- AIG
- Altus Dental
- Bunker Hill Insurance
- Chubb
- Chubb
- CNA
- Colonial Life
- Delta Dental
- Fallon Health
- Foremost
- Guard
- Hartford
- Harvard Pilgrim
- HNE
- MAPFRE
- Mass Property
- MetLife
- National Grange Mutual
- Neighborhood Health Plan
- Norfolk & Dedham
- Philadelphia
- Pilgrim
- Plymouth Rock Assurance
- Principal Financial Group
- Quincy Mutual Group
- Safety Ins.
- State Auto
- Travelers
- Tufts Health
- VSP