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Marsh McLennan (MMC) reported revenue of $7.60B in Q1 2026.
Marsh McLennanLargest insurance broker: Marsh + Guy Carpenter + Mercer + Oliver Wyman; ~$24B 2024 revenue; fee-based, not balance-sheet risk.
Marsh McLennan (MMC) is an Insurance: Brokerage company. Largest insurance broker: Marsh + Guy Carpenter + Mercer + Oliver Wyman; ~$24B 2024 revenue; fee-based, not balance-sheet risk. It was founded in 1905, is headquartered in New York, NY and employs about 90,000 people.
As of 2025-Q3, Marsh McLennan's revenue breaks down across Risk & Insurance Services (61%), Consulting (39%). See the revenue-by-segment chart for the full mix.
Track Marsh McLennan's quarterly and annual revenue, gross and net margins, and EPS in the interactive charts on this page. Data last updated October 4, 2026.
Sterling groups Marsh McLennan in the Insurance industry, alongside Aon (AON), Arthur J. Gallagher (AJG), Brown & Brown (BRO), Willis Towers Watson (WTW) and Erie Indemnity (ERIE).
If you are researching Marsh McLennan, also look at Aon (AON), Arthur J. Gallagher (AJG) and Brown & Brown (BRO). You can compare all of them side by side or browse the full Insurance industry on Sterling.
Q2 2016-Q1 2026
Q2 2016-Q1 2026