- Accident Fund Insurance Company
- Acuity Insurance
- Aflac
- Amerisafe
- Applied Underwriters
- Brethren Mutual
- Central Insurance Companies
- Chubb
- CNA Surety
- Cumberland
- Donegal
- Erie Insurance
- Foremost
- Hartford
- Liberty Mutual
- Mutual Benefit Group
- Nationwide
- NJM Ins.
- Progressive
- PURE
- Safeco
- Travelers