TWPG Thomas Weisel Prtns Grp (MM)

Thomas Weisel Partners Group, Inc. (NASDAQ: TWPG), a global growth-focused investment bank, will release its 2009 first quarter financial results after the close of the market on Wednesday, April 29, 2009. A conference call to review the results will commence at 5:00 p.m. Eastern time (2:00 p.m. Pacific time) also on Wednesday, April 29, 2009. The conference call may include forward-looking statements, including guidance as to future results.

All interested parties are invited to listen to Thomas Weisel Partners' Chairman and Chief Executive Officer, Thomas W. Weisel, President and Chief Operating Officer, Lionel F. Conacher, and Chief Financial Officer, Shaugn S. Stanley, by dialing (866) 746-9599 (domestic) or (702) 696-4728 (international). The confirmation code for both the domestic and international lines is: 95288543.

A live audio webcast of the call, as well as the company's results, will be available through the Investor Relations/Webcasts section of the company's website, www.tweisel.com, which can also be accessed directly at:

http://www.tweisel.com/AboutUs/InvestorRelations/Webcasts

To listen to the live audio webcast of the call, please go to the website at least 15 minutes early to register, download and install any necessary audio software. For those who cannot listen to the live broadcast, a replay of the conference call will be available through the above-referenced website beginning one hour following the completion of the call through May 15, 2009.

About Thomas Weisel Partners Group, Inc.

Thomas Weisel Partners Group, Inc. is an investment bank, founded in 1998, focused principally on the growth sectors of the economy. Thomas Weisel Partners generates revenues from three principal sources: investment banking, brokerage and asset management. The investment banking group is comprised of two disciplines: corporate finance and strategic advisory. The brokerage group provides equity and convertible debt securities sales and trading services to institutional investors, and offers brokerage, advisory and cash management services to high-net-worth individuals and corporate clients. The asset management group consists of: private equity, public equity and distribution management. Thomas Weisel Partners is headquartered in San Francisco with additional offices in Baltimore, Boston, Calgary, Chicago, Denver, New York, Portland, Silicon Valley, Toronto, London and Zurich. For more information, please visit www.tweisel.com.