- AIC
- AIG
- American Modern Insurance Group
- AmTrust
- Aon
- Berkshire Hathaway
- Brick Street Mutual (Encova)
- BTIS
- Builders Mutual Insurance
- Capital Specialty
- Century Mutual
- Chubb
- CNA
- Dairyland
- Devon Park Spec.
- Dovetail
- Employers
- Farmers Mutual Fire
- FirstComp
- Foremost
- Great American
- Guard
- Hartford
- Hiscox
- Liberty Mutual
- Markel
- MiddleOak
- National General
- Nationwide
- Penn-America
- Philadelphia
- Progressive
- Rockhill
- Scottsdale
- The Farmers Fire Insurance
- Travelers
- Universal P&C
- US Assure
- USG
- USLI
- Utica National Insurance Group
- Victor O. Schinnerer
- Western Heritage
- Zurich