- Acadia
- Andover Companies
- Arbella Insurance Group
- Bunker Hill Insurance
- Chubb
- CNA
- Concord Group Insurance
- Dairyland
- Foremost
- Hanover
- Hartford
- Liberty Mutual
- MAPFRE
- MEMIC
- MMG
- Mt. Washington
- National General
- Patriot
- Patrons Oxford
- Peerless
- Philadelphia
- Plymouth Rock Assurance
- Progressive
- Safety
- Swett & Crawford
- Travelers
- Wright Flood