2007 and Virtu Secure Webservices B.V. in 2008) and we may make additional acquisitions in the future. These acquisitions may include acquisitions of businesses, products, services or technologies that we believe to be complementary, as well as acquisitions of new IBX centers or real estate for development of new IBX centers. We may pay for future acquisitions by using our existing cash resources (which may limit other potential uses of our cash), incurring additional debt (which may increase our interest expense, leverage and debt service requirements) and/or issuing shares (which may dilute our existing stockholders and have a negative effect on our earnings per share). Acquisitions expose us to several potential risks, including:

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The occurrence of any of these risks could have a material adverse effect on our business, results of operations, financial condition or cash flows.

We cannot assure you that the price for any future acquisitions of IBX centers will be similar to prior IBX center acquisitions. In fact, we expect acquisition costs, including capital expenditures required to build or render new IBX centers operational, to increase in the future. If our revenue does not keep pace with these potential acquisition and expansion costs, we may not be able to maintain our current or expected margins as we absorb these additional expenses. There is no assurance we would successfully overcome these risks or any other problems encountered with these acquisitions.

Our business could be harmed by prolonged electrical power outages or shortages, increased costs of energy or general lack of availability of electrical resources.

Our IBX centers are susceptible to regional costs of power, electrical power shortages, planned or unplanned power outages and limitations, especially internationally, on the availability of adequate power resources.

Power outages, such as those that occurred in California during 2001, the Northeast in 2003, and from the tornados on the U.S. east coast in 2004, could harm our customers and our business. We attempt to limit exposure to system downtime by using backup generators and power supplies; however, we may not be able to limit our exposure entirely even with these protections in place, as was the case with the power outages we experienced in our Chicago and Washington, D.C. metro area IBX centers in 2005 and London metro area IBX centers in 2007.

In addition, global fluctuations in the price of power can increase the cost of energy, and although contractual price increase clauses exist in the majority of our customer agreements, we may not always choose to pass these increased costs on to our customers.

In each of our markets, we rely on third parties to provide a sufficient amount of power for current and future customers. At the same time, power and cooling requirements are growing on a per unit basis. As a result, some customers are consuming an increasing amount of power per cabinet. We generally do not control the amount of electric power our customers draw from their installed circuits. This means that we could face power

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limitations in our centers. This could have a negative impact on the effective available capacity of a given center and limit our ability to grow our business, which could have a negative impact on our financial performance, operating results and cash flows.

We may also have difficulty obtaining sufficient power capacity for potential expansion sites in new or existing markets. We may experience significant delays and substantial increased costs demanded by the utilities to provide the level of electrical service required by our current IBX center designs.

We may be forced to take steps, and may be prevented from pursuing certain business opportunities, to ensure compliance with certain tax-related covenants agreed to by us.

We agreed to a covenant in connection with our combination with i-STT Pte Ltd and Pihana Pacific, Inc. in 2002 (which we refer to as the FIRPTA covenant) that we would use all commercially reasonable efforts to ensure that at all times from and after the closing of the combination none of our capital stock issued to STT Communications would constitute “United States real property interests” within the meaning of Section 897(c) of the Code. Under Section 897(c) of the Code, our capital stock issued to STT Communications would generally constitute “United States real property interests” at such point in time that the fair market value of the “United States real property interests” owned by us equals or exceeds 50% of the sum of the aggregate fair market values of (a) our “United States real property interests,” (b) our interests in real property located outside the United States and (c) any other assets held by us which are used or held for use in our trade or business. Currently, the fair market value of our “United States real property interests” is significantly below the 50% threshold. However, in order to ensure compliance with the FIRPTA covenant, we may be limited with respect to the business opportunities we may pursue, particularly if the business opportunities would increase the amounts of “United States real property interests” owned by us or decrease the amount of other assets owned by us. In addition, we may take proactive steps to avoid our capital stock being deemed a “United States real property interest,” including, but not limited to, (a) a sale-leaseback transaction with respect to some or all of our real property interests, or (b) the formation of a holding company organized under the laws of the Republic of Singapore which would issue shares of its capital stock in exchange for all of our outstanding stock (which would require the submission of that transaction to our stockholders for their approval and the consummation of that exchange). We will take these actions only if such actions are commercially reasonable for our stockholders and us. We have entered into an agreement with STT Communications and its affiliate pursuant to which we will no longer be bound by the FIRPTA covenant as of September 30, 2009. If we were to breach this covenant, we may be liable for damages to STT Communications.

Increases in property taxes could adversely affect our business, financial condition and results of operations.

Our IBX centers are subject to state and local real property taxes in the U.S. and certain of our foreign jurisdictions. The state and local real property taxes on our IBX centers may increase as property tax rates change and as the value of the properties are assessed or reassessed by taxing authorities. Many state and local governments are facing budget deficits, which may cause them to increase assessments or taxes. If property taxes increase, our business, financial condition and operating results could be adversely affected.

A small number of our stockholders has voting control over a substantial portion of our stock and has influence over matters requiring stockholder consent.

Several of our stockholders each hold voting control over greater than 10% of our outstanding common stock. In addition, these stockholders are not prohibited from buying shares of our stock in public or private transactions. As a result, each of these stockholders is able to exercise significant control over all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions, which could prevent or delay a third party from acquiring or merging with us.

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We have various mechanisms in place that may discourage takeover attempts.

Certain provisions of our certificate of incorporation and bylaws may discourage, delay or prevent a third party from acquiring control of us in a merger, acquisition or similar transaction that a stockholder may consider favorable. Such provisions include:

In addition, Section 203 of the Delaware General Corporation Law, which restricts certain business combinations with interested stockholders in certain situations, may also discourage, delay or prevent someone from acquiring or merging with us.

Environmental regulations may impose upon us new or unexpected costs.

We are subject to various environmental and health and safety laws and regulations, including those relating to the generation, storage, handling and disposal of hazardous substances and wastes. Certain of these laws and regulations also impose joint and several liability, without regard to fault, for investigation and cleanup costs on current and former owners and operators of real property and persons who have disposed of or released hazardous substances into the environment. Our operations involve the use of hazardous substances and materials such as petroleum fuel for emergency generators, as well as batteries, cleaning solutions and other materials. In addition, we lease, own or operate real property at which hazardous substances and regulated materials have been used in the past. At some of our locations, hazardous substances or regulated materials are known to be present in soil or groundwater and there may be additional unknown hazardous substances or regulated materials present at sites we own, operate or lease. At some of our locations, there are land use restrictions in place relating to earlier environmental cleanups that do not materially limit our use of the sites. To the extent any hazardous substances or any other substance or material must be cleaned up or removed from our property, we may be responsible under applicable laws, regulations or leases for the removal or cleanup of such substances or materials, the cost of which could be substantial.

In addition, we are subject to environmental, health and safety laws regulating air emissions, storm water management and other issues arising in our business. While these obligations do not normally impose material costs upon our operations, unexpected events, equipment malfunctions and human error, among other factors, can lead to violations of environmental laws, regulations or permits. Noncompliance with existing, or adoption of more stringent, environmental or health and safety laws and regulations or the discovery of previously unknown contamination could require us to incur costs or become the basis of new or increased liabilities that could be material.

