The merger to create Siebert Williams Shank & Co. LLC, America’s top ranked women- and minority-owned investment bank, closed on Tuesday.
Suzanne Shank is the president and chief executive officer of the combined firm. Christopher Williams serves as chairman of the board of directors and Henry Cisneros is vice chairman.

The combined firm’s other equity holders include Janice Savin Williams, Sean P. Duffy, William C. Thompson, Gary Hall, Jonathan W. Levin, DiAnne Calabrisotto, David Coard, and David Finkelstein.
Paul, Weiss, Rifkind, Wharton & Garrison LLP served as legal advisor to Siebert Cisneros Shank. Sidley Austin LLP served as legal advisor to Williams Capital.
The combined company will leverage each firm’s experience and industry positions in municipal and corporate underwriting, as well as debt and equity sales and trading.