Marsh is the world’s leading insurance broker and risk advisor. With around 40,000 colleagues operating in more than 130 coun ... tries, Marsh serves commercial and individual clients with data-driven risk solutions and advisory services. Marsh is a business of Marsh McLennan (NYSE: MMC), the world’s leading professional services firm in the areas of risk, strategy and people. With annual revenue over $18 billion, Marsh McLennan helps clients navigate an increasingly dynamic and complex environment through four market-leading businesses:. Marsh, Guy Carpenter, Mercer and Oliver Wyman. read more