Fossil fuel combustion creates greenhouse gas emissions that are linked to global climate change. Regulations to limit greenhouse gas emissions are in force in the European Union in an effort to prevent or reduce climate change. In the United States, federal proposals are expected to be introduced that would, if adopted, implement some form of regulation or taxation to reduce or mitigate greenhouse gas emissions. Several states within the United States have adopted laws intended to limit fossil fuel consumption and/or encourage renewable energy development for the same purpose. The proposals include a tax on carbon, a carbon

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“cap-and-trade” market, and/or other restrictions on carbon and greenhouse gas emissions. California’s Global Warming Solutions Act of 2006 established a statewide greenhouse gas emissions cap and will require mandatory emissions reporting. The area of greenhouse gas limitations and regulation is rapidly changing and will continue to change as additional legislation is considered and adopted, and regulations are finalized that implement existing law.

We do not anticipate being directly regulated by each of the potential or developing climate change-related laws and regulations, but the resulting controls on greenhouse gas emissions are likely to increase the costs of electricity or fossil fuels, and these cost increases could materially increase our costs of operation or limit the availability of electricity or emergency generator fuels. If laws reducing greenhouse gas emissions are passed or new regulations are implemented based on existing law, we may be required to modify our emergency power source systems, buildings or other infrastructure in order to comply, the cost of which could be substantial.

To the extent any of these environmental regulations impose new or unexpected costs, our business, results of operations or financial condition may be adversely affected.

We depend on a number of third parties to provide Internet connectivity to our IBX centers; if connectivity is interrupted or terminated, our operating results and cash flow could be materially and adversely affected.

The presence of diverse telecommunications carriers’ fiber networks in our IBX centers is critical to our ability to retain and attract new customers. We are not a telecommunications carrier, and as such we rely on third parties to provide our customers with carrier services. We believe that the availability of carrier capacity will directly affect our ability to achieve our projected results. We rely primarily on revenue opportunities from the telecommunications carriers’ customers to encourage them to invest the capital and operating resources required to connect from their centers to our IBX centers. Carriers will likely evaluate the revenue opportunity of an IBX center based on the assumption that the environment will be highly competitive. We cannot provide assurance that each and every carrier will elect to offer its services within our IBX centers or that once a carrier has decided to provide Internet connectivity to our IBX centers that it will continue to do so for any period of time. Further, many carriers are experiencing business difficulties or announcing consolidations. As a result, some carriers may be forced to downsize or terminate connectivity within our IBX centers, which could have an adverse effect on our operating results.

Our new IBX centers require construction and operation of a sophisticated redundant fiber network. The construction required to connect multiple carrier facilities to our IBX centers is complex and involves factors outside of our control, including regulatory processes and the availability of construction resources. If the establishment of highly diverse Internet connectivity to our IBX centers does not occur, is materially delayed or is discontinued, or is subject to failure, our operating results and cash flow will be adversely affected. Any hardware or fiber failures on this network may result in significant loss of connectivity to our new IBX center expansions. This could affect our ability to attract new customers to these IBX centers or retain existing customers.

We may be vulnerable to security breaches which could disrupt our operations and have a material adverse effect on our financial performance and operating results.

A party who is able to compromise the security measures on our networks or the security of our infrastructure could misappropriate either our proprietary information or the personal information of our customers, or cause interruptions or malfunctions in our operations. We may be required to expend significant capital and resources to protect against such threats or to alleviate problems caused by breaches in security. As techniques used to breach security change frequently, and are generally not recognized until launched against a target, we may not be able to implement security measures in a timely manner or, if and when implemented, whether these measures could be circumvented. Any breaches that may occur could expose us to increased risk

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of lawsuits, regulatory penalties, loss of existing or potential customers, harm to our reputation and increases in our security costs, which could have a material adverse effect on our financial performance and operating results.

A small number of customers account for a significant portion of our revenues, and the loss of any of these customers could significantly harm our business, financial condition and results of operations.

While no single customer accounted for 10% or more of our revenues for the years ended December 31, 2008, 2007 and 2006, our top 10 customers accounted for approximately 20%, 23% and 25%, respectively, of our revenues during these periods. We expect that a small percentage of our customers will continue to account for a significant portion of our revenues for the foreseeable future. We cannot guarantee that we will retain these customers or that they will maintain their commitments in our IBX centers at current levels. If we lose any of these key customers, or if any of them decide to reduce the level of their commitment to us, our business, financial condition and results of operations could be adversely affected.

We resell products and services of third parties that may require us to pay for such products and services even if our customers fail to pay us for them, which may have a negative impact on our operating results.

In order to provide resale services such as bandwidth, managed services and other network management services, we contract with third party service providers. These services require us to enter into fixed term contracts for services with third party suppliers of products and services. If we experience the loss of a customer who has purchased a resale product, we may remain obligated to continue to pay our suppliers for the term of the underlying contracts. The payment of these obligations without a corresponding payment from customers will reduce our financial resources and may have a material adverse effect on our operating and financial results and cash flows.

We have government customers, which subjects us to risks including early termination, audits, investigations, sanctions and penalties.

We derive some revenues from contracts with the U.S. government, state and local governments and their respective agencies. Some of these customers may terminate all or part of their contracts at any time, without cause.

There is increased pressure for governments and their agencies, both domestically and internationally, to reduce spending. Some of our federal government contracts are subject to the approval of appropriations being made by the U.S. Congress to fund the expenditures under these contracts. Similarly, some of our contracts at the state and local levels are subject to government funding authorizations.

Additionally, government contracts are generally subject to audits and investigations which could result in various civil and criminal penalties and administrative sanctions, including termination of contracts, refund of a portion of fees received, forfeiture of profits, suspension of payments, fines and suspensions or debarment from future government business.

We may not be able to compete successfully against current and future competitors.

Our IBX centers and other products and services must be able to differentiate themselves from those of other providers of space and services for telecommunications companies, webhosting companies and other colocation providers. In addition to competing with neutral colocation providers, we must compete with traditional colocation providers, including telecom companies, carriers, Internet service providers and webhosting facilities. Similarly, with respect to our other products and services, including managed services, bandwidth services and security services, we must compete with more established providers of similar services. Most of these companies have longer operating histories and significantly greater financial, technical, marketing and other resources than us.

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Because of their greater financial resources, some of our competitors have the ability to adopt aggressive pricing policies, especially if they have been able to restructure their debt or other obligations. As a result, in the future, we may suffer from pricing pressure that would adversely affect our ability to generate revenues and adversely affect our operating results. In addition, these competitors could offer colocation on neutral terms, and may start doing so in the same metropolitan areas in which we have IBX centers. Some of these competitors may also provide our target customers with additional benefits, including bundled communication services, and may do so in a manner that is more attractive to our potential customers than obtaining space in our IBX centers. If these competitors were able to adopt aggressive pricing policies together with offering colocation space, our ability to generate revenues may be materially and adversely affected.

