Grant Thornton US adds France, Spain, and Belgium member firms
Grant Thornton US has continued its private equity-backed expansion with the acquisition of the Grant Thornton member firms for France, Spain, and Belgium.
New Mountain Capital in March 2024 acquired Grant Thornton US, the largest member firm of the Grant Thornton International network. Since then, the private equity firm has bolted on numerous firms, including several Grant Thornton country member firms.
The acquisition of France, Spain, and Belgium will bring together 11 Grant Thornton member firms under the unified platform (which has separate firms for attest and non-attest services).
The previous additions are Grant Thornton Ireland, UAE, Luxembourg, Cayman, Netherlands, Switzerland, Liechtenstein, and Channel Islands.
“We couldn’t be more pleased to admit France, Spain, and Belgium to the global unified platform. The visionary leadership of these firms embodies the best of Grant Thornton, and today’s news is yet another example of our commitment to invest in people, technology and expanded capabilities for the ultimate benefit of Grant Thornton’s clients,” said Andre Moura and Nikhil Devulapalli, managing directors at New Mountain Capital. “We’re just getting started.”
Grant Thornton US also this year bolted on Stax, a Boston-based M&A consulting firm, and Auxis, a Fort Lauderdale, FL-based business process outsourcing firm.
Grant Thornton France has 2,800 employees, while Spain has 900 employees and Belgium has 250 employees.
Prior to the deal, which is slated to complete in the coming weeks, Grant Thornton US had approximately 13,000 people across the Americas and EMEA regions.
The unified platform, which comprises Grant Thornton LLP for attest services and Grant Thornton Advisors LLC for non-attest services, remains part of Grant Thornton International.

