Holbrook Insurance Center, Inc.
- American Modern Insurance Group
- Andover Companies
- Arbella Insurance Group
- Assurant
- CNA Surety
- Concord Group Insurance
- Fidelity National
- Foremost
- Grundy Worldwide
- Guard
- Hagerty
- J.C. Taylor
- Main St. America
- Mass Property
- MetLife
- National Flood Insurance Program (NFIP) / FEMA
- Norfolk & Dedham
- Philadelphia
- Preferred Mutual
- Progressive
- Quincy Mutual Group
- Safeco
- Safety Ins.
- Travelers
- United Marine Undwrs.
- Utica National Insurance Group
- Zurich
- James G. Crowley, President
- Paul T. Gordon, V.P.
- Paul Crowley