- Encompass
- Liberty Mutual
- Main Street America
- Markel
- MetLife
- Millers Mut.
- National Flood Insurance Program (NFIP) / FEMA
- Philadelphia
- Progressive
- Safeco
- Selective
- The Philadelphia Contributionship
- United Fire Group
- Utica National Insurance Group
- Zurich
- Thomas P. Trimbur, Pres.
- Paul J. Trimbur
- Thomas A. Trimbur