Marsh McLennan

Marsh McLennan is a global professional services firm offering risk, strategy, and people solutions through its four main businesses: Marsh (insurance brokerage), Guy Carpenter (reinsurance), Mercer (HR and benefits consulting), and Oliver Wyman (management consulting). Headquartered in New York and operating in over 100 countries, the firm advises clients on risk management, capital allocation, workforce strategy, and digital transformation. Marsh McLennan plays a central role in global insurance markets and corporate advisory, serving clients across all sectors with both data-led insights and specialist consulting. It is a key partner to corporates, governments, and insurers in addressing challenges from climate risk to healthcare costs to cyber threats.