- A.I.M. Mutual Insurance Companies
- AIG
- All Risks Insurance
- American European
- American Reliable
- AmeriTrust
- AmTrust
- Arbella Insurance Group
- Berkshire Hathaway GUARD
- Bunker Hill Insurance
- Chubb
- Cincinnati Insurance Companies
- CNA
- CNA Surety
- Employers
- Farmers Fire Insurance Company
- Foremost
- Grundy
- Hagerty
- Hanover
- Hartford
- Hartford Steam Boiler
- Imperial Premium Financing
- K&K
- Liberty Mutual
- Lloyd's
- Main St. America Grp.
- MAPFRE
- Markel
- MassMut.
- Merchants Insurance Group
- MetLife
- MPIUA
- National Flood Insurance Program (NFIP) / FEMA
- National General
- NLC
- Old Dominion
- Orchid
- Peerless
- Personal Umbrella
- Pilgrim
- Plymouth Rock Assurance
- Preferred Mutual
- Principal
- Progressive
- Providence Mut.
- Prudential
- PURE
- Quincy Mutual Group
- RLI Corp.
- Safeco
- Safety
- Selective
- Seneca
- Tokio Marine
- Travelers
- Universal Property & Casualty
- Utica First
- Utica National Insurance Group
- Zurich