Marsh McLennan
Marsh McLennan Companies (MMC) is a global professional services firm that specializes in insurance brokerage, risk management, and consulting services. With a workforce of over 85,000 employees, the company operates in 130 countries, providing solutions to a diverse range of clients, including approximately 95% of Fortune 1000 companies. Founded in 1871, Marsh McLennan has a rich history marked by significant milestones, including its merger in 1905, which established it as a leading insurance agency. The company has expanded its capabilities through strategic acquisitions, such as the purchase of Johnson & Higgins in 1997 and Jardine Lloyd Thompson Group in 2019. MMC operates through two main segments: Risk & Insurance Services, which includes Marsh and Guy Carpenter, and Consulting, featuring Mercer and Oliver Wyman. In 2024, the company reported annual revenue of $24.5 billion, with a strong emphasis on risk and insurance services.
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Headcount trend
Marsh McLennan went from 9,925 employees in Jul 2023 to 11,528 in Jun 2025. Last 6 months: 967 people joined, 423 left.
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Marsh McLennan FAQ
How many employees does Marsh McLennan have?
Marsh McLennan has about 11,528 employees, up 1.6% over the last 3 months (as of Jun 2025).
What is Marsh McLennan's revenue per employee?
Marsh McLennan makes about $2.34M in revenue per employee, based on $26.98B annual revenue and 11,528 employees.
How much does Marsh McLennan pay?
6figr has 39 salary profiles for Marsh McLennan in the US and 26 in India, with pay broken down by role, level, gender and ethnicity on the Marsh McLennan salaries page. See Marsh McLennan salaries in the US
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles. Updated 27 Feb 2026.