Aetna is UnitedHealth Group's top competitor. Aetna is a Private company that was founded in Hartford, Connecticut in 1853. Aetna operates in the Life & Health Insurance industry. Aetna has 352,050 fewer employees vs. UnitedHealth Group.
Cigna Healthcare has been one of UnitedHealth Group's top competitors. Cigna Healthcare is headquartered in Bloomfield, Connecticut, and was founded in 1982. Cigna Healthcare is in the Life & Health Insurance field. Cigna Healthcare generates 12% the revenue of UnitedHealth Group.