R. H. Nicholson & Company
- Aetna
- AIG
- Chubb
- CNA Surety
- Erie Insurance
- Hartford
- Hartford Steam Boiler
- Kaiser Permanente
- Liberty Mutual
- Markel
- North American Company
- Philadelphia
- Progressive
- Protective
- Safeco
- Travelers
- XL Catlin
- Nancy Miller, CPCU, CIC, Pres.