Thomas Weisel Partners Group, Inc. (TWPG) is an investment bank focused principally on growth companies and growth investors. The Company operates in a single segment and its revenues are generated by providing financial services that include investment banking, brokerage, and research and asset management. In January 2008, the Company completed its acquisition of Westwind Capital Corporation, an independent, institutional investment bank focused on growth companies and growth investors, particularly in the energy and mining sectors. The Company has offices located at the United States, Canada and Europe. The Company’s business is organized into four service offerings: investment banking, brokerage, and equity research and asset management. Its subsidiaries include Thomas Weisel Capital Management LLC, Thomas Weisel Partners LLC, Thomas Weisel Asset Management LLC, TW Asset Management LLC and Thomas Weisel Global Growth Partners LLC.