About Us

56,000 Colleagues Enabling Enterprise All Over the World.

Marsh & McLennan Companies is a professional services firm like no other — a global network of 56,000 experts in risk, strategy, and human capital, united by an unusually collaborative culture that transcends business units and borders.

We bring the best people together to help clients discern new possibilities and pursue them with success.

For more than 140 years, we have grown by helping our clients prosper amid changing times and technologies, from the Industrial Revolution to the digital age. Our work today embraces many of society’s most complex challenges: sustainable business growth; the health, wealth, and performance of organizations' people; resource security; cyber security; economic instability; climate change; and terror threats.

Our people — at Marsh, Guy Carpenter, Mercer, and Oliver Wyman — are known for character, commitment to their clients' enterprise, and the temperament to overcome challenges. We are here for the long haul to help clients realize ambitious goals with the right plan, the right team, and the confidence that risks are fully addressed. Click here to download Marsh & McLennan Companies At A Glance.


Coordinated Approaches to Interrelated Challenges

Today’s business environment is more complex than ever. Economic uncertainty, supply chain disruption, commodity price fluctuations, cyber security, regulatory challenges, sustainability, and rising healthcare costs all present extraordinary challenges to business leaders. The risk, strategy, and human capital aspects of these issues are increasingly intertwined.

At the request of clients, we bring together teams from Marsh, Guy Carpenter, Mercer, and Oliver Wyman to partner with clients to address their complex challenges in a holistic, coordinated, and effective manner. Our approach is unique in the industry — we call it The MMC Advantage.

Can our scope work for you? To begin a conversation, please contact our Strategic Solutions team.