- Accident Fund Insurance Company
- Acuity Insurance
- Amerisafe
- AmTrust
- Austin Mutual Insurance Company
- Auto-Owners
- Cincinnati Insurance Companies
- Fireman's Fund
- Great West
- Grinnell Mutual
- Hartford
- Illinois Cas.
- Integrity
- Liberty Mut.
- Nationwide
- North Star Mutual Insurance Company
- Progressive
- QBE
- RAS
- Secura
- SFM
- State Auto
- Travelers
- United Fire Group
- West Bend
- Western Natl.
- Westfield Insurance