- Acadia
- AmTrust
- Andover Companies
- Berkshire Hathaway Homestate
- Chubb
- CIC
- Cincinnati Insurance Companies
- CNA
- CNA Surety
- Concord Group Insurance
- EMC
- Foremost
- Hagerty
- Hartford
- Hospitality Ins.
- J.C. Taylor
- Kingstone
- Liberty Mutual
- Lloyd's
- Main St. America
- MAPFRE
- MPIUA
- Narragansett Bay
- Philadelphia
- Plymouth Rock Assurance
- Preferred Mutual
- Progressive
- Providence Mut.
- Safeco
- Safety Insurance
- Travelers
- Union Mut.
- UPC
- US Assure
- USLI
- Utica National Insurance Group
- Vermont Mutual Insurance Group
- Zurich