- Brick Street Mutual (Encova)
- Cincinnati Insurance Companies
- Coventry Health Care
- Dairyland
- Encompass
- Encova
- Erie Insurance
- F&M Mut.
- Genworth Financial
- Hartford
- Highmark BC/BS
- Humana
- John Hancock
- MetLife
- Progressive
- Safeco
- Shenandoah Life
- State Auto
- The Health Plan
- Travelers
- United Healthcare
- Westfield Insurance