We may also face competition from persons seeking to replicate our IBX center concept by building new IBX centers or converting existing IBX centers that some of our competitors are in the process of divesting. We may continue to see increased competition for data center space and customers from large REITS who also operate in our market. We may experience competition from our landlords, some of which are REITS, in this regard. Rather than leasing available space in our buildings to large single tenants, they may decide to convert the space instead to smaller square foot units designed for multi-tenant colocation use. Landlords/REITS may enjoy a cost effective advantage in providing services similar to those provided by our IBX centers, and in addition to the risk of losing customers to these parties this could also reduce the amount of space available to us for expansion in the future. Competitors may operate more successfully or form alliances to acquire significant market share. Furthermore, enterprises that have already invested substantial resources in outsourcing arrangements may be reluctant or slow to replace, limit or compete with their existing systems by becoming a customer. Customers may also decide it is cost effective for them to build out their own data centers which could have a negative impact on our results of operations. In addition, other companies may be able to attract the same potential customers that we are targeting. Once customers are located in competitors’ facilities, it may be extremely difficult to convince them to relocate to our IBX centers.

Because we depend on the retention of key employees, failure to maintain competitive compensation packages, including equity incentives, may be disruptive to our business.

Our success in retaining key employees and discouraging them from moving to a competitor is an important factor in our ability to remain competitive. As is common in our industry, our employees are typically compensated through grants of equity awards in addition to their regular salaries. In addition to granting equity awards to selected new hires, we periodically grant new equity awards to certain employees as an incentive to remain with us. To the extent we are unable to offer competitive compensation packages to our employees and adequately maintain equity incentives due to equity expensing or otherwise, and should employees decide to leave us, this may be disruptive to our business and may adversely affect our business, financial condition and results of operations.

Because we depend on the development and growth of a balanced customer base, failure to attract and retain this base of customers could harm our business and operating results.

Our ability to maximize revenues depends on our ability to develop and grow a balanced customer base, consisting of a variety of companies, including global enterprises, content providers, financial companies, and network service providers. The more balanced the customer base within each IBX center, the better we will be able to generate significant interconnection revenues, which in turn increases our overall revenues. Our ability to attract customers to our IBX centers will depend on a variety of factors, including the presence of multiple carriers, the mix of products and services offered by us, the overall mix of customers, the IBX center’s operating reliability and security and our ability to effectively market our services. However, some of our customers are, and are likely to continue to be, Internet companies that face many competitive pressures and that may not ultimately be successful. If these customers do not succeed, they will not continue to use the IBX centers which may be disruptive to our business. Finally, the current economic downturn may harm our ability to attract and retain customers if customers slow spending, or delay decision-making, on our products and services or if

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customers begin to have difficulty paying us and we experience increased churn in our customer base. Any of these factors may hinder the development and growth of a balanced customer base and adversely affect our business, financial condition and results of operations.

The failure to obtain favorable terms when we renew our IBX center leases could harm our business and results of operations.

While we own certain of our IBX centers, others are leased under long-term arrangements with lease terms expiring at various dates ranging from 2009 to 2027. These leased centers have all been subject to significant development by us in order to convert them from, in most cases, vacant buildings or warehouses into IBX centers. All of our IBX center leases have renewal options available to us. However, these renewal options provide for rent set at then-prevailing market rates. To the extent that then-prevailing market rates are higher than present rates, these higher costs may adversely impact our business and results of operations.

We are subject to securities class action and other litigation, which may harm our business and results of operations.

During the quarter ended September 30, 2001, putative shareholder class action lawsuits were filed against us, a number of our officers and directors, and several investment banks that were underwriters of our initial public offering. Similar complaints were filed against more than 300 other issuers, their officers and directors, and investment banks. The suits allege that the underwriter defendants agreed to allocate stock in our initial public offering to certain investors in exchange for excessive and undisclosed commissions and agreements by those investors to make additional purchases in the aftermarket at pre-determined prices. Plaintiffs allege that the prospectus for our initial public offering was false and misleading and in violation of the securities laws because it did not disclose these arrangements. A previously agreed upon settlement with the plaintiffs has been terminated. On August 14, 2007, the plaintiffs filed amended complaints in six cases selected as test, or “focus,” cases and moved for class certification on September 27, 2007. On October 10, 2008, at the request of Plaintiffs, Plaintiffs’ motion for class certification was withdrawn, without prejudice. The parties in the approximately 300 coordinated class actions, including Equinix, the underwriter defendants in the Equinix class action, and the plaintiffs in the Equinix class action, have reached an agreement in principle under which the insurers for the issuer defendants in the coordinated cases will make the settlement payment on behalf of the issuers, including Equinix. The settlement is subject to approval by the parties and is also subject to Court approval.

On August 22, 2008, a complaint was filed against Equinix, certain former officers and directors of Pihana Pacific, Inc. (“Pihana”), certain investors in Pihana, and others. The lawsuit was filed in the First Circuit Court of the State of Hawaii, and arises out of December 2002 agreements pursuant to which Equinix merged Pihana and i-STT (a subsidiary of Singapore Technologies Telemedia Pte Ltd) into the internet exchange services business of Equinix. Plaintiffs, who were allegedly holders of Pihana common stock, allege that their rights as shareholders were violated, and the transaction was effectuated improperly, by Pihana’s majority shareholders, officers and directors, with the alleged assistance of Equinix and others. Among other things, plaintiffs contend that they effectively had a right to block the transaction, that this supposed right was disregarded, and that they improperly received no consideration when the deal was completed. The complaint seeks to recover unspecified punitive damages, equitable relief, fees and costs, and compensatory damages in an amount that plaintiffs allegedly “believe may be all or a substantial portion of the approximately $725 million value of Equinix held by Defendants” (a group that includes more than 30 individuals and entities). An amended complaint, which adds new plaintiffs (other alleged holders of Pihana common stock), but is otherwise substantially similar to the original pleading, was filed on September 29, 2008 (the “Amended Complaint”). On October 13, 2008, a complaint was filed by another purported holder of Pihana common stock, naming the same defendants and asserting substantially similar allegations as the August 22, 2008 and September 29, 2008 pleadings. On December 12, 2008, the court entered a stipulated order, which consolidated the two actions under one case number and set January 22, 2009 as the last day for Defendants to move to dismiss or otherwise respond to the Amended Complaint, the operative complaint in this case. On January 22, 2009, motions to dismiss the Amended

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Complaint were filed by Equinix and other Defendants. The court has not yet ruled on any of the motions to dismiss. We believe that plaintiffs’ claims and alleged damages are without merit and we intend to defend the litigation vigorously.

Due to the inherent uncertainties of litigation, we cannot accurately predict the ultimate outcomes of the above matters or whether such outcomes would have a material impact on our business, results of operations, financial condition or cash flows.

We continue to participate in the defense of the above matters, which may increase our expenses and divert management’s attention and resources. In addition, we may, in the future, be subject to other litigation. For example, securities class action litigation has often been brought against a company following periods of volatility in the market price of its securities. Any adverse outcome in litigation could seriously harm our business, results of operations, financial condition or cash flows.

We may not be able to protect our intellectual property rights.

We cannot assure that the steps taken by us to protect our intellectual property rights will be adequate to deter misappropriation of proprietary information or that we will be able to detect unauthorized use and take appropriate steps to enforce our intellectual property rights. We also are subject to the risk of litigation alleging infringement of third-party intellectual property rights. Any such claims could require us to spend significant sums in litigation, pay damages, develop non-infringing intellectual property, or acquire licenses to the intellectual property that is the subject of the alleged infringement.

