- Acuity Insurance
- Aetna
- Allstate
- Anthem Blue Cross Blue Shield
- Auto-Owners
- Berkshire Hathaway Homestate
- Chubb
- Cigna
- Cincinnati Insurance Companies
- Delta Dental
- Employers
- Foremost
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- Hartford
- Humana
- International Medical Group
- Jackson National Life
- Lincoln Financial Group
- Markel
- Missouri Employers Mutual
- Mutual of Omaha
- National General
- Philadelphia
- Principal
- Progressive
- Reliance Standard
- Safeco
- Secura
- State Auto
- Transamerica
- Travelers
- United Healthcare
- Unum
- West Bend