Worker Compensation |
| Worker Compensation Insurance Companies in the United States |
| Workers' compensation Insurance Companies |
| Accident Fund |
| American International Group (AIG) |
| Cincinnati Financial Corporation |
| Erie Insurance Group |
| GUARD Insurance Group |
| Hanover Insurance |
| The Hartford |
| Liberty Mutual |
| Merchants Insurance Group |
| Missouri Employers Mutual |
| Nationwide Mutual Insurance Company |
| The Norfolk and Dedham Group |
| Penn National Insurance |
| Sentry Insurance |
| State Farm Insurance |
| WellPoint |
| Zenith Insurance Company |