Marsh McLennan Agency Acquires Hudson Shore Group

Marsh McLennan Agency Acquires HMS Insurance Associates

January 4, 2023

Insurance

Marsh McLennan Agency (MMA), a subsidiary of Marsh, has acquired Hunt Valley, Maryland-based HMS Insurance Associates, Inc.; terms were not disclosed. Founded in 1943, HMS — with more than 120 employees — provides property/casualty, surety, group captive and employee benefits services and will continue operating from its Hunt Valley office as part of MMA.

Marsh McLennan Agency Acquires The Horton Group, Inc.

July 9, 2024

Insurance

Marsh McLennan Agency (a subsidiary of Marsh) has entered into a definitive agreement to acquire The Horton Group, Inc., a full-service insurance brokerage based in Orland Park, Illinois. Horton’s approximately nine offices and employees (including CEO Dan Horton) will join Marsh McLennan Agency and continue operating locally; the deal is expected to close in the third quarter of 2024 and terms were not disclosed.

Marsh McLennan Agency Acquires Hayden Wood Insurance Agency

November 3, 2025

Insurance

Marsh McLennan Agency (MMA) has acquired Hayden Wood Insurance Agency Inc., an independent personal-lines agency based in Southborough, Massachusetts. Terms were not disclosed; all employees, including President and owner Morgan Duffy, will join MMA and continue to operate from the existing Southborough office. The acquisition expands MMA's private client capabilities with Hayden Wood's specialty in collector auto and motorsports insurance.

Marsh McLennan Agency Acquires Steinberg & Associates, Inc.

September 1, 2022

Insurance

Marsh McLennan Agency (MMA), a subsidiary of Marsh, has acquired Steinberg & Associates, Inc., an independent insurance and employee benefits agency based in Spartanburg, South Carolina. The acquisition expands MMA's presence in South Carolina and brings Steinberg's client-focused employee health, benefits and private client services into MMA; terms were not disclosed.

Marsh McLennan Agency Acquires Clark Insurance (including Haberman Insurance)

June 2, 2023

Insurance

Marsh McLennan Agency (MMA), a subsidiary of Marsh, has acquired Clark Insurance, a full-service independent insurance agency headquartered in Portland, Maine; the transaction also includes Haberman Insurance, which Clark acquired in 2021. The deal brings all 135 Clark employees (plus Haberman staff) into MMA and expands MMA's presence across New England with Clark's offices in Maine, New Hampshire and Massachusetts.

Marsh McLennan Agency Acquires Robinson & Son

February 2, 2026

Insurance

Marsh McLennan Agency (MMA), a business of Marsh, has acquired Robinson & Son, LLC, a Hudson Falls, New York-based insurance agency specializing in the maritime industry. All employees of Robinson & Son, including Co-Founder and Agency Principal James Robinson, will join MMA and continue to operate from their existing office; terms were not disclosed.