The health insurance industry is dominated by five companies that own 46 percent of the market.
Here are the top five largest health insurance companies by membership:
- UnitedHealthcare
- Anthem
- Aetna
- Cigna
- Humana
5 largest health insurance companies by membership
UnitedHealthcare is the largest insurer in the U.S., according to a July 2023 report from Value Penguin.
