Press Releases

FOR IMMEDIATE RELEASE

Forrester Holds Investor Day 2009

Cambridge, Mass., June 15, 2009 . . . Forrester Research, Inc. (Nasdaq: FORR) holds Investor Day 2009 for sell-side analysts and institutional investors on Tuesday, June 16, 2009 at its corporate headquarters in Cambridge, MA. While attendance to the event is by invitation only, Investor Day will be webcast live on www.forrester.com (http://www.thomson-webcast.net/us/dispatching/?event_id=44f2fbfabde5c654d7ce166310f4d4b6&portal_id=9bdc51a02efc622e94e3b31134d367e2) and a replay will be available until September 16, 2009.

About Forrester Research

Forrester Research, Inc. (Nasdaq: FORR) is an independent research company that provides pragmatic and forward-thinking advice to global leaders in business and technology. Forrester works with professionals in 19 key roles at major companies providing proprietary research, consumer insight, consulting, events, and peer-to-peer executive programs. For more than 25 years, Forrester has been making IT, marketing, and technology industry leaders successful every day. For more information, visit www.forrester.com.

Contact:

Russell Sweeney
Investor Relations
Forrester Research, Inc.
+1.617.613.6350
investor@forrester.com