- Aetna
- AIG
- Allstate
- American Modern Insurance Group
- AmTrust
- AmWINS
- Assurant Health
- Banner Life
- BCBS
- Berkshire Hathaway GUARD
- Berkshire Hathaway Homestate
- Chubb
- Cigna
- CNA
- Farmers
- Fireman's Fund
- Foremost
- Genworth Financial
- Grange
- Great American
- Hanover
- Home State County Mut.
- Humana
- Liberty Mutual
- Lincoln Financial Group
- Markel
- MetLife
- Mutual of Omaha
- National General
- Ohio Mutual
- Philadelphia
- Principal Financial Group
- Progressive
- Safeco
- State Auto
- Tapco
- Transamerica
- Travelers
- United Healthcare
- Zurich