- Adriatic
- AIG
- Alabama Retail Comp
- Alabama Trucking Association
- AlaCOMP
- Allianz
- Amerisafe
- AmTrust
- Assurant
- Auto-Owners
- Benchmark
- Berkshire Hathaway GUARD
- Canal
- Carolina Casualty
- Chubb
- Cincinnati Insurance Companies
- CNA
- Columbia
- CompTrust
- Donegal
- EMC
- Endurance
- Farmers
- FCCI
- Frankenmuth
- Great American
- Guardian
- Hanover
- Hartford
- Liberty Mutual
- Lincoln
- Lloyd's
- Markel
- Medical Protective
- MetLife
- Natl. Indemn.
- Penn Natl.
- Philadelphia
- Principal
- Progressive
- Prudential
- QBE
- Reliance Std.
- Sentry
- Starr
- State Auto
- STICO
- Sun Life
- The Sheffield Group
- The Standard
- Transamerica
- Travelers
- Unum
- Voya
- Workers First
- Zenith
- Zurich
- George W. Thompson, III, CIC, President