Milwaukee-based Fiserv is acquiring StoneCastle Cash Management, a move Fiserv said will expand its role as a source of deposits for community banks..The deal is expected to close by the first quarter of 2026. Financial terms of the deal have not been disclosed. Fiserv is expected to integrate StoneCastle’s deposit products into its core banking, digital banking, payments and cash-management ecosystem. The deal also supports Fiserv’s plans to help institutions manage deposits linked to its FIUSD stablecoin initiative.Founded in 2009, StoneCastle connects business and enterprise customers with FDIC-insured depository institutions. Its network is intended to help banks access stable funding while depositors with safety and liquidity.“Acquiring StoneCastle is an important step forward in our strategy to help financial institutions optimize their balance sheets, which will enable them to do more in the communities they serve,” said Fiserv Head of Financial Solutions Andrew Gelb.Fiserv Chief Operating Officer Takis Georgakopoulos said the deal will set the company apart in core banking by enabling institutions to custody cash supporting stablecoin issuance and accelerate innovation across the financial system.StoneCastle already works with more than 300 banks on Fiserv’s core systems and leverages Finxact for ledger services in its digital asset business. StoneCastle Partners Founder and CEO Joshua Siegel said joining Fiserv will broaden the company’s reach and “deliver even greater value through a unified, modern platform.”New York City-based Keefe, Bruyette & Woods advised StoneCastle Partners in the deal. Fiserv recently also announced its acquisition of Lake Mary, Fla.-based Smith Consulting Group. The acquisition is intended to strengthen Fiserv’s core banking and advisory capabilities, adding expertise in system conversions, implementations and consultative support for platforms such as DNA, Signature, Bank Intelligence and digital banking solutions.Fiserv, a Fortune 500 company, provides technology solutions for payments, banking, e-commerce and merchant services worldwide.
