Marsh & McLennan Companies, Inc.
New York Stock ExchangeCapital Structure
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in mil. unless spec.Working Capital
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in mil. unless spec.Growth Rates
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in mil. unless spec.Quarterly Revenue
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in mil. unless spec.Quarterly Earnings Per Share
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in mil. unless spec.Quarterly Dividends Per Share
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in mil. unless spec.- CEO
- John Quinlan Doyle
- Full Time Employees
- 90,000
- Sector
- Financial Services
- Industry
- Insurance - Brokers
- Address
- 1166 Avenue of the Americas New York City NY United States of America 10036-2774
- IPO Date
- Dec 30, 1987
- CIK
- 0000062709
- Website
- mmc.com
- Similar Companies
- Business
- Marsh & McLennan Companies, Inc. (NYSE: MMC) operates as a global professional services firm specializing in risk, strategy, and people, delivering advisory services and solutions through its four primary businesses: Marsh, Guy Carpenter, Mercer, and Oliver Wyman. Marsh provides insurance broking, risk management, risk consulting, analytical modeling, alternative risk financing, and insurance program management services to a broad range of corporate, individual, and public sector clients worldwide; Guy Carpenter offers reinsurance intermediation, advisory, and capital strategies; Mercer delivers consulting on health, retirement, pension plans, talent management, investments, and HR-related outsourcing; and Oliver Wyman furnishes management consulting, including through subsidiaries like Lippincott for branding and NERA Economic Consulting for economic analysis. The company serves clients across diverse industries in over 130 countries, with significant operations in the United States (49% of revenue), EMEA (32%), Asia Pacific (11%), and other regions including Canada and Latin America; it generates annual revenue exceeding $24 billion, with Risk and Insurance Services accounting for 63% of revenues and Consulting for 37%. Founded in 1871 and headquartered in New York City, Marsh & McLennan maintains its position as the world's largest insurance broker by revenue. In recent developments, the company pursues aggressive acquisition activity, spending $8.5 billion in 2024—its largest year on record, including the addition of McGriff to Marsh McLennan Agency (now generating approximately $5 billion in revenue)—and $224 million in the first nine months of 2025 on deals such as Marsh McLennan Agency's purchases of three Hawaii brokerages (Atlas Insurance Agency, Pyramid Insurance Centre, and IC International) and Hayden Wood Insurance Agency, alongside Mercer's acquisitions of SECOR Asset Management in May 2025 to bolster global investment capabilities and Cardano in late 2024 to expand pension and investment services in the UK and Netherlands. Furthermore, Marsh & McLennan announces in October 2025 a rebranding to Marsh effective January 2026, alongside the creation of a new Business and Client Services unit to centralize investments in operational excellence, data, AI, analytics, and client innovation, supporting ongoing margin expansion for 17 consecutive years and strategic growth initiatives like the Thrive program targeting $400 million in savings.
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