- Aetna
- AIG
- American Collectors
- AmeriHealth
- Andover Companies
- Banner Life
- Baystate Mutual
- Cambridge Mutual Fire Insurance Company
- Chubb
- Cigna
- CNA
- Cumberland Mutual
- Delta Dental
- Encompass
- Foremost
- Fort Dearborn Life
- Genworth
- Guardian Dental
- Hagerty
- Hanover
- Harleysville
- Hartford
- HealthNet
- Horizon BC
- J.C. Taylor
- John Hancock
- Liberty Mutual
- Mercer
- Mercury
- Merrimack Mut.
- MetLife
- Oxford Health Plans
- Peerless
- Preserver Group
- Progressive
- Prudential
- Selective Flood
- Tower Group
- Travelers
- United Healthcare
- Utica National Insurance Group
- Zurich