- AAA
- Accident Fund Insurance Company
- Aflac
- American Modern Insurance Group
- Auto-Owners
- Foremost
- Frankenmuth
- Fremont
- Grange
- Great Lakes Mut.
- Hagerty
- Hastings Mutual
- ICW Group
- National Interstate
- Nationwide
- Pennsylvania Lumbermens Mutual
- Pioneer State Mut. Ins. Co.
- Progressive
- Retailers Mut.
- RLI Corp.
- Safeco
- Selective
- Travelers
- West Bend
- Wolverine Mutual