- Accident Fund Insurance Company
- American Modern Insurance Group
- American Strategic Insurance
- Amerisafe
- Auto-Owners
- Bristol West
- Builders Insurance Group
- Builders Mutual Insurance
- Burns & Wilcox
- Central Insurance Companies
- Chubb
- CNA
- CNA Surety
- Dairyland
- Employers
- Foremost
- Guard
- Hartford
- Liberty Mutual
- Lititz Mutual
- Lloyd's
- Main St. America
- Markel
- Montgomery
- Nationwide
- Progressive
- Safeco
- Travelers
- Travelers Flood
- Universal P&C
- Zurich