- AAA
- Acuity Insurance
- American Modern Insurance Group
- American Strategic Insurance
- Anthem Blue Cross Blue Shield
- Auto-Owners
- Badger Mutual Insurance Company
- Bristol West
- Burns & Wilcox
- Cincinnati Casualty Company
- CNA Surety
- Dairyland
- Erie Insurance
- Foremost
- Hagerty
- Hartford
- Integrity
- Kemper
- Liberty Mutual
- Progressive
- Safeco
- Secura
- Society Ins.
- State Auto
- United Healthcare
- West Bend
- David A. Wittmann, CPCU, Owner