Marsh & McLennan Companies (MMC) is undeniably a massive global enterprise, operating as the world's leading professional services firm in the areas of risk strategy, insurance brokerage, and human capital consulting. Headquartered in New York City, the corporation commands a market capitalization of over $90 billion and employs tens of thousands of specialized advisors, brokers, and consultants operating in more than 130 countries. Through its elite operating subsidiaries—including Marsh, Guy Carpenter, Mercer, and Oliver Wyman—it generates billions of dollars in annual revenue, serving a vast portfolio of corporate, institutional, and government clients worldwide.