Clearsight Advises Grant Thornton in its Acquisition of Stax

Clearsight Advisors, Inc. (“Clearsight”) is pleased to announce that it served as the exclusive financial advisor to Grant Thornton Advisors LLC (“The Company” or “Grant Thornton Advisors”), a portfolio company of New Mountain Capital (NMC) on its acquisition of Stax, a portfolio company of BluePoint Capital Partners. The Clearsight team included Joel Kallet, Brendan Curran, and Jake Lipman. Read more from Grant Thornton here:

“Grant Thornton Advisors LLC (Grant Thornton Advisors) has closed its transaction to acquire Stax, a leading strategy consulting firm specializing in commercial due diligence, value creation and exit-planning services for private equity (PE) firms, as well as their portfolio companies and advisers.

The transaction, which was previously announced on August 19, adds Stax’s approximately 300 team members to the Grant Thornton Advisors multinational platform, stretching from the Americas across Europe to the Middle East.

The acquisition elevates U.S.-headquartered Grant Thornton Advisors’ market-leading transaction advisory team by enhancing the breadth and depth of its M&A capabilities. Together, Stax and Grant Thornton Advisors now service almost 70% of the U.S.-based Private Equity International 300.

Three-decade-old Stax has grown rapidly in recent years, while maintaining high client-retention rates and lengthy stakeholder relationships. Its strength comes from serving many of the leading players in large-cap and middle-market PE, alternative investments and investment banking.

Grant Thornton Advisors established its multinational platform in January 2025. To date, transactions have been announced with several full-service accounting and consulting firms to join the platform, including those in Ireland, the UAE, Switzerland/Liechtenstein, the Netherlands, Luxembourg, the Cayman Islands and the Channel Islands. Additionally, Grant Thornton Advisors recently acquired Auxis, a U.S.-based leader and pioneer in outsourcing and business modernization services — powered by AI and automation.

The platform is backed by an investor group led by New Mountain Capital, a growth-oriented investment firm with approximately $55 billion in assets under management.