FMS vs AMG Comparison

Fresenius Medical Care is the largest dialysis company in the world, treating nearly 300,000 patients from about 3,600 clinics worldwide as of December 2025. In addition to providing dialysis services, the firm is a leading supplier of dialysis products, including machines, dialyzers, and concentrates. Fresenius accounts for about 35% of the global dialysis products market, creating the world's only fully integrated dialysis business. Services account for about three-fourths of sales, while the balance is generated from medical technology products that enable dialysis treatments.

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 2026, AMG's affiliate network—which includes firms like Abacus Capital and Pantheon dedicated to private markets (which accounted for 16% of AUM), AQR Capital and Capula Investment Management in liquid alternatives (31%), and Harding Loevner, Tweedy Browne, Parnassus, and Yacktman in equities, multi-asset, and bond strategies (53%)—had $942.4 billion in managed assets.