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.
Top Health Insurance Companies:
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: National Association of Insurance Commissioners