- AIC
- American Modern Insurance Group
- American Reliable
- Chubb
- Donegal
- Foremost
- Grange
- Hanover
- Harford Mutual
- Hartford
- J.C. Taylor
- Lititz Mutual
- Main St. America
- MAPFRE
- MEMIC
- MMG
- Nationwide
- Ohio Casualty
- PA Fair Plan
- Progressive
- QBE
- RLI Corp.
- Rockwood
- Safeco
- Travelers
- Zurich
- George W. Meschter, President