- A.I.M. Mutual Insurance Companies
- Acadia
- AIG
- American European
- American Modern Insurance Group
- AmeriTrust
- AmTrust
- Berkshire Hathaway GUARD
- Bunker Hill Insurance
- Chubb
- CNA
- Concord Group Insurance
- Coverys
- Farmers Insurance
- FirstComp
- Foremost
- GNY
- Great American
- Hanover
- Hartford
- Heritage
- Hosptiality Ins.
- Liberty Mutual
- MAPFRE
- MAPFRE
- MEMIC
- Merchants Insurance Group
- MiddleOak
- Narragansett Bay
- Nationwide
- NGM/Main St. America
- OneBeacon
- Philadelphia
- Pilgrim
- Plymouth Rock Assurance
- Preferred Mutual
- QBE
- Quincy Mutual Group
- Safeco
- Safety Ins.
- State Auto
- Travelers
- Union Mut.
- Utica First
- Utica National Insurance Group