Keystone Capital
Venture Capital and Private Equity PrincipalsIllinois, United States51-200 Employees
Keystone Capital is a Chicago-based investment firm that operates in the venture capital and private equity arena. Founded in 1994 to invest the personal capital of its partners in select businesses, it pursues long-term value by working closely with management to foster organic growth and pursue strategic acquisitions. The firm focuses on a diversified mix of sectors, including Technical Services, Professional and Technology-Enabled Services, Commercial & Industrial Services, Food & Beverage, Healthcare Service, and Industrial Technology. Keystone has completed more than 200 acquisitions, reflecting an active approach to building companies through add-on transactions and platform development. The company is based in Chicago, Illinois, and maintains a team described as mid-sized. In 2025, Keystone appointed Mike Measurement as CEO, marking a leadership transition while continuing its long-term investment approach.