Thomas Weisel Partners Group, an investment bank, provided investment banking, brokerage services, research, and asset management services. The company's investment banking services included corporate finance and strategic advisory services. The firm offered equity research services in the technology, consumer, healthcare, internet, media and telecom, energy, and metals and mining sectors. Founded in 1998 and headquartered in San Francisco, California, the firm operates across the United States, Canada, and Europe. Since July 1, 2010, the firm operates as a subsidiary of Stifel Financial Corp.