- A. Central Insurance Company
- Allegany Co-op Insurance Company
- AmTrust
- Chubb
- Cincinnati Insurance Companies
- Dryden Mutual Insurance
- Erie & Niagara Insurance Association
- Foremost
- Genesee Patrons
- Hanover
- Hartford
- Markel
- Merchants Insurance Group
- National General
- National Grange Mutual
- NYCM
- Philadelphia
- Preferred Mutual
- Progressive
- Safeco
- Travelers
- Utica National Insurance Group
- Julius W. Aebly, Jr., Pres.