Thomas Weisel Partners Group, Inc. Announces New Hires in Investment

Senior Additions to Healthcare and Telecommunications Services SAN FRANCISCO, CA -- (MARKET WIRE) -- 06/24/08 -- Thomas Weisel Partners Group, Inc. (NASDAQ: TWPG) (TSX: TWP), a growth sector focused investment bank, announced the hiring of Jason Moran and Ralph Sutton as Managing Directors focused on the Healthcare sector and Robert Nabholz as a Managing Director focused on Telecommunications Services for Investment Banking. With over 12 years of investment banking experience, Jason Moran will focus on the biotechnology, specialty pharmaceutical and molecular diagnostics industry sub-sectors. Mr. Moran will be based in San Francisco and was formerly a Managing Director at Piper Jaffray & Co. Mr. Moran is joined by Managing Director, Ralph Sutton, who has over 15 years of investment banking experience and most recently was a Managing Director at Bear Stearns. Based in New York, Mr. Sutton will focus on the medical device and medical technology industry sub-sectors. Mr. Moran and Mr. Sutton will continue to broaden TWP's efforts to provide strategic advisory and capital raising services within the Healthcare sector. Thomas Weisel Partners recently announced the hiring of Raj Denhoy as a Director in the Research department who will lead coverage in the medical devices sub-sector. Building on our Software, Media & Telecom banking practice, Robert Nabholz joins an established team of investment banking professionals. Based in New York, Mr. Nabholz brings over 20 years of industry experience to Thomas Weisel Partners. Most recently, Mr. Nabholz was a Senior Managing Director in the Technology, Media & Telecom group at Bear Stearns. "The addition of Jason Moran, Ralph Sutton and Bob Nabholz significantly enhances the breadth and depth of our established healthcare and telecom efforts," said Bill McLeod, Co-Head of Investment Banking at Thomas Weisel Partners. "We are confident that their respective industry experience, significant relationships and product expertise will contribute to the growth of our investment banking franchise." "Thomas Weisel Partners is deeply committed to providing a world-class offering to companies in both healthcare and telecom as an integral part of our broad investment banking practice," added Brad Raymond, Co-Head of Investment Banking at Thomas Weisel Partners. 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 Group, Inc. 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, Cleveland, Denver, New York, Portland, Silicon Valley, Toronto, London, Mumbai and Zurich. For more information, please visit Investor Relations Contact: Deborah Lightfoot 415-364-2500 Media Contact: Crystal Odessky 415-364-2500