- Accident Fund Insurance Company
- Acuity Insurance
- Chubb
- Cincinnati Insurance Companies
- CNA
- Continental Western Group
- Dairyland
- EMC
- Encompass
- Encompass
- Fireman's Fund
- Genworth
- Guardian
- Hartford
- Humana
- Jefferson Pilot
- Johncock
- Kemper
- Lincoln Benefit Life
- MetLife
- Nationwide
- Progressive
- QBE
- Safeco
- Secura
- Selective
- Travelers
- United Healthcare
- West Bend
- Zurich