- Accident Fund Insurance Company
- American Strategic Insurance
- Auto-Owners
- Berkley Southeast Insurance Group
- Berkshire Hathaway GUARD
- Berkshire Hathaway Homestate
- Builders Insurance
- Builders Mutual Insurance
- Cincinnati Insurance Companies
- Encova
- Foremost
- Hartford
- ICW Group
- Kemper
- Liberty Mutual
- MAG Mut.
- Penn Natl.
- Phhiladelphia
- Progressive
- QBE
- Safeco
- SC Patient Comp. Fund
- SCJUA
- Selective
- State Auto
- Summit
- Travelers