- Argonaut
- Capital Specialty
- Carolina Casualty
- Casco Indemnity Company
- Dairyland
- Empire Fire & Marine
- Encova
- Farmers Insurance
- Foremost
- Great American
- Great West
- Metropolitan
- National Grange Mutual
- Natl Indem.
- Natl. Casualty
- Natl. Fire & Marine
- Nautilus
- Northland
- Ohio Mutual
- Phoenix
- Progressive
- Safeco
- Stratford
- Travelers
- Western World
- Zurich