List of U.S. Insurance Companies
| Company Name | Specialties |
|---|---|
| 21st Century Insurance | General |
| AARP | Major Medical |
| Accident Fund | Workmans Comp |
| Acuity Insurance | General |
| Aetna | General, Major Medical, Medicare |
| Aflac | General, Supplemental |
| Alleghany Corporation | General |
| Allied Insurance | General |
| Allstate | General, General, Supplemental |
| American Automobile Association | General |
| American Family Insurance | General, General, Major Medical, Medicare |
| American Fidelity Assurance | General, Supplemental |
| American Income Life Insurance Company | General |
| American International Group | General, Workmans Comp |
| American National Insurance Company | General, Major Medical |
| Amerigroup | Major Medical |
| Ameritas Life Insurance Company | General |
| Amica Mutual Insurance | General, General |
| Anthem Blue Cross and Blue Shield | Major Medical |
| Applied Underwriters | General |
| Arbella Insurance Group | General |
| Assurant | General, Major Medical, Supplemental |
| Auto-Owners Insurance | General |
| AXA Equitable Life Insurance Company | General, General |
| Bankers Life and Casualty | General, Medicare |
| Bankers Life and Casualty Company | General |
| Berkshire Hathaway | General |
| Bird Insurance | General |
| Blue Cross and Blue Shield Association | Major Medical |
| California Casualty | General |
| Centene Corporation | Major Medical |
| Chartis | General |
| Chubb Corp. | General |
| Cigna | Major Medical |
| Cincinnati Financial Corporation | Workmans Comp |
| Cincinnati Insurance Company | General |
| CNA Financial | General |
| Colonial Life & Accident Insurance Company | General, Supplemental |
| Combined Insurance | General, Supplemental |
| Commerce Insurance Group | General |
| Conseco | General, General, Medicare, Supplemental |
| Country Financial | General |
| Coventry Health Care | Major Medical |
| Elephant.com | General |
| EmblemHealth | Major Medical |
| Encompass Insurance Company | General |
| Erie Insurance Group | General, Workmans Comp |
| Esurance | General |
| Evergreen USA RRG | General |
| Farmers Insurance Group | General, General |
| Federated Mutual Insurance Company | General |
| Fidelity | General |
| First Insurance Company of Hawaii | General |
| First_Catholic_Slovak_Ladies_Association | General |
| FM Global | General |
| Fortis (finance) | Major Medical |
| GAINSCO | General |
| GEICO | General |
| General Re | General |
| Genworth Financial | General, General |
| GMAC Insurance | General |
| Golden Rule Insurance Company | Major Medical |
| Gracy Title Company | General |
| Group Health Cooperative | Major Medical |
| Group Health Incorporated | Major Medical |
| GUARD Insurance Group | Workmans Comp |
| Guardian Life Insurance Company of America | General |
| GuideOne Insurance | General |
| Hanover Insurance | General, Workmans Comp |
| HCC Insurance Holdings | General |
| Health Net | Major Medical |
| HealthMarkets | Major Medical |
| HealthSpring | Major Medical |
| Highmark | Major Medical |
| Humana | Major Medical |
| Independence Blue Cross | Major Medical |
| Infinity Property & Casualty Corporation | General |
| ING Group | General |
| IntelliQuote Insurance Services | General |
| Jackson National Life | General, General |
| John Hancock Insurance | General, General |
| K&K Insurance | General |
| Kaiser Permanente | Major Medical, Medicare |
| Kaleida Health | Major Medical |
| Kansas City Life Insurance Company | General |
| Kentucky Farm Bureau | General |
| Knights of Columbus | General |
| Liberty Mutual | General, Workmans Comp |
| Liberty National Life Insurance Company | Supplemental |
| LifeWise Health Plan of Oregon | Major Medical |
| Lincoln National Corporation | General, General |
| Major Medical | Major Medical |
| Markel Corporation | General |
| MassMutual Financial Group | General |
| Medical Mutual of Ohio | Major Medical |
| Medicare | Medicare |
| MEGA Life and Health Insurance | Supplemental |
| Merchants Insurance Group | General, Workmans Comp |
| Mercury Insurance Group | General |
| MetLife | General, General |
| Missouri Employers Mutual | Workmans Comp |
| Molina Healthcare | Major Medical |
| Mutual of Omaha | General, General, Medicare, Supplemental |
| National Life | General |
| Nationwide Mutual Insurance Company | General, General, Workmans Comp |
| New Jersey Manufacturers Insurance Company | General |
| New York Life Insurance Company | General |
| Northwestern Mutual | General |
| Old Mutual | General |
| Omega | General |
| OneBeacon | General |
| Oxford Health Plans | General |
| Pacific Life | General, General |
| Pacificare | General |
| PEMCO | General |
| Penn Mutual | General |
| Penn National Insurance | Workmans Comp |
| Philadelphia Contributionship | General |
| Philadelphia Insurance Companies | General |
| Premera Blue Cross | Major Medical, Medicare |
| Primerica | General |
| Principal Financial Group | General, Major Medical |
| Progressive Corporation | General |
| Protective Life | General, General |
| Prudential Financial | General, General |
| QBE Insurance | General |
| Reliance Insurance Company | General |
| RLI Corp. | General |
| Safe Auto Insurance Company | General |
| Safeco | General |
| Safeway Insurance Group | General |
| Selective Insurance | General |
| Sentry Insurance | General, Workmans Comp |
| Seven Corners | Travel |
| Shelter Insurance | General, Major Medical |
| Southern Aid and Insurance Company | General |
| Standard Insurance Company | General, General |
| State Accident Insurance Fund | Workmans Comp |
| State Compensation Insurance Fund | Workmans Comp |
| State Farm | Major Medical |
| State Farm Insurance | General, General, Supplemental, Workmans Comp |
| Sun Life Financial | General |
| Supplemental | Supplemental |
| Symetra | General |
| The Hartford | General, Workmans Comp |
| The Regence Group | General, Major Medical |
| The Travelers Companies | General |
| Thrivent Financial for Lutherans | General, Major Medical, Medicare |
| TIAA-CREF | General, General |
| Transamerica Corporation | General |
| Travel | Travel |
| Travel Guard | Travel |
| Tricare | Medicare |
| Trupanion | General |
| UNIFI Companies | General |
| United of Omaha | General |
| UnitedHealth Group | Major Medical |
| Unitrin | Major Medical |
| Unitrin Direct Auto Insurance | General |
| Universal American Corporation | Major Medical |
| Unum | General |
| USAA | General |
| WellCare Health Plans | Major Medical |
| WellPoint | Major Medical, Workmans Comp |
| West Bend | General |
| West Coast Life | General |
| Western & Southern Financial Group | General, General |
| Western Mutual Insurance Group | General |
| Westfield Insurance | General |
| White Mountains Insurance Group | General |
| Workmans Comp | Workmans Comp |
| Zenith Insurance Company | Workmans Comp |