Grant Thornton Multinational Platform Adds Grant Thornton Switzerland/Liechtenstein and Grant Thornton Channel Islands

New Mountain Capital Makes Growth Investment in Grant Thornton LLP

March 15, 2024

Accounting & Tax

New Mountain Capital has made a growth investment in Grant Thornton LLP to accelerate the firm's business strategy, support targeted investments in talent, technology and infrastructure, and enable strategic acquisitions. The transaction (subject to regulatory approvals) will adopt an alternative practice structure separating attest and non-attest services, and is expected to close in the second quarter of 2024.

Grant Thornton Advisors Acquires Stax

September 22, 2025

Consulting

Grant Thornton Advisors LLC has acquired Stax, a global strategy consulting firm specializing in commercial due diligence, value creation and exit-planning services. The deal (supported by New Mountain Capital) adds approximately 300 Stax professionals to Grant Thornton Advisors' multinational transaction advisory platform; Blue Point Capital Partners exited the investment.

Guidehouse (Veritas Capital-backed) Acquires Grant Thornton LLP's Public Sector Advisory Practice

August 22, 2022

Consulting

Guidehouse, a Veritas Capital portfolio company, has acquired Grant Thornton LLP’s Public Sector Advisory practice. The deal adds Grant Thornton’s federal, state and local government consulting professionals and strengthens Guidehouse’s capabilities in finance, human-capital management, IT, data analytics and performance management.

Grant Thornton Advisors Acquires Auxis

September 2, 2025

IT Services

Grant Thornton Advisors LLC has completed its acquisition of Auxis, a nearshore outsourcing and business-modernization firm, bringing over 1,400 professionals and expanded automation and shared-services capabilities into Grant Thornton's advisory platform. The deal strengthens Grant Thornton Advisors' multinational advisory offering across the United States, Costa Rica and Colombia and bolsters its capabilities in AI, intelligent automation and tech-enabled shared services.

Stirling Square Acquires Majority Stake in Gestión Tributaria Territorial (GTT) from AnaCap

June 7, 2023

Software

Stirling Square Capital Partners has acquired a majority stake in Gestión Tributaria Territorial (GTT), a Spain-headquartered tax software provider, from AnaCap, which will remain invested as a minority alongside GTT management. Stirling Square plans to support GTT by investing in its software platform, diversifying product offerings and pursuing strategic acquisitions to accelerate growth across Europe.

The Channel Company Acquires Lauchlan

October 4, 2022

Marketing & Advertising

The Channel Company, a portfolio company of EagleTree Capital, has acquired Lauchlan, a U.S.-based full-service marketing agency focused on the technology industry. The acquisition is intended as a capability-expanding add-on to scale creative and digital marketing services globally and accelerate time-to-market for clients across The Channel Company's platform.