- American Modern Insurance Group
- Assurant Health
- BCBS
- Bristol West
- Dairyland
- Erie Insurance
- Foremost
- Group Health Plan
- Grundy
- Hagerty
- Hartford
- Hastings Mut.
- Illinois Mut.
- Kemper
- Madison Mut.
- Mercury
- Nationwide
- Progressive
- Rockford Mutual
- Safeco
- Travelers
- United Healthcare
- Viking