- Accident Fund Insurance Company
- Auto-Owners
- Bristol West
- Chubb
- Fidelity National
- Foremost
- Fremont
- Grange
- Hagerty
- Hanover
- Hartford
- Michigan Millers Mutual Insurance Company
- Nationwide
- Progressive
- Retailers Mut.
- Safeco
- State Auto
- Travelers
- USLI
- West Bend
- Zurich