- Accident Fund Insurance Company
- Acuity Insurance
- Allstate
- Appalachian Underwriters
- Auto-Owners
- BCBS
- BCBS of IL
- Berkley Surety
- Cincinnati Insurance Companies
- CNA
- Columbia
- Continental Western Group
- Employers
- Encompass
- First Western
- Foremost
- Gateway Und.
- Grange
- Guardian
- Hartford Steam Boiler
- Hastings Mut.
- Health Alliance
- Hull & Co.
- Indiana
- Integrity
- JM Wilson
- Merchants Bonding Company
- MetLife
- Mut. Med.
- National Flood Insurance Program (NFIP) / FEMA
- Nationwide
- Natl. Spec.
- Natl. Truck Und.
- Northland
- Old Republic
- Principal Financial Group
- Progressive
- RW Scobie
- Safeco
- Secura
- Selective
- Swett & Crawford
- Transamerica
- Travelers
- Truckers Ins.
- United Fire Group
- United Healthcare
- United Heartland
- UnitedHealth Grp.
- USLI
- Victor O. Schinnerer
- Victoria
- West Bend
- Westfield Insurance
- Westrope
- Zurich