Marsh McLennan Agency Email Format

InsuranceNew York, United States10001+ Employees

Marsh McLennan Agency (MMA) is an insurance-focused business unit of Marsh, headquartered at 360 Hamilton Avenue in White Plains, New York, United States, and employs more than 10,000 people. The firm provides business insurance, employee health and benefits, retirement and wealth, and private client insurance solutions across the United States and Canada. As part of Marsh, MMA is aligned with a global leader in risk, reinsurance and capital, people and investments, and management consulting, with advisory coverage in 130 countries. In 2026, MMA completed the acquisition of TriBridge Partners to expand its independent benefits brokerage and retirement and wealth advisory capabilities, and MHBT leadership joined MMA, continuing to operate from the Columbia, Maryland office. More information is available on the company website at marshmma.com.

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