Marsh McLennan vs Blackstone Inc.
Side-by-side comparison of AI visibility scores, market position, and capabilities
World's largest insurance broker network (Marsh, Guy Carpenter, Mercer, Oliver Wyman); $23.4B FY2024 revenue; hard market tailwind 2019-2024; cyber insurance leader; competes with Aon, Willis Towers Watson.
About
Marsh McLennan is the world's leading professional services firm in risk, strategy, and human resources, formed through the merger of Marsh & McLennan Companies and operating four market-leading subsidiaries: Marsh (global insurance broker and risk management advisor), Guy Carpenter (global reinsurance broker), Mercer (human resources and employee benefits consulting), and Oliver Wyman (management consulting). Headquartered in New York City and trading on NYSE (MMC), the company generated approximately $23.4 billion in revenues for FY2024 under CEO John Doyle, who succeeded longtime CEO Dan Glaser in 2022 and has maintained the firm's organic growth momentum and selective acquisition strategy. Marsh, the flagship insurance brokerage, is the world's largest insurance broker by revenue, advising corporations globally on risk placement, captive insurance programs, and risk management strategies across property, casualty, marine, and specialty lines.
New York alternative asset manager (NYSE: BX) at $1.2T AUM; 2024 revenue $11.37B (+53%), AirTrunk A$24B Asia-Pacific data center acquisition, distributable earnings $6B competing with Apollo and KKR.
About
Blackstone Inc. is a New York City, New York-based alternative asset management company — publicly traded on the New York Stock Exchange (NYSE: BX) as an S&P 500 Financials component — managing $1.2 trillion in assets under management across private equity, real estate, credit and insurance, and hedge fund solutions through approximately 4,900 employees serving institutional investors, sovereign wealth funds, pension funds, insurance companies, and high-net-worth individuals globally. Founded in 1985 by Stephen Schwarzman and Peter G. Peterson, Blackstone grew from a boutique M&A advisory into the world's largest alternative asset manager. In fiscal year 2024, Blackstone reported revenue of $11.37 billion (+53% year-over-year) and distributable earnings of $6.0 billion (+18%), reflecting strong performance across its diversified alternative asset portfolio. AUM reached $1.2 trillion by mid-2025. CEO Steve Schwarzman and President Jonathan Gray lead the firm. Blackstone's landmark 2024 transaction was the A$24 billion acquisition of AirTrunk — Asia-Pacific's largest data center platform — through its real estate funds, positioning Blackstone as a dominant owner of AI infrastructure in the world's fastest-growing digital economy.
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