If the use of the Internet does not continue to grow, our revenues may not grow.

Acceptance and use of the Internet may not continue to develop at historical rates. Demand for Internet services and products are subject to a high level of uncertainty and are subject to significant pricing pressure. As a result, we cannot be certain that a viable market for our IBX centers will be sustained. If the market for our IBX centers grows more slowly than we currently anticipate, our revenues may not grow and our operating results could suffer.

Government regulation may adversely affect the use of the Internet and our business.

Various laws and governmental regulations governing Internet related services, related communications services and information technologies and electronic commerce remain largely unsettled, even in areas where there has been some legislative action. This is true both in the U.S. and the various foreign countries in which we operate. It may take years to determine whether and how existing laws, such as those governing intellectual property, privacy, libel, telecommunications services and taxation, apply to the Internet and to related services such as ours. We have limited experience with such international regulatory issues and substantial resources may be required to comply with regulations or bring any non-compliant business practices into compliance with such regulations. In addition, the development of the market for online commerce and the displacement of traditional telephony service by the Internet and related communications services may prompt an increased call for more stringent consumer protection laws or other regulation both in the U.S. and abroad that may impose additional burdens on companies conducting business online and their service providers. The compliance with, adoption or modification of, laws or regulations relating to the Internet, or interpretations of existing laws, could have a material adverse effect on our business, financial condition and results of operation.

Industry consolidation may have a negative impact on our business model.

The telecommunications industry is currently undergoing consolidation. As customers combine businesses, they may require less colocation space, and there may be fewer networks available to choose from. Given the competitive and evolving nature of this industry, further consolidation of our customers and/or our competitors

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may present a risk to our network-neutral business model and have a negative impact on our revenues. In addition, increased utilization levels industry-wide could lead to a reduced amount of attractive expansion opportunities available to us.

Terrorist activity throughout the world and military action to counter terrorism could adversely impact our business.

The September 11, 2001 terrorist attacks in the U.S., the ensuing declaration of war on terrorism and the continued threat of terrorist activity and other acts of war or hostility contribute to a climate of political and economic uncertainty. Due to existing or developing circumstances, we may need to incur additional costs in the future to provide enhanced security, which would have a material adverse effect on our business and results of operations. These circumstances may also adversely affect our ability to attract and retain customers, our ability to raise capital and the operation and maintenance of our IBX centers. We may not have adequate property and liability insurance to cover catastrophic events or attacks.

There is no disclosure to report pursuant to Item 1B.

Our executive offices are located in Foster City, California, and we also have sales offices in several cities throughout the United States. Our Asia-Pacific headquarters office is located in Hong Kong and we also have office space in Singapore; Tokyo, Japan; and Sydney, Australia, which is operated out of our IBX center there. Our European headquarters office is located in London, U.K. and our regional sales offices in Europe are based in our IBX centers in Europe. We have entered into leases for certain of our IBX centers in Dallas, Texas; Chicago, Illinois; Los Angeles, San Jose, Santa Clara and Sunnyvale, California; Newark and Secaucus, New Jersey; Hong Kong; Singapore; Sydney, Australia; Tokyo, Japan; London, U.K.; Paris, France; Frankfurt, Munich and Dusseldorf, Germany; Zurich and Geneva, Switzerland and Enschede, Zwolle and Amsterdam, Netherlands. We own certain of our IBX centers in Ashburn, Virginia; Chicago, Illinois; Los Angeles and San Jose, California and Frankfurt, Germany. We own campuses in Ashburn, Virginia and Frankfurt, Germany that house some of our IBX centers mentioned in the preceding sentence.

On July 30, 2001 and August 8, 2001, putative shareholder class action lawsuits were filed against us, certain of our officers and directors (the “Individual Defendants”), and several investment banks that were underwriters of our initial public offering (the “Underwriter Defendants”). The cases were filed in the United States District Court for the Southern District of New York. Similar lawsuits were filed against approximately 300 other issuers and related parties. These lawsuits have been coordinated before a single judge. The purported class action alleges violations of Sections 11 and 15 of the Securities Act of 1933 and Sections 10(b), Rule 10b-5 and 20(a) of the Securities Exchange Act of 1934 against us and the Individual Defendants. The plaintiffs have since dismissed the Individual Defendants without prejudice. The suits allege that the Underwriter Defendants agreed to allocate stock in our initial public offering to certain investors in exchange for excessive and undisclosed commissions and agreements by those investors to make additional purchases in the aftermarket at pre-determined prices. The plaintiffs allege that the prospectus for our initial public offering was false and misleading and in violation of the securities laws because it did not disclose these arrangements. The action seeks damages in an unspecified amount. On February 19, 2003, the Court dismissed the Section 10(b) claim against us, but denied the motion to dismiss the Section 11 claim. On December 5, 2006, the Second Circuit vacated a decision by the district court granting class certification in six “focus” cases, which are intended to serve as test cases. Plaintiffs selected these six cases, which do not include Equinix. On April 6, 2007, the Second Circuit denied a petition for rehearing filed by plaintiffs, but noted that plaintiffs could ask the district court to certify

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more narrow classes than those that were rejected. On August 14, 2007, plaintiffs filed amended complaints in the six focus cases. On September 27, 2007, plaintiffs moved to certify a class in the six focus cases. On November 14, 2007, the issuers and the underwriters named as defendants in the six focus cases moved to dismiss the amended complaints against them. On March 26, 2008, the district court dismissed the Section 11 claims of those members of the putative classes in the focus cases who sold their securities for a price in excess of the initial offering price and those who purchased outside the previously certified class period. With respect to all other claims, the motions to dismiss were denied. On October 10, 2008, at the request of the plaintiffs, plaintiffs’ motion for class certification was withdrawn, without prejudice.

The parties in the approximately 300 coordinated class actions, including Equinix, the underwriter defendants in the Equinix class action, and the plaintiffs in the Equinix class action, have reached an agreement in principle under which the insurers for the issuer defendants in the coordinated cases will make the settlement payment on behalf of the issuers, including Equinix. The settlement is subject to approval by the parties and is also subject to Court Approval.

Due to the inherent uncertainties of litigation, we cannot accurately predict the ultimate outcome of the matter. We are unable at this time to determine whether the outcome of the litigation would have a material impact on our results of operations, financial condition or cash flows. We intend to continue to defend the action vigorously.

