- American Collectors Insurance
- Applied Underwriters
- Auto-Owners
- Blue Cross Blue Shield
- Bristol West
- CNA
- CNA Surety
- Foremost
- Grinnell Mutual
- Hagerty
- Hartford
- Imperial PFS
- Mercury
- Progressive
- QBE
- RLI Corp.
- Rockford Mutual
- Safeco
- State Auto
- Stillwater
- Travelers