- AAA
- Accident Fund Insurance Company
- Acuity Insurance
- Amerisure
- Auto-Owners
- Berkley Agribusiness
- BITCO Insurance Companies
- Chubb
- Cincinnati Insurance Companies
- Citizens
- CNA
- Employers Mut.
- FCCI
- Foremost
- Frankenmuth
- Fremont
- Grange
- Hastings Mut.
- Michigan Ins.
- Michigan Millers Mutual Insurance Company
- Nationwide
- Pioneer State Mut. Ins. Co.
- Progressive
- Selective
- State Auto
- Travelers
- West Bend
- Westfield Insurance
- Wolverine Mut.
- Zurich