- Aetna
- American Collectors
- Bremen Farmers Mutual Insurance Company
- Cigna
- CNA Surety
- Columbia Insurance Group
- EMC
- Farmers Alliance Mutual Insurance
- Hagerty
- Liberty Mutual
- Lumico
- Manhattan Life
- Markel
- Marysville Mutual
- Nationwide
- NCCI
- North Star Mutual Insurance Company
- Progressive
- RCIS
- RLI Corp.
- Safeco
- SFM Workers Comp
- State Auto
- Symetra
- Upland Mutual
- West Bend