- Accident Fund Insurance Company
- Builders Mutual Insurance
- Chesapeake Employers Ins.
- Chubb
- CNA
- Commonwealth Contractors
- Harford Mutual
- Hartford
- HDI Global Specialty SE
- Jewelers Mutual
- Liberty Mutual
- Markel
- Northfield
- Philadelphia
- Progressive
- Seneca
- Travelers
- US Assure
- Utica First