Grant Thornton Advisors to acquire consulting firm Stax

Wed, Aug 20, 2025, 6:39 AM 2 min read

Grant Thornton Advisors has revealed plans to acquire Stax, a global strategy consulting company specialising in commercial due diligence, value creation, and exit planning services.

Financial details of the deal have not been divulged by either of the companies.

Based in Boston, Massachusetts, Stax operates in significant financial markets and provides support for both buy-side and sell-side diligence related to mergers and acquisitions.

Stax’s services are tailored for private equity firms, PE-backed companies, hedge funds, and investment banks across a range of industries including software/technology, industrials, business services, healthcare, consumer, and the events ecosystem.

The firm employs a data-driven methodology that leverages advanced artificial intelligence to generate actionable insights for its clients.

Stax CEO Jayson Traxler said: “We are proud to have built a 30-year reputation for excellent client service, unique tech-enabled solutions and impressive growth.

“As part of Grant Thornton Advisors, those characteristics will endure — but with far greater scale, speed and amplification of our impact.

“We will be empowered to build on our unique strengths and insights, for the benefit of the leading PE firms, portfolio companies and investment banks.”

This acquisition aims to strengthen Grant Thornton Advisors' transaction advisory capabilities, expanding its expertise in mergers and acquisitions.

The firm currently has more than 600 relationships with private equity firms, including a significant portion of the top global players, and more than 1,600 clients backed by sponsors.

The transaction is anticipated to close in 2025, subject to customary conditions, and will result in approximately 300 employees from Stax joining Grant Thornton Advisors.

The combined entities will serve a large segment of the US Private Equity International 300.

Grant Thornton Advisors CEO Jim Peko said: “With this bold move, we’re taking our platform to new heights — combining Stax’s top-tier talent with our own industry-leading professionals, while broadening our offerings and further elevating our tech capabilities.

“Stax has a decades-long legacy delivering transformative value to clients — similar to our own 100-year history. Together, we will generate bold results for a PE client base stretching from the Americas across Europe to the Middle East.”

This acquisition aligns with the multinational platform that Grant Thornton Advisors initiated in January 2025, which has already included partnerships with various accounting and consulting firms across multiple jurisdictions.