On August 22, 2008, a complaint was filed against Equinix, certain former officers and directors of Pihana Pacific, Inc. (“Pihana”), certain investors in Pihana, and others. The lawsuit was filed in the First Circuit Court of the State of Hawaii, and arises out of December 2002 agreements pursuant to which Equinix merged Pihana and i-STT (a subsidiary of Singapore Technologies Telemedia Pte Ltd) into the internet exchange services business of Equinix. Plaintiffs, who were allegedly holders of Pihana common stock, allege that their rights as shareholders were violated, and the transaction was effectuated improperly, by Pihana’s majority shareholders, officers and directors, with the alleged assistance of Equinix and others. Among other things, plaintiffs contend that they effectively had a right to block the transaction, that this supposed right was disregarded, and that they improperly received no consideration when the deal was completed. The complaint seeks to recover unspecified punitive damages, equitable relief, fees and costs, and compensatory damages in an amount that plaintiffs allegedly “believe may be all or a substantial portion of the approximately $725.0 million value of Equinix held by Defendants” (a group that includes more than 30 individuals and entities). An amended complaint, which adds new plaintiffs (other alleged holders of Pihana common stock) but is otherwise substantially similar to the original pleading, was filed on September 29, 2008 (the “Amended Complaint”). On October 13, 2008, a complaint was filed in a separate action by another purported holder of Pihana common stock, naming the same defendants and asserting substantially similar allegations as the August 22, 2008 and September 29, 2008 pleadings. On December 12, 2008, the court entered a stipulated order, which consolidated the two actions under one case number and set January 22, 2009 as the last day for Defendants to move to dismiss or otherwise respond to the Amended Complaint, the operative complaint in this case. On January 22, 2009, motions to dismiss the Amended Complaint were filed by Equinix and other Defendants. The court has not yet ruled on any of the motions to dismiss. We believe that plaintiffs’ claims and alleged damages are without merit and we intend to defend the litigation vigorously.

Due to the inherent uncertainties of litigation, we cannot accurately predict the ultimate outcome of the matter. We are unable at this time to determine whether the outcome of the litigation would have a material impact on our results of operations, financial condition or cash flows.

None during the fourth quarter of the fiscal year ended December 31, 2008.

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PART II

Our common stock is quoted on the NASDAQ Global Select Market under the symbol of “EQIX.” Our common stock began trading in August 2000. The following table sets forth on a per share basis the low and high closing prices of our common stock as reported by the NASDAQ Global Select Market during the last two years.

As of January 31, 2009, we had issued 37,769,926 shares of our common stock outstanding held by approximately 242 registered holders.

We have never declared or paid any cash dividends on our common stock and we do not anticipate paying cash dividends in the foreseeable future. We currently intend to retain our earnings, if any, for future growth. Future dividends on our common stock, if any, will be at the discretion of our Board of Directors and will depend on, among other things, our operations, capital requirements and surplus, general financial condition, contractual restrictions and such other factors that our Board of Directors may deem relevant.

During the year ended December 31, 2008, we did not issue or sell any securities on an unregistered basis.

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Stock Performance Graph

The graph set forth below compares the cumulative total stockholder return on Equinix’s common stock between December 31, 2003 and December 31, 2008 with the cumulative total return of (i) The NASDAQ Composite Index and (ii) The NASDAQ Telecommunications Index. This graph assumes the investment of $100.00 on December 31, 2003 in Equinix’s common stock, in The NASDAQ Composite Index, and in The NASDAQ Telecommunications Index, and assumes the reinvestment of dividends, if any.

Equinix cautions that the stock price performance shown in the graph below is not indicative of, nor intended to forecast, the potential future performance of Equinix’s common stock.

Notwithstanding anything to the contrary set forth in any of Equinix’s previous or future filings under the Securities Act of 1933, as amended, or Securities Exchange Act of 1934, as amended, that might incorporate this Form 10-K or future filings made by Equinix under those statutes, the Stock Performance Graph shall not be deemed filed with the Securities and Exchange Commission and shall not be deemed incorporated by reference into any of those prior filings or into any future filings made by Equinix under those statutes.

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The following consolidated statement of operations data for the five years ended December 31, 2008 and the consolidated balance sheet data as of December 31, 2008, 2007, 2006, 2005 and 2004 have been derived from our audited consolidated financial statements and the related notes. Our historical results are not necessarily indicative of the results to be expected for future periods. The following selected consolidated financial data for the three years ended December 31, 2008 and as of December 31, 2008 and 2007, should be read in conjunction with our audited consolidated financial statements and the related notes in Item 8 of this Annual Report on Form 10-K and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7 of this Annual Report on Form 10-K. In addition, in September 2007, we completed our acquisition of IXEurope plc, a significant acquisition. For further information on this acquisition, refer to Note 2 of our Notes to Consolidated Financial Statements in Item 8 of this Annual Report on Form 10-K.

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The following commentary should be read in conjunction with the financial statements and related notes contained elsewhere in this Annual Report on Form 10-K. The information in this discussion contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements are based upon current expectations that involve risks and uncertainties. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. For example, the words “believes,” “anticipates,” “plans,” “expects,” “intends” and similar expressions are intended to identify forward-looking statements. Our actual results and the timing of certain events may differ significantly from the results discussed in the forward-looking statements. Factors that might cause such a discrepancy include, but are not limited to, those discussed in “Liquidity and Capital Resources” and “Risk Factors” elsewhere in this Annual Report on Form 10-K. All forward-looking statements in this document are based on information available to us as of the date hereof and we assume no obligation to update any such forward-looking statements.

Our management’s discussion and analysis of financial condition and results of operations is intended to assist readers in understanding our financial information from our management’s perspective and is presented as follows:

Overview

Equinix provides network-neutral colocation, interconnection and managed services to global enterprises, content providers, financial companies and the world’s largest network service providers. As of December 31, 2008, we operated IBX centers in the Chicago, Dallas, Los Angeles, New York, Silicon Valley and Washington, D.C. metro areas in the United States, France, Germany, the Netherlands, Switzerland and the United Kingdom in the Europe region, and Australia, Hong Kong, Japan and Singapore in the Asia-Pacific region. We entered the European region in September 2007 through our acquisition of IXEurope Plc, or IXEurope, headquartered in London, U.K. We refer to this transaction as the IXEurope acquisition. We then acquired Virtu Secure Webservices B.V., or Virtu, based in the Netherlands to supplement our European operations in February 2008. We refer to this transaction as the Virtu acquisition.

Direct interconnection to our aggregation of networks, which serve more than 90% of the world’s Internet routes, allows our customers to increase performance while significantly reducing costs. Based on our network-neutral model and the quality of our IBX centers, we believe we have established a critical mass of customers. As more customers locate in our IBX centers, it benefits their suppliers and business partners to do so as well to gain the full economic and performance benefits of direct interconnection. These partners, in turn, pull in their business partners, creating a “network effect” of customer adoption. Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange thus lowering overall cost and increasing flexibility. Our focused business model is based on our critical mass of customers and the resulting network effect. This critical mass and the resulting network effect, combined with our strong financial position, continue to drive new customer growth and bookings.

Historically, our market has been served by large telecommunications carriers who have bundled their telecommunications products and services with their colocation offerings. Each of these colocation providers own and operate a network. We do not own or operate a network, yet have greater than 300 networks operating

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out of our IBX centers. As a result, we are able to offer our customers a substantial choice of networks given our network neutrality thereby allowing our customers to choose from numerous network service providers. We believe this is a distinct and sustainable competitive advantage.

