- Accident Fund Insurance Company
- Acuity Insurance
- Auto-Owners
- Chubb
- EMC
- Employers
- Hanover
- Hastings Mut.
- Humana
- Image of WI
- Nationwide
- Network Health
- Progressive
- PURE
- QBE
- Rain & Hail
- Secura
- Sheboygan Falls Mutual
- United Fire Group
- United Healthcare
- West Bend
- Wilson Mutual
- Wisconsin Mut.
- WPS