Exhibit 99.1

Top Silicon Valley Financial Executive Joins the Equinix Board of Directors and
                           Will Chair Audit Committee

    FOSTER CITY, Calif.--(BUSINESS WIRE)--July 23, 2007--Equinix, Inc.
(Nasdaq:EQIX), the leading provider of network-neutral data centers
and Internet exchange services, today announced that Christopher
Paisley has joined Equinix's board of directors and will chair its
audit committee. The addition of Mr. Paisley will increase the size of
Equinix's board to eight members.

    Mr. Paisley has built his distinguished career as one of the top
financial executives in Silicon Valley. Until 2000, he served as
senior vice president of finance and chief financial officer of 3Com
Corporation, and during his 15-year tenure, company revenues grew from
$50 million to nearly $6 billion annually. Mr. Paisley is currently
the Dean's Executive Professor of Accounting and Finance in the Leavey
School of Business at Santa Clara University.

    "We are delighted to have Chris join Equinix's Board of
Directors," said Peter Van Camp, Executive Chairman of Equinix.
"Chris' exemplary financial credentials, his wealth of understanding
of technology companies and his deep knowledge of today's complex
financial accounting regulations will bring strong oversight to our
audit committee as well as contribute to the overall leadership
provided by our outstanding board of directors."

    Prior to 3Com, Mr. Paisley served as chief financial officer and
vice president of finance at Ridge Computers, and he began his career
at Hewlett-Packard. He earned his MBA from the University of
California at Los Angeles and his bachelor's degree in Economics from
University of California at Santa Barbara. Mr. Paisley currently
serves on the board of directors for two other public companies:
Electronics for Imaging and Volterra Semiconductor Corporation. He
previously served on eight other company boards and has chaired the
audit committee for nine of the ten boards on which he has served.

    About Equinix

    Equinix is the leading global provider of network-neutral data
centers and Internet exchange services for enterprises, content
companies, systems integrators and network services providers. Through
the company's Internet Business Exchange(TM) (IBX(R)) centers in 10
markets in the U.S. and Asia, customers can directly interconnect with
every major global network and ISP for their critical peering, transit
and traffic exchange requirements. These interconnection points
facilitate the highest performance and growth of the Internet by
serving as neutral and open marketplaces for Internet infrastructure
services, allowing customers to expand their businesses while reducing
costs.

    This press release contains forward-looking statements that
involve risks and uncertainties. Actual results may differ materially
from expectations discussed in such forward-looking statements.
Factors that might cause such differences include, but are not limited
to, the challenges of acquiring, operating and constructing IBX
centers and developing, deploying and delivering Equinix services; a
failure to receive significant revenue from customers in recently
built out data centers; failure to complete any financing arrangements
contemplated from time to time; competition from existing and new
competitors; the ability to generate sufficient cash flow or otherwise
obtain funds to repay new or outstanding indebtedness; the loss or
decline in business from our key customers; the results of any
litigation relating to past stock option grants and practices; and
other risks described from time to time in Equinix's filings with the
Securities and Exchange Commission. In particular, see Equinix's
recent quarterly and annual reports filed with the Securities and
Exchange Commission, copies of which are available upon request from
Equinix. Equinix does not assume any obligation to update the
forward-looking information contained in this press release.

    Equinix and IBX are registered trademarks of Equinix, Inc.
Internet Business Exchange is a trademark of Equinix, Inc.

    CONTACT: K/F Communications, Inc.
             David Fonkalsrud, 415-255-6506
             dave@kfcomm.com