AMG vs MMS Comparison

Affiliated Managers Group offers investment strategies to investors through its network of affiliates. The firm typically buys a majority interest in small to mid-size boutique asset managers, receiving a fixed percentage of revenue from these firms in return. Affiliates operate independently, with AMG providing strategic, operational, and technology support, as well as global distribution. At the end of June 2025, AMG's affiliate network—which includes firms like Abacus Capital and Pantheon dedicated to private markets (which accounted for 19% of AUM), AQR Capital and Capula Investment Management in liquid alternatives (24%), and Harding Loevner, Tweedy Browne, Parnassus, and Yacktman in equities, multi-asset, and bond strategies (57%)—had $771 billion in managed assets.

Maximus Inc designs, develops, and delivers programs enabling people to access vital government services. It translates health and human services public policy into operating models that achieve outcomes for governments at scale. The company covers a broad array of services, including the operation of large health insurance eligibility and enrollment programs; clinical services, including assessments, appeals, and independent medical reviews; and technology services. The company operates through the following segments: U.S. Federal Services, U.S. Services, and Outside the U.S. A majority of its revenue is derived from the U.S. Federal Services segment, which engages with various U.S. federal government agencies to deliver clinical services, maintenance services, and technology solutions.