On a consolidated basis our customer count increased to 2,272, excluding the impact of the Virtu acquisition, as of December 31, 2008 versus 1,881 as of December 31, 2007, an increase of 21%. Including the impact of the Virtu acquisition, our customer count was 2,757 as of December 31, 2008, an increase of 47%. Our utilization rate represents the percentage of our cabinet space billing versus net sellable cabinet space available taking into account power limitations. Excluding the impact of the IXEurope and the Virtu acquisitions, our utilization rate increased to 81% as of December 31, 2008 versus 73% as of December 31, 2007; however, further excluding the impact of our IBX center expansion projects that have opened during the last 12 months, our utilization rate would have been 85% as of December 31, 2008. Our utilization rate varies from market to market among our IBX centers across the U.S., Europe and Asia-Pacific. We continue to monitor the available capacity in each of our selected markets. To the extent we have limited capacity available in a given market it may limit our ability for growth in that market. We perform demand studies on an ongoing basis to determine if future expansion is warranted in a market. In addition, power and cooling requirements for most customers are growing on a per unit basis. As a result, customers are consuming an increasing amount of power per cabinet. Although we generally do not control the amount of power our customers draw from installed circuits, we have negotiated power consumption limitations with certain of our high power demand customers. This increased power consumption has driven the requirement to build out our new IBX centers to support power and cooling needs twice that of previous IBX centers. We could face power limitations in our centers even though we may have additional physical cabinet capacity available within a specific IBX center. This could have a negative impact on the available utilization capacity of a given center, which could have a negative impact on our ability to grow revenues, affecting our financial performance, operating results and cash flows.

Strategically, we will continue to look at attractive opportunities to grow our market share and selectively improve our footprint and service offerings. As was the case with our recent expansions and acquisitions, our expansion criteria will be dependent on a number of factors such as demand from new and existing customers, quality of the design, power capacity, access to networks, capacity availability in current market location, amount of incremental investment required by us in the targeted property, lead-time to break-even and in-place customers. Like our recent expansions and acquisitions, the right combination of these factors may be attractive to us. Dependent on the circumstances, these transactions may require additional capital expenditures funded by upfront cash payments or through long-term financing arrangements in order to bring these properties up to Equinix standards. Property expansion may be in the form of purchases of real property, long-term leasing arrangements or acquisitions. Future purchases, construction or acquisitions may be completed by us or with partners or potential customers to minimize the outlay of cash, which can be significant.

Our business is based on a recurring revenue model comprised of colocation, interconnection and managed infrastructure services. We consider these services recurring as our customers are generally billed on a fixed and recurring basis each month for the duration of their contract, which is generally one to three years in length. Our recurring revenues comprise greater than 90% of our total revenues. Over the past few years, greater than half of our then existing customers ordered new services in any given quarter representing greater than half of the new orders received in each quarter, contributing to our revenue growth.

Our non-recurring revenues are primarily comprised of installation services related to a customer’s initial deployment and professional services that we perform. These services are considered to be non-recurring as they are billed typically once and upon completion of the installation or professional services work performed. The majority of these non-recurring revenues are typically billed on the first invoice distributed to the customer in connection with their initial installation. As a percentage of total revenues, we expect non-recurring revenues to represent less than 10% of total revenues for the foreseeable future.

Our U.S. revenues are derived primarily from colocation and interconnection services while our Europe and Asia-Pacific revenues are derived primarily from colocation and managed infrastructure services.

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The largest cost components of our cost of revenues are depreciation, rental payments related to our leased IBX centers, utility costs, including electricity and bandwidth, IBX center employees’ salaries and benefits, including stock-based compensation, repairs and maintenance, supplies and equipment and security services. A substantial majority of our cost of revenues is fixed in nature and should not vary significantly from period to period, unless we expand our existing IBX centers or open new IBX centers. However, there are certain costs which are considered more variable in nature, including utilities and supplies that are directly related to growth in our existing and new customer base. We expect the cost of our utilities, specifically electricity, will increase in the future on a per-unit or fixed basis in addition to the variable increase related to the growth of consumption by the customer. In addition, the cost of electricity is generally higher in the summer months as compared to other times of the year.

Sales and marketing expenses consist primarily of compensation and related costs for sales and marketing personnel, including stock-based compensation, sales commissions, marketing programs, public relations, promotional materials and travel, as well as bad debt expense and amortization of customer contract intangible assets.

General and administrative expenses consist primarily of salaries and related expenses, including stock-based compensation, accounting, legal and other professional service fees, and other general corporate expenses such as our corporate headquarters office lease and some depreciation expense.

Due to our recurring revenue model and a cost structure which has a large base that is fixed in nature and generally does not grow in proportion to revenue growth, we expect our cost of revenues, sales and marketing expenses and general and administrative expenses to decline as a percentage of revenue over time, although we expect each of them to grow in absolute dollars in connection to our growth. This is evident in the trends noted below in our discussion on our results of operations. However, for cost of revenues, this trend may periodically be impacted when a large expansion project opens and before it starts generating any meaningful revenue.

Results of Operations

Our results of operations for the year ended December 31, 2008 include the operations of Virtu from February 5, 2008 to December 31, 2008. Our results of operations for the year ended December 31, 2007 include the operations of IXEurope from September 14, 2007 to December 31, 2007, but do not include the operations of Virtu.

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Years Ended December 31, 2008 and 2007

Revenues. Our revenues for the years ended December 31, 2008 and 2007 were generated from the following revenue classifications and geographic regions (dollars in thousands):

U.S. Revenues. The period over period growth in recurring revenues was primarily the result of an increase in orders from both our existing customers and new customers during the period as reflected in the growth in our customer count and utilization rate, as discussed above, in both our new and existing IBX centers, as well as selective price increases in each of our IBX markets. During the year ended December 31, 2008, we recorded $30.6 million of revenue generated from our newly-opened IBX centers or IBX center expansions in the Chicago, New York, Silicon Valley and Washington, D.C. metro areas. We expect that our U.S. revenues will continue to grow in future periods as a result of continued growth in these newly-opened IBX centers and additional expansions currently taking place in the Los Angeles and New York metro areas, both of which are expected to open during mid-2009.

Europe Revenues. Our revenues from the United Kingdom, the largest revenue contributor in the Europe region, represented approximately 38% and 37%, respectively, of the regional revenues for the years ended December 31, 2008 and 2007. Our Europe revenues have increased over the course of 2008 as this region has grown due to our expansion efforts and we expect our Europe revenues to continue to grow in future periods, as a result of our newly-opened IBX center expansions in the Amsterdam, Frankfurt, London and Paris metro areas and additional expansions currently taking place in the Amsterdam, Frankfurt, London and Paris metro areas, all of which are expected to open during the first half of 2009, with the exception of the current London expansion which is expected to open during the first half of 2010.

Asia-Pacific Revenues. Our revenues from Singapore, the largest revenue contributor in the Asia-Pacific region, represented approximately 36% and 35%, respectively, of the regional revenues for the years ended December 31, 2008 and 2007. As in the U.S., Asia-Pacific revenue growth was due to an increase in orders from both our existing customers and new customers during the period as reflected in the growth in our customer count and utilization rate, as discussed above, in both our new and existing IBX centers, as well as selective price increases in each of our IBX markets. During the year ended December 31, 2008, we recorded $12.5 million of revenue generated from our IBX center expansions in the Hong Kong, Singapore and Tokyo metro areas. We

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expect that our Asia-Pacific revenues will continue to grow in future periods as a result of continued growth in these newly-opened IBX center expansions and additional expansions currently taking place in the Sydney metro area, which is expected to open during the first half of 2009, and the Hong Kong and Singapore metro areas which are expected to open during the second half of 2009.

