- Aetna
- AIG
- American Modern Insurance Group
- Anthem Blue Cross Blue Shield
- Auto-Owners
- Brotherhood Mutual Insurance Company
- Encova
- Foremost
- Grange
- Great American
- Hartford
- Humana
- KEMI
- Liberty Mutual
- Mutual of Omaha
- Progressive
- Prudential
- Safeco
- Selective
- Travelers
- Trexis
- United Healthcare
- West Bend
- Zurich