- Auto-Owners
- Berkley Southeast Insurance Group
- Cincinnati Insurance Companies
- CNA
- Colonial Life
- Columbia
- Donegal
- Encompass
- Frankenmuth
- Hartford
- Penn Natl.
- Progressive
- Safeco
- Universal P&C
- John H. Dark, CIC, API, Princ.
- John D. Dark, CIC, Princ.
- William Dark, CIC, CISR, Princ.