How many employees work at Marsh & McLennan Agency?
Marsh & McLennan Agency LLC has 17,139 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 5.4%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
About Marsh & McLennan Agency
Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits, retirement, and private client insurance solutions to organizations and individuals seeking limitless possibilities. With over 9,000 colleagues and 160 offices across the United States and Canada, MMA combines the personalized service model of a local consultant with the global resources and expertise of the world’s leading professional services firm, Marsh McLennan (NYSE: MMC). MMA generates more than