Marsh McLennan is a global professional services firm headquartered in New York City. Founded in 1905 through the merger of businesses led by Henry W. Marsh and Donald R. McLennan, it went public in 1962. It operates through four divisions: Marsh (insurance brokerage and risk management), Marsh Re (reinsurance intermediary), Mercer (HR and benefits consulting), and Oliver Wyman (management consulting). With over 90,000 employees across 130+ countries, Marsh McLennan ranks 175th on the Fortune 500 and serves financial services, healthcare, energy, manufacturing, technology, and other sectors. Its distinctive strength combines risk management expertise, organizational strategy, and human capital capabilities. Recent acquisitions of Jardine Lloyd Thompson (2019) and McGriff Insurance Services (2024) demonstrate continued expansion in its core risk and consulting markets.
Marsh McLennan cultivates a sophisticated, client-focused culture emphasizing thought leadership and expertise. The firm brings together specialists across risk management, consulting, and human capital practices, fostering collaboration around complex strategic challenges. The company positions itself as a trusted advisor to senior leaders and policymakers, reflecting a professional and intellectually rigorous work environment. Employees typically work on high-stakes advisory engagements requiring deep industry and functional expertise.
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| Round | Closed | Amount | Investors |
|---|---|---|---|
| Later | Jan 1962 | undisclosed |