- Accident Fund Insurance Company
- Aflac
- Allstate
- American Modern Insurance Group
- AmTrust
- Berkley Assigned Risk
- BITCO Insurance Companies
- Bremen Farmers Mutual Insurance Company
- Chubb
- CNA
- CNA Surety
- Columbia
- Continental Western Group
- Diversified Crop Ins.
- EMC Ins. Cos.
- Farmers Alliance Mutual Insurance
- Foremost
- Grundy
- GuideOne
- Hagerty
- Hartford
- Liberty Mutual
- Markel
- Marysville Mutual
- Nationwide
- Philadelphia
- Pinnacol Assurance
- Progressive
- RT Specialty
- Safeco
- State Auto
- Stroud National Agency (Republic Grp.)
- Travelers
- United Fire Group
- United Heartland
- US Assure
- West Bend
- Zurich