- AAA
- Aegis
- Allstate
- American Collectors
- American Modern Insurance Group
- Badger Mutual Insurance Company
- Berkshire Hathaway GUARD
- Burns & Wilcox
- CNA
- Concorde General Agency
- Dairyland
- Erickson-Larsen
- Foremost
- Geico
- Grinnell Mutual
- Homesite
- Itasca
- Lincoln Benefit Life
- Lyndon Southern
- Markel
- Minnesota Fair Plan
- Munich Re
- National General
- Nationwide
- Nautilus Ins. Co.
- Philadelphia
- Progressive
- RAM Mut.
- RPS
- Safeco
- SFM
- SFM Mut.
- Stillwater
- The Hartford Group
- Travelers
- Universal Property & Casualty
- USLI
- Western Mutual
- Woodland Mutual