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Wed, Jul 29, 2026
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Add-on·Financial/Accounting / Tax·July 29, 2026

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.

Takeaways

  • CBIZ is a professional services, tax and advisory provider.
  • Grant Thornton Advisors is acquiring CBIZ with backing from New Mountain Capital.
  • The.
BuyerGrant Thornton Advisors
TargetCBIZ
SponsorNew Mountain Capital
TypeAdd-on
GeographyUnited States
IndustryFinancial
Sub-sectorAccounting / Tax

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.