- Auto-Owners
- BCBS of MI
- Cincinnati Casualty Company
- Citizens
- Continental Western Group
- Eastern Alliance
- EMC
- Encova
- Eye Med
- Frankenmuth
- Grange
- Hanover
- Hastings Mut.
- Lincoln Financial Group
- Michigan Ins.
- Mutual of Omaha
- Pioneer State Mut. Ins. Co.
- Priority Health
- Progressive
- Safeco
- Travelers
- United Healthcare
- Wolverine Mut