- AIG
- Allegany Insurance Group
- Auto-Owners
- Berkley Surety
- Builders Mutual Insurance
- Chubb
- Chubb
- Contractors Bonding & Ins. Co.
- FCCI
- FHM
- Fireman's Fund
- First Natl.
- Great American
- Guarantee Co. of NA
- Hartford
- Insco Dico
- Liberty Mutual
- Montgomery
- MSA
- National Grange Mutual
- North American Specialty
- Ohio Casualty
- Old Republic
- Penn Natl.
- Philadelphia
- Progressive
- RLI Corp.
- Safeco
- Strategic Comp
- Travelers
- W. R. Berkley Corporation
- Patrick McKain, Market Leader