Top Ten U.S. Health Insurance Companies by Market Share

  1. UnitedHealth: 14%
  2. Kaiser Permanente: 8%
  3. Anthem: 6%
  4. Centene: 6%
  5. Humana: 5%
  6. CVS/Aetna: 5%
  7. HCSC: 3%
  8. Cigna Health: 2%
  9. Molina Healthcare: 1%
  10. Independence Health Group: 1%
Notes: Based on data from "2020 Market Share Reports," by the National Association of Insurance Companies