- AARP
- Aetna
- American Family Insurance
- American National Insurance Company
- Amerigroup
- Anthem Blue Cross and Blue Shield
- Assurant
- Blue Cross and Blue Shield Association
- Centene Corporation
- Cigna
- Coventry Health Care
- EmblemHealth
- Fortis
- Golden Rule Insurance Company
- Group Health Cooperative
- GHI
- Health Net
- HealthMarkets
- HealthSpring
- Highmark
- Humana
- Independence Blue Cross
- Kaiser Permanente
- Kaleida Health
- LifeWise Health Plan of Oregon
- Medical Mutual of Ohio
- Molina Healthcare
- Premera Blue Cross
- Principal Financial Group
- The Regence Group
- Shelter Insurance
- State Farm
- Thrivent Financial for Lutherans
- UnitedHealth Group
- Unitrin
- Universal American Corporation
- WellCare Health Plans
- WellPoint
Medicare[edit]
Main article: Medicare (United States)
- Aetna
- American Family Insurance
- Bankers Life and Casualty
- Conseco
- Kaiser Permanente
- Mutual of Omaha
- Premera Blue Cross
- Thrivent Financial for Lutherans
- Tricare
Supplemental insurance[edit]
- Aflac
- Allstate
- American Fidelity Assurance
- Assurant
- Colonial Life & Accident Insurance Company
- Combined Insurance
- Conseco
- Liberty National Life Insurance Company
- MEGA Life and Health Insurance
- Mutual of Omaha
- State Farm Insurance
- List from Wikipedia
