UnitedHealthcare Group is the country's largest insurance company by both total revenue and lives covered, according to ValuePenguin, a resource for consumers looking to make more informed financial decisions.
The biggest health insurance companies in 2020, ranked by revenue:
1. UnitedHealthcare: $201 billion
2. Anthem: $90 billion
3. Aetna: $60.6 billion
4. Humana: $53.7 billion
5. Centene: $48.3 billion
6. Cigna: $41.6 billion
7. Molina Healthcare: $18.8 billion
8. WellCare Health Plans: $16.9 billion