Private company

Thomas Weisel Partners

Logo: The logo may be obtained from Thomas Weisel Partners., Non-free logo, via Wikipedia3

U.S. growth focused investment banking firm

Thomas Weisel Partners Group, Inc., also known as TWP or Weisel, is a U.S. growth focused investment banking firm headquartered in San Francisco, California. The firm was launched in January 1999 by Thom Weisel and other personnel from the former Montgomery Securities.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1999Founded1

Thomas Weisel Partners Group, Inc., also known as TWP or Weisel, is a U.S. growth focused investment banking firm headquartered in San Francisco, California. The firm was launched in January 1999 by Thom Weisel and other personnel from the former Montgomery Securities.2

Timeline

  1. 1999Founded Founded1

Sources

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