- Acadia
- AmTrust
- Andover Companies
- Central Insurance Companies
- Co-operative Ins.
- Concord Group Insurance
- Energi
- Foremost
- Hagerty
- Hanover
- Hartford
- Liberty Mutual
- Main St. America
- Markel
- Merchants Insurance Group
- MMG
- Ohio Mutual
- Openly
- Peerless
- Plymouth Rock Assurance
- Preferred Mutual
- Progressive
- Safeco
- Safety
- Travelers
- Union Mut.
- Vermont Mutual Insurance Group