Marsh & McLennan Companies, Inc. is a premier global professional services firm specializing in risk, strategy, and people, serving clients through a strategic combination of its four primary businesses: Marsh, Guy Carpenter, Mercer, and Oliver Wyman. With a strong presence in over 130 countries and a robust workforce of approximately 85,000 employees, the Company generates significant revenue from both its Risk and Insurance Services and Consulting segments, which accounted for 62% and 38% of total revenue, respectively, in 2023. Marsh provides leading risk advisory and insurance solutions, while Guy Carpenter focuses on reinsurance and capital strategies to support client growth. Meanwhile, Mercer helps organizations manage health, wealth, and career development, and Oliver Wyman offers strategic advisory services across various industries, enhancing operational and financial performances.