Cost of Revenues. Our cost of revenues for the years ended December 31, 2008 and 2007 were split among the following geographic regions (dollars in thousands):

U.S. Cost of Revenues. U.S. cost of revenues for the years ended December 31, 2008 and 2007 included $91.8 million and $73.6 million, respectively, of depreciation expense. Growth in depreciation expense was due to our IBX center expansion activity. Excluding depreciation, the increase in U.S. cost of revenues was primarily due to overall growth related to our revenue growth and costs associated with our expansion projects, including (i) an increase of $15.7 million in utility costs as a result of increased customer installations, (ii) $6.0 million in higher compensation costs and (iii) an increase of $2.3 million in repair and maintenance costs, partially offset by a decrease of $3.0 million in rent and facility costs as a result of certain property acquisitions in 2007 and 2008. We anticipate that our U.S. cost of revenues will continue to increase in the foreseeable future to the extent that the occupancy levels in our U.S. IBX centers increase and as our newly-opened IBX centers or IBX center expansions commence operations more fully during 2009 and from our additional expansion activity currently taking place in the Los Angeles and New York metro areas. We expect U.S. cost of revenues to increase as we continue to grow our business.

Europe Cost of Revenues. Europe cost of revenues for the years ended December 31, 2008 and 2007 included $33.5 million and $7.6 million, respectively, of depreciation expense. Our Europe cost of revenues have increased over the course of 2008 as this region has grown due to our expansion efforts and we anticipate our Europe cost of revenues will continue to increase in future periods, as we sell out the available space in our existing data centers, as our newly-opened IBX centers or IBX center expansions commence operations more fully during 2009 and from our additional expansion activity currently taking place in the Amsterdam, Frankfurt, London and Paris metro areas. We expect Europe cost of revenues to increase as we continue to grow our business.

Asia-Pacific Cost of Revenues. Asia-Pacific cost of revenues for the years ended December 31, 2008 and 2007 included $17.6 million and $9.3 million, respectively, of depreciation expense. Growth in depreciation expense was due to our IBX center expansion activity. Excluding depreciation expense, the increase in Asia-Pacific cost of revenues was primarily the result of costs associated with our expansion projects and overall growth in connection with revenue growth, such as $4.2 million of higher utility costs arising from increased customer installations and revenues attributed to customer growth, as well as $2.5 million of additional rent

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expense associated with new leases in connection with our recently-opened IBX center expansions and with our additional expansion activity currently taking place in the Hong Kong, Singapore and Sydney metro areas. We expect Asia-Pacific cost of revenues to increase as we continue to grow our business.

Sales and Marketing Expenses. Our sales and marketing expenses for the years ended December 31, 2008 and 2007 were split among the following geographic regions (dollars in thousands):

U.S. Sales and Marketing Expenses. The increase in U.S. sales and marketing expenses was primarily due to an increase of $3.3 million in sales compensation costs as a result of revenue growth and $2.6 million of higher expenditures related to our branding initiatives. We expect U.S. sales and marketing expenses to increase as we continue to grow our business and invest further in various branding initiatives; however, as a percentage of revenues, we expect them to decrease.

Europe Sales and Marketing Expenses. Our Europe sales and marketing expenses for the years ended December 31, 2008 and 2007 included $6.0 million and $1.8 million of amortization expense related to customer contract intangible assets. Excluding amortization expense, our Europe sales and marketing expenses have grown over the course of 2008 as we grew this business and invested in various branding and integration initiatives. During the year ended December 31, 2008, we also recorded $1.3 million of bad debt expense in the Europe region due largely to integration of accounting policies in connection with internal control compliance initiatives. We expect Europe sales and marketing expenses to increase as we continue to grow our business; however, as a percentage of revenues, we expect them to decrease.

Asia-Pacific Sales and Marketing Expenses. The increase in Asia-Pacific sales and marketing expenses was primarily due to an increase in sales compensation over the prior period associated with the overall growth in this region and with expenditures related to our branding initiatives. We expect Asia-Pacific sales and marketing expenses to increase as we continue to grow our business; however, as a percentage of revenues, we expect them to decrease.

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General and Administrative Expenses. Our general and administrative expenses for the years ended December 31, 2008 and 2007 were split among the following geographic regions (dollars in thousands):

U.S. General and Administrative Expenses. The increase in U.S. general and administrative expenses was primarily due to (i) $7.9 million of higher compensation costs, including increases in general salary, bonuses and stock-based compensation, and headcount growth (259 U.S. general and administrative employees as of December 31, 2008 versus 220 as of December 31, 2007), (ii) an increase of $2.6 million in professional fees related to various consulting projects to support our growth and (iii) an increase in depreciation expense as a result of our continued investment in information technology systems to support our growth. Going forward, we expect U.S. general and administrative expenses to increase as we continue to scale our operations to support our growth; however, as a percentage of revenues, we expect them to decrease.

Europe General and Administrative Expenses. Our Europe general and administrative expenses for the years ended December 31, 2008 and 2007 included $7.8 million and $862,000, respectively, of stock-based compensation expense. Excluding stock-based compensation expense, our Europe general and administrative expenses have increased over the course of 2008 in connection with our growth and integration initiatives. We expect our Europe general and administrative expenses to increase in future periods as we continue to scale our operations to support our growth and in connection with various ongoing integration initiatives related to investments in systems and internal control compliance; however, as a percentage of revenues, we expect them to decrease.

Asia-Pacific General and Administrative Expenses. The increase in Asia-Pacific general and administrative expenses was primarily due to higher compensation costs, including general salary increases and bonuses. Going forward, we expect Asia-Pacific general and administrative expenses to increase as we continue to scale our operations to support our growth; however, as a percentage of revenues, we expect them to decrease.

Restructuring Charges. During the year ended December 31, 2008, we recorded a restructuring charge adjustment of $3.1 million from revised sublease assumptions on our two excess space leases in the Los Angeles and New York metro areas as a result of new information becoming available. During the year ended December 31, 2007, we recorded a restructuring charge adjustment of $407,000 from revised sublease assumptions for the excess space lease in the Los Angeles metro area as a result of new information becoming available. The original restructuring charge for these two leases was recorded in the fourth quarter of 2004 and totaled $17.7 million. We are contractually committed to these two excess space leases through 2015. In February 2009, we decided to utilize the space we previously abandoned in order to expand our original Los Angeles IBX center. Accordingly, we will reverse the restructuring reserve during the three months ended March 31, 2009 associated with the Los Angeles lease (see Note 17 of Notes to Consolidated Financial

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Statements in Item 8 of this Annual Report on Form 10-K). We estimate that this restructuring reserve reversal is approximately $5.7 million, which will be reflected in our financial statements for the three months ended March 31, 2009. Our excess space lease in the New York metro area will remain abandoned and continue to carry a restructuring charge.

Gains on Asset Sales. During the year ended December 31, 2007, we recorded a $1.3 million gain in connection with the sale of our Equinix mail service offering, which we sold for $1.7 million in gross cash proceeds. No gains on asset sales were recorded during the year ended December 31, 2008.

