Signature Bank engages in the provision of commercial bank services. It operates through the Commercial Banking and Specialty Finance segments. The Commercial Banking segment comprises of commercial real estate lending, commercial and industrial lending, and commercial deposit gathering activities. The Specialty Finance segment consists of financing and leasing products. The company was founded by John Tamberlane, Scott Aaron Shay, and Joseph J. DePaolo in September 2000 and is headquartered in New York, NY.