Grant Thornton Advisors adds CBIZ
The all-cash transaction creates the fifth largest U.S. professional services, tax and advisory provider, with combined domestic revenue exceeding $5 billion.
New Mountain Capital-backed Grant Thornton Advisors LLC has agreed to acquire CBIZ, Inc., a professional services, tax and advisory provider, in an all-cash transaction valued at $5 billion.
CBIZ shareholders will receive $55.00, representing a premium of approximately 54% to the 30-day volume-weighted average share price.
The combination is expected to create the fifth largest U.S. firm in the sector, with combined domestic revenue exceeding $5 billion.
The sponsor, which led a recapitalization of Grant Thornton in May 2024, is making an incremental equity investment to support the deal.
Post-closing, CBIZ's Benefits and Insurance Services segment will be separated into a new standalone company backed by New Mountain.
Deal facts
- Target
- CBIZ
- Acquirer
- Grant Thornton Advisors
- Backed by
- New Mountain Capital
- Deal type
- Add-on
- Headquarters
- United States
- Announced
- Wednesday, July 29, 2026
Sources
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