About Us

Siebert Williams Shank & Co., LLC (SWS) is an independent non-bank financial services firm that offers investment banking, sales and trading, research, advisory, and asset management services. We provide customized, best-in-class solutions incorporating comprehensive financial advisory, capital raising and risk management guidance with the mission to afford the highest level of value-added services to our clients. Dually headquartered in New York and Oakland, our firm is comprised of approximately 120 diverse professionals spanning over 19 offices across the United States.

SWS serves a broad spectrum of clients, including corporations, governments, municipalities and institutional investors. Building enduring client partnerships through integrity, experience, and results is our priority.


We understand that the foundation of our customer relationships is trust. We also believe in being a constructive member of the communities in which we operate in order to enrich the lives of our employees and clients.


We have been uncompromising in building the best team of professionals to serve the needs of a wide range of clients, and to offer a broad range of services. Each member of our team brings their unique experiences to our client partnerships and interactions.


By valuing each relationship, we focus directly on client objectives to develop solutions and resolutions that help our clients obtain their goals.

SWS was formed in November 2019 to merge the complementary strengths and established track records of its predecessor firms—Siebert Cisneros Shank & Co., L.L.C., founded in 1996, and The Williams Capital Group, L.P. founded in 1994. SWS is wholly owned by Shank Williams Cisneros & Co., LLC.