- Andover Companies
- Arbella Insurance Group
- Bunker Hill Insurance
- Encompass
- Foremost
- Hingham Mutual
- Liberty Mutual
- MAPFRE
- Mass Property
- NLC
- Norfolk & Dedham
- Plymouth Rock Assurance
- Progressive
- Safeco
- Safety Insurance
- Selective
- Travelers
- Vermont Mutual Insurance Group
- Raymond Gramlich, Jr., Pres.