- Aegis
- American Modern Insurance Group
- Blue Cross Blue Shield
- Cigna
- CompSource Mut.
- Cornerstone
- Delta Dental
- Encompass
- Foremost
- Gainsco
- Grinnell Mutual
- Hagerty
- Hallmark
- Humana
- Kemper Auto
- Main Street America
- Markel
- MDOW
- Medica
- Mutual of Omaha
- North Star Mutual Insurance Company
- Progressive
- Safeco
- Travelers
- United Healthcare
- USLI