- Accident Fund Insurance Company
- AIC
- American Collectors Insurance
- American Hallmark
- American Modern Insurance Group
- AmTrust
- Auto-Owners
- Berkshire Hathaway Homestate
- BITCO Insurance Companies
- Builders & Tradesmen's Insurance Services
- Cameron Mutual
- Chubb
- CNA Surety
- EMC
- Equity
- Farmers Union Mutual Insurance Company
- Foremost
- Great American
- Guard
- Hagerty
- Hallmark
- Hiscox
- Imperial PFS
- Liberty Mutual
- Markel
- MetLife
- Midwest
- National General
- Nationwide
- Natl. American
- Natl. Security
- Premium Assignment
- Progressive
- Safeco
- Sagamore
- Scottish American
- Southern Pioneer
- Traders
- Triangle Ins.
- USLI
- Zurich