Marsh & McLennan Companies (NYSE: MMC) is a global professional services firm specializing in risk management, insurance brokerage, reinsurance services and consulting. Through its operating businesses—Marsh, Guy Carpenter, Mercer and Oliver Wyman—it helps clients assess and manage risk, secure insurance coverage, optimize workforce strategies and address complex business challenges. The company’s integrated approach combines deep industry expertise, data analytics and advisory services to support organizations across a wide range of sectors.
Marsh, the company’s risk and insurance services arm, provides brokerage and risk consulting to help clients design and implement insurance programs tailored to their specific exposures. Guy Carpenter focuses on broking and structuring reinsurance solutions for insurance companies, leveraging capital markets and analytics to optimize risk transfer. Mercer offers human capital and workforce consulting services, including health and benefits solutions, retirement planning and talent management strategies. Oliver Wyman delivers management and strategy consulting across financial services, travel and transport, energy and other industries, with an emphasis on performance improvement and innovation.
Founded in 1905 and headquartered in New York City, Marsh & McLennan Companies has grown through strategic acquisitions and global expansion to operate in more than 130 countries and territories. Over its history, the firm has built a reputation for rigorous analysis, innovative product development and a client-centric approach. Its global footprint enables it to serve multinational corporations, midsize businesses and public sector organizations, delivering localized expertise supported by worldwide resources and research capabilities.
Under the leadership of President and Chief Executive Officer Daniel S. Glaser, Marsh & McLennan Companies continues to invest in technology, analytics and talent development. The company emphasizes collaboration across its businesses to offer integrated solutions and drive long-term value for clients. With a focus on sustainability, resilience and digital transformation, Marsh & McLennan Companies aims to help organizations navigate evolving risks and seize new opportunities in today’s dynamic environment.
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