Add-on Acquisition • Financial Services

Fiserv Acquires StoneCastle

On September 29, 2025, Fiserv acquired financial services company StoneCastle

Acquisition Context
  • This is Fiserv’s 8th transaction in the Financial Services sector.
  • This is Fiserv’s 40th transaction in the United States.

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M&A Deal Summary

Date September 29, 2025
Target StoneCastle
Sector Financial Services
Buyer(s) Fiserv
Deal Type Add-on Acquisition
Advisor(s) Keefe, Bruyette & Woods (Financial)

Target Company

StoneCastle

United States
StoneCastle enables its network of depository institutions, primarily community banks and credit unions, to easily access stable, cost-efficient deposit funding from thousands of businesses and enterprise customers holding cash balances.
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Buyer Overview 1

Buyer

Fiserv

Milwaukee, Wisconsin, United States

Category Company
Founded 1984
Sector Information Technology
Employees42,000
Revenue 20.5B USD (2024)
DESCRIPTION
Fiserv's corporate headquarters in Brookfield, Wisconsin.
Fiserv's corporate headquarters in Brookfield, Wisconsin.

Fiserv provides information management and electronic commerce systems for the financial services industry, offering integrated technology and services that create value and results for clients. Clients include banks, credit unions, and thrifts, billers, mortgage lenders and leasing companies, brokerage, and investment firms. Fiserv was founded in 1984 and is based in Milwaukee, Wisconsin.


Deal Context for Buyer #
Overall 46 of 46
Sector: Financial Services 8 of 8
Type: Add-on Acquisition 40 of 40
Country: United States 40 of 40
Year: 2025 3 of 3
PREVIOUS DEAL
DATE TARGET DEAL TYPE VALUE
2025-09-25 Smith Consulting Group

Lake Mary, Florida, United States

Smith Consulting Group is a consulting and advisory firm specializing in services for banks, credit unions, and other financial institutions. Smith Consulting Group is based in Lake Mary, Florida.

Buy -