Marsh McLennan is a global professional services firm with operations in 130 countries and more than 90,000 colleagues. The company generates annual revenue exceeding $24 billion through four market-leading businesses: Marsh (risk management), Guy Carpenter (reinsurance and capital), Mercer (people and investments), and Oliver Wyman (management consulting).
The firm advises organizations on an expanding range of risks and strategic challenges, from traditional insurance and risk management to emerging concerns including cyber threats, climate resilience, geopolitical instability, and economic disruption. Its approach integrates expertise across risk, capital, people, and strategy to help clients navigate complex environments.
With a history spanning over 150 years, Marsh McLennan maintains partnerships with Bloomberg and the World Economic Forum, and participates in influential global forums. The firm operates at the intersection of risk advisory, human capital consulting, investment management, and organizational strategy.