InPro Insurance Group, Inc.
- Accident Fund Insurance Company
- American Modern Insurance Group
- Assigned Risk
- Auto-Owners
- BCBS of MI
- Berkshire Hathaway Homestate
- CAMComp
- Citizens
- Delta Dental
- DenCap
- EyeMed
- Foremost
- Guardian
- GuideOne
- Hagerty
- Hanover
- HAP
- Humana
- Liberty Mutual
- Michigan Millers Mutual Insurance Company
- Nationwide
- Philadelphia
- Premco
- Principal
- Priority Health
- Progressive
- Prudential
- Reassure Life
- Safeco
- SBLI
- Selective
- State Auto
- Total Health Care
- Travelers
- United Healthcare
- USLI
- West Bend
- Western Surety Co.