- AmeriSafe Inc
- Amerisure Companies
- Auto Owners Insurance Co
- Bankers Insurance Company
- Chubb Insurance Companies
- Citizens Property and Insurance Corp.
- CNA
- CNA Surety
- Crum & Forster
- Employers Preferred Insurance Co
- FCCI
- FFVA Mutual
- Fidelity National Property & Casualty Co.
- Firemans Fund Ins. Company
- First Professionals Ins Co
- Hanover Insurance Co.
- Hartford Insurance Co
- ICW
- Liberty Mutual Insurance Companies
- Lumbermens Underwriting Alliance
- Medical Protective Company
- Montgomery Insurance
- North Pointe
- Old Republic Surety Company
- OptaComp
- Pennsylvania Lumbermens Mutual Ins Co
- Philadelphia Insurance Co
- PMA Insurance Group
- Preferred Government Insurance Trust (PGIT)
- Progressive Insurance Co
- RLI Insurance Company
- Safeco Insurance Co./a>
- Travelers
- Westfield Insurance Company
- Zenith Insurance Company
- Zurich

