Marsh McLennan Agency
marshmma.com · Startup insurance · Risk & Compliance
Marsh McLennan Agency (MMA) is a prominent middle-market broker and provider of business insurance, employee health and benefits, retirement and wealth services, and private client insurance solutions in the United States and Canada.
Company facts
| Founded | 2008 (18 years) |
| Employees | 15,000 |
| Headquarters | White Plains, United States |
| Trusted networks on Proven | 2 investor, bank and government networks offer Marsh McLennan Agency to their members |
Company facts from Apollo.io company data. Network, offer and redemption data from the Proven platform. A Proven Score is published once publicly named clients are verified with sources.
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| Marsh McLennan Agency | Score in progress |
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Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Methodology. Updated 2026-10-21.