About Marsh McLennan
MARSH & McLENNAN COMPANIES

About Marsh McLennan


At Marsh McLennan, we bring clarity to complexity with the depth and range of our expertise. It’s why we take on challenges with a bold and unified Purpose: We build the confidence to thrive through the power of perspective.

For more than 150 years, we’ve been helping clients find the right way forward in the areas of risk, strategy and people. With over 90,000 colleagues working across 130 countries, we’re dedicated to advising clients across sectors.


Our heritage
Our shared commitments help you thrive

  • As committed partners, we work with curiosity, care and integrity to understand your needs and enable your success.
  • Our unique expertise is evident in the capabilities we bring — from data-driven insights to deep industry knowledge and experience — to clarify your view of present and future risks and opportunities.
  • With actionable solutions and practical strategies, we collaborate to solve your most pressing challenges, delivering results that help businesses and communities thrive.


Explore our capabilities

We bring together insights from across our four global businesses to help clients confidently navigate challenges on the way to game-changing success. Our annual revenue exceeds $24 billion, reflecting our commitment to excellence and the strength of our capabilities. We’re well positioned to address the most complex challenges of our time through our four market-leading businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman.


Our capabilities
Insurance Broking and Risk Management
Provides risk advisory services and insurance solutions for a broad range of clients.
Visit Marsh
Reinsurance and Capital Strategies
Develops advanced risk, reinsurance and capital strategies that help clients grow profitably and pursue emerging opportunities.
Visit Guy Carpenter
Investments, Retirement, Health and Career Consulting
Helping clients achieve their investment goals, shape the future of work and improve health and retirement outcomes.
Visit Mercer
Strategy, Economic and Brand Consulting
Combines deep industry knowledge with specialized expertise to help clients optimize their business, improve operations and accelerate performance.
Visit Oliver Wyman
Our culture

We are committed to creating a vibrant and inclusive culture where colleagues can be their best.

Learn more
Our culture

We are committed to creating a vibrant and inclusive culture where colleagues can be their best.

Learn more
Our leadership and governance

We are guided by a group of innovative and experienced executives.

Meet our leaders
Our leadership and governance

We are guided by a group of innovative and experienced executives.

Meet our leaders
Our career opportunities

We are a global workforce of exceptionally talented colleagues who thrive on creativity, forward-thinking and giving back. 

Join our team
Our career opportunities

We are a global workforce of exceptionally talented colleagues who thrive on creativity, forward-thinking and giving back. 

Join our team