Interest Income. Interest income decreased to $7.4 million for the year ended December 31, 2008 from $15.4 million for the year ended December 31, 2007. Interest income decreased primarily due to lower yields on invested balances and lower average cash balances. The average yield for the year ended December 31, 2008 was 2.77% versus 5.08% for the year ended December 31, 2007. In addition, during the year ended December 31, 2008, we recorded realized losses from our investment portfolio, including a $1.5 million loss on one of our money market accounts as more fully described in Note 5 of Notes to Consolidated Financial Statements in Item 8 of this Annual Report on Form 10-K. We expect our interest income to decrease for the foreseeable future due primarily to lower yields on our investment portfolio and lower average cash balances.

Interest Expense. Interest expense increased to $55.0 million for the year ended December 31, 2008 from $27.3 million for the year ended December 31, 2007. The increase in interest expense was primarily due to new financings entered into during 2007 and 2008 consisting of (i) our $110.0 million Chicago IBX financing, which was drawn down during the construction period of the Chicago metro area IBX expansion project and which became fully drawn in March 2008, with an approximate interest rate of 4.19% per annum; (ii) our $250.0 million 2.50% convertible subordinated notes offering in March 2007; (iii) our approximately $91.0 million Asia-Pacific financing, of which approximately $63.2 million was drawn during 2008 and, which was fully drawn as of December 31, 2008, with an approximate blended interest rate of 3.69% per annum; (iv) our $396.0 million 3.00% convertible subordinated notes offering in September 2007; (v) our approximately $131.0 million European financing, of which approximately $72.7 million was drawn during 2008 leaving only approximately $2.9 million remaining available to draw, with an approximate blended interest rate of 4.39% per annum and (vi) our Netherlands financing of approximately $6.5 million, acquired as a result of the Virtu acquisition, with an approximate interest rate of 4.18% per annum. This increase was partially offset by the partial conversion of $13.1 million of our 2.50% convertible subordinated debentures in November 2008 that resulted in a decrease in interest expense. During the years ended December 31, 2008 and 2007, we capitalized $6.0 million and $7.7 million, respectively, of interest expense to construction in progress. Going forward, we expect to incur higher interest expense as we fully utilize or recognize the full impact of our existing financings to fund our expansion efforts and as we complete expansion efforts and cease to capitalize interest expense. In addition, commencing in 2009, interest expense will increase due to a new accounting pronouncement, FASB Staff Position No. APB 14-1, “Accounting for Convertible Debt Instruments That May Be Settled in Cash upon Conversion.” For further information, refer to “Recent Accounting Pronouncements” in Note 1 of Notes to Consolidated Financial Statements in Item 8 of this Annual Report on Form 10-K.

Other Income (Expense). For the year ended December 31, 2008, we recorded $1.3 million of other income, primarily attributable to foreign currency exchange gains during the year. For the year ended December 31, 2007, we recorded $3.0 million of other income, primarily due to foreign currency exchange gains including a foreign exchange gain of $1.5 million as a result of hedging a portion of the IXEurope acquisition purchase price with forward contracts.

Loss on Conversion and Extinguishment of Debt. In March 2007, we retired $54.0 million of our convertible subordinated debentures in exchange for approximately 1.4 million newly issued shares of our common stock. As a result, we recorded a $3.4 million loss on debt conversion in accordance with FASB No. 84, “Induced Conversions of Convertible Debt,” due to the inducement fee paid. In September 2007, a senior bridge loan was terminated unused and, as a result, we recorded a $2.5 million loss on debt extinguishment reflecting

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the immediate write-off of capitalized debt issuance costs to secure the senior bridge loan. As a result of these two events, during the year ended December 31, 2007 we recognized a total of $5.9 million of loss on debt conversion and extinguishment. During the year ended December 31, 2008, we did not record any loss on conversion or extinguishment of debt in our statements of operations.

Income Taxes. For the year ended December 31, 2008, we recorded $104.5 million of income tax benefits primarily due to recognition of deferred tax assets of $101.9 million and $6.1 million associated with our U.S. and Australian operations, respectively, partially offset by tax provisions from other jurisdictions. For the year ended December 31, 2007, we recorded $473,000 of income tax expense primarily attributable to our foreign operations. As of December 31, 2008, we had a total valuation allowance of $40.3 million against our deferred tax assets, which is attributable to certain of our foreign operations. Once we release this remaining valuation allowance, it will impact our results of operations in the periods such a determination is made. We have not paid any significant cash income taxes since inception and we do not expect to pay any significant cash income taxes during 2009. Going forward, primarily as a result of the recognition of our U.S. deferred tax assets, we will commence the recording of income tax expense at the expected effective blended tax rates.

As of December 31, 2008, we had total net deferred tax assets of $98.6 million consisting primarily of favorable temporary differences and net operating loss carryforwards, the majority of which are attributable to our U.S. operations. Approximately $195.0 million of future pretax earnings for financial reporting purposes would need to be generated to realize these favorable temporary differences associated with our U.S. operations. In addition, approximately $54.0 million of future taxable income would need to be generated in future years to realize these net operating loss carryforwards associated with our U.S. operations. We believe it is achievable based on our current level of pretax earnings and our profitability forecast for future years. Historically, the difference between the pretax earnings for financial reporting purposes and the taxable income for income tax purposes in our U.S. operations has primarily included temporary adjustments such as depreciation expense, stock-based compensation and capital lease expenses. The temporary differences either increase or decrease the pretax earnings for financial reporting purposes to arrive at the taxable income for income tax purposes. However, it is expected that these temporary differences will generally increase the taxable income in the foreseeable future. The majority of the net operating loss carryforwards for income tax purposes in our U.S. operations does not start to expire until 2023.

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Years Ended December 31, 2007 and 2006

Revenues. Our revenues for the years ended December 31, 2007 and 2006 were generated from the following revenue classifications and geographic regions (dollars in thousands):

U.S. Revenues. The period over period growth in recurring revenues was primarily the result of an increase in orders from both our existing customers and new customers during the period as reflected in the growth in our customer count and utilization rate, as discussed above, in both our new and existing IBX centers, as well as selective price increases in each of our IBX markets. During the year ended December 31, 2007, we recorded $15.3 million of revenues generated from our newly-opened IBX centers in the Chicago, New York, and Washington, D.C. metro areas.

Asia-Pacific Revenues. Our revenues from Singapore, the largest revenue contributor in this region, represented approximately 35% and 39%, respectively, of the regional revenues for the years ended December 31, 2007 and 2006. As in the U.S., Asia-Pacific revenue growth was due to an increase in orders from both our existing customers and new customers during the period as reflected in the growth in our customer count and utilization rate, as discussed above, in both our new and existing IBX centers, as well as selective price increases in each of our IBX markets. During the year ended December 31, 2007, we recorded $1.7 million of revenues generated from our new IBX center in Tokyo, which we acquired in December 2006, and $1.2 million from our IBX center expansion in Singapore.

Europe Revenues. Our revenues from the United Kingdom, the largest revenue contributor in this region, represented approximately 37% of the regional revenues for the year ended December 31, 2007.

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Cost of Revenues. Our cost of revenues for the years ended December 31, 2007 and 2006 were split among the following geographic regions (dollars in thousands):