- Accident Fund Insurance Company
- Aflac
- Allstate
- American Modern Insurance Group
- AmTrust
- Appalachian Underwriters
- Berkshire Hathaway GUARD
- Builders Mutual Insurance
- Burns & Wilcox
- CNA Surety
- Encompass
- Foremost
- Hanover
- Hartford
- Liberty Mutual
- MAPFRE
- Markel
- Mercury
- MetLife
- National General
- Nationwide
- Progressive
- Ryan Specialty Group
- Safeco
- State Auto
- Travelers
- USLI