Marsh & McLennan Companies, Inc. is a global professional services firm specializing in risk, strategy, and people. The company operates through two segments: Risk and Insurance Services, and Consulting. The Risk and Insurance Services segment offers risk management activities (risk advice, risk transfer, and risk control and mitigation solutions), as well as insurance and reinsurance broking and services, primarily through Marsh and Guy Carpenter. Marsh is a leading insurance broker and risk advisor, serving companies, institutions, and individuals, providing risk management, insurance broking, insurance program management, risk consulting, analytical modeling, and alternative risk financing services. Guy Carpenter is a reinsurance intermediary and advisor, creating and executing reinsurance and risk management solutions for clients worldwide. The Consulting segment provides health, wealth, and career advice, solutions, products, and specialized management, strategic, economic, and brand consulting services through Mercer and Oliver Wyman Group. Mercer delivers advice and technology-driven solutions related to the health, wealth, and career needs of a changing workforce. Oliver Wyman Group offers management consulting, combining deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation.

• Employees: 85,000 (as of December 31, 2023)
• Geographic Footprint: 130+ countries
• Headquarters: New York, New York
• Founded: 1871 (Marsh)
• Revenue: $22.7 billion (FY2023)
• Key Subsidiaries/Brands: Marsh, Guy Carpenter, Mercer, Oliver Wyman Group

• CEO: John Q. Doyle
• CFO: Mark McGivney
• Board Chairman: H. Edward Hanway
• Other Key Executives: Martine Ferland (CEO, Mercer & Vice Chair), Dean Klisura (CEO, Guy Carpenter & Vice Chair), Martin South (CEO, Marsh & Vice Chair), Nicholas Studer (CEO, Oliver Wyman & Vice Chair), Katherine J. Brennan (General Counsel), Paul Beswick (CIO)

• Annual Revenue: $22.7 billion (FY2023)
• Net Income: $3.8 billion (FY2023)
• Total Assets: $48.0 billion (FY2023)
• Number of Employees: 85,000 (as of December 31, 2023)
• Key Financial Highlights: Revenue increased 10% or 9% on an underlying basis. Operating income increased $1.0 billion, or 23% to $5.3 billion. Net income attributable to the company was $3.8 billion. Diluted earnings per share increased to $7.53 from $6.04, or 25%.

Marsh & McLennan offers a wide range of products and services related to risk management, insurance broking, reinsurance, consulting, and human capital management. Specific offerings include:

• Risk Management and Insurance Broking (Marsh): Risk analysis, insurance program design and placement, claims support, alternative risk strategies, and consulting services across various industries.
• Reinsurance (Guy Carpenter): Reinsurance broking, strategic advisory, analytics solutions, and capital market alternatives.
• Consulting (Mercer, Oliver Wyman): Health and benefits consulting and brokerage, retirement and investment consulting, wealth management, talent and career advice, and specialized management consulting across various industries.

Marsh & McLennan operates through two primary segments:

• Risk and Insurance Services: This segment includes Marsh and Guy Carpenter, focusing on insurance broking, risk advisory, and reinsurance. It generated $14.1 billion in revenue in FY2023, representing 62% of the company's total revenue.
• Consulting: This segment includes Mercer and Oliver Wyman Group, providing consulting services related to health, wealth, and career. It generated $8.7 billion in revenue in FY2023, representing 38% of total revenue.

Marsh & McLennan's business strategy focuses on providing clients with advice and solutions in the areas of risk, strategy, and people. The company aims to help clients build confidence and thrive by leveraging the expertise of its four market-leading businesses. Growth strategies include organic growth through new business and renewals, strategic acquisitions to expand capabilities and market presence, and investments in talent and technology. The company also emphasizes collaboration between its businesses to offer comprehensive solutions for complex, interconnected risks.

Marsh & McLennan operates in the professional services industry, specifically within the risk management, insurance, and consulting sectors. The company faces competition from other global, regional, national, and local firms in these areas, including insurance and reinsurance brokers, consultants, and technology companies. The industry is subject to evolving regulatory requirements and increasing demand for innovative solutions driven by technological advancements and changing client needs. The company also faces competition from alternative risk transfer mechanisms and direct-to-consumer offerings from insurance providers.

• Geopolitical and macroeconomic conditions can impact client demand and pricing for services.
• Exposure to uninsured liabilities from errors and omissions, breach of fiduciary duty, and other claims.
• Compliance with evolving laws and regulations, including data privacy and cybersecurity.
• Competition for talent and potential loss of key personnel.
• Cybersecurity threats and data breaches.