- ACCC Insurance Company
- Aflac
- Allianz
- American Strategic Insurance
- AmTrust
- AmWINS
- Arch Insurance
- Assurant
- Berkshire Hathaway Homestate
- Burns & Wilcox
- Chubb
- CNA
- Great American
- Hartford
- Hartford Steam Boiler
- Hiscox
- Humana
- James River
- John Hancock
- Liberty Mutual
- Lloyd's
- Markel
- MetLife
- OneBeacon
- Pacific Life
- Philadelphia
- Principal
- Progressive
- RLI Corp.
- Safeco
- Scottsdale
- United Healthcare
- USLI
- Zurich