Grant Thornton Stax

Founded in 1994, Stax is now branded as Grant Thornton Stax within Grant Thornton’s advisory platform. It serves private equity firms, portfolio companies, hedge funds, investment banks, and corporations across the investment lifecycle.

Its core work includes buy-side commercial due diligence, market sizing and segmentation, competitive analysis, value-creation planning, pricing, go-to-market strategy, operational improvement, and exit planning. The firm combines consulting with data and analytics, often supporting time-sensitive investment decisions.

Grant Thornton Stax is especially strong in private-equity-oriented commercial analysis: testing investment theses, assessing market and customer dynamics, identifying growth opportunities, and translating diligence findings into practical post-close actions. Its listed locations are Boston, Chicago, New York City, London, and Colombo.