SAN MATEO, Calif.--(BUSINESS WIRE)--Aug. 7, 2006--Keynote Systems (Nasdaq:KEYN), the global leader in Internet and mobile test and measurement services, today announced that Drew Hamer, CFO and vice president of finance, will be presenting at the B. Riley & Co. 4th Annual New York Investor Conference on Thursday, August 10 at Le Parker Meridien Hotel located at 118 West 57th Street in New York City. Keynote's presentation is scheduled to be delivered from 12:35 to 1:10 p.m., followed by a short Q&A session.

The B. Riley & Co. conference will feature presentations from approximately 30 companies with an average market cap of approximately $228 million. The companies will represent industries including retail, semiconductors, technology hardware, software, IT services, communications, media and healthcare. For more information on the conference, the most current list of presenting companies, or registration information, visit www.brileyco.com.

About B. Riley & Co.

Founded in 1997, B. Riley & Co. is a NASD member firm providing research and trading ideas to institutional clients and high net worth individuals, and investment banking services to a wide range of middle market private and public companies. B. Riley is headquartered in Los Angeles and maintains offices in Newport Beach, California, San Francisco and New York. It is also a member of the SIPC. For more information, please visit www.brileyco.com.

About Keynote

Founded in 1995, Keynote Systems (Nasdaq "KEYN") is the global leader in Internet and mobile test and measurement services. Keynote helps approximately 2,600 corporate customers become "the best of the best" online. The business premise supporting Keynote's mission is: "Online businesses can't manage what they don't measure." As an independent and trusted third-party, Keynote provides IT and marketing executives with unbiased benchmarking data, competitive analysis and operational metrics from the customer perspective. This data measures service levels and customer experience of Web sites, broadband services and mobile communications.

Known as The Internet Performance Authority(R), Keynote manages a market-leading infrastructure of 2,100 measurement computers and mobile devices in over 120 locations and 70+ metropolitan areas worldwide that assess service levels and a panel of over 160,000 consumers who participate in interactive Web site tests that assess user experience. These online user experience tests capture customer attitude and behavior to answer the critical "why" behind the "what." Keynote's geographically distributed measurement services, on-site monitoring appliances, competitive intelligence and custom studies ensure that its customers outpace their competitors in online service levels and overall user experience.

Keynote Systems, Inc. is headquartered in San Mateo, California and can be reached at www.keynote.com or by phone in the U.S. at 650-403-2400.

Keynote, The Internet Performance Authority and Perspective are registered trademarks of Keynote Systems, Inc. Other trademarks are the property of their respective owners. (C) 2006 Keynote Systems, Inc.

CONTACT:
Keynote Systems, Inc.
Dan Berkowitz, 650-403-3305 (Public Relations)
dberkowitz@keynote.com
Moriah Shilton, 415-433-3777 (Investor Relations)
moriah@lhai-sf.com
Kirsten Chapman, 415-433-3777 (Investor Relations)

SOURCE:
Keynote Systems, Inc.