Top Health Insurance Companies

Best? Not necessarily. But these health insurers have the biggest market share.

The largest 125 U.S. health insurers collected some $744 billion in 2013 premiums, the most recent annual data available. The top 25, ranked below by market share, accounted for nearly two-thirds of the total. Data were provided by the National Association of Insurance Commissioners, whose members direct the state agencies that license insurance companies. Note: Large insurers don't necessarily offer the best health insurance. Visit Best Health Insurance Plans to find the best plan for your needs.

   

Rank Insurer

1             UnitedHealth Group

2             Kaiser Foundation Group

3             Wellpoint Inc. Group

4             Aetna Group

5             Humana Group

6             HCSC Group

7             Cigna Health Group

8             Highmark Group

9             Blue Shield of California Group

10           Independence Blue Cross Group

11           Centene Corp Group

12           HIP Insurance Group

13           BCBS of New Jersey Group

14           BCBS of Michigan Group

15           Guidewell Mutual Holdings Group

16           California Physicians' Service

17           Wellcare Group

18           Carefirst Inc. Group

19           Health Net of California, Inc.

20           Molina Healthcare Inc. Group

21           UHC of California

22           Lifetime Healthcare Group

23           BCBS of Massachusetts Group

24           Metropolitan Group

25           Cambia Health Solutions Inc.

Source: NationalAssociation of Insurance Commissioners