​Callan LLC, founded in 1973 and headquartered in San Francisco, is one of the largest independently owned investment consulting firms in the U.S. The firm offers a range of services, including strategic planning, performance and risk monitoring, manager evaluation and selection, alternatives consulting, and implementation solutions. Callan serves institutional investors such as pension plans, endowments, foundations, and insurance assets. The company is employee-owned, emphasizing client-focused consulting and proprietary research.