StoneCastle Email Format

Financial ServicesNew York, United States51-200 Employees

StoneCastle is a financial services firm based in New York City and now part of Fiserv. Founded in 2003, it connects banks with institutional and retail investors through cash management, insured deposits, and capital investment solutions. Along with its affiliates, the company oversees more than $22 billion in assets under administration, drawing on its network of banks and its analytical capabilities to support these offerings.

The company is employee-owned and managed, with ownership backing from the Canadian Imperial Bank of Commerce and Charlesbank Capital Partners. In 2025, Fiserv acquired StoneCastle Partners, LLC, integrating its platform into a broader payments and financial services technology group.

Sign up for free to view info

Company overview Employee directory