- Allied
- Allstate
- American Modern Insurance Group
- Berkshire Hathaway
- CBIC
- CIG
- Dairyland
- Deans & Homer
- Encompass
- Fidelity
- Foremost
- GeoVera
- Glatfelter
- Grange
- Griffin
- Hagerty
- Hartford
- Insco-Dico
- J.C. Taylor
- K&K
- Liberty Mutual
- MAPFRE
- Markel
- Mut. of Enumclaw
- National General
- Nationwide
- Ohio Casualty
- Oregon Mut.
- PersonalUmbrella
- Philadelphia
- Progressive
- QBE
- RLI Corp.
- Safeco
- Stillwater Ins. Group
- Swett & Crawford
- Titan
- Travelers
- Travelers
- Unigard
- Victoria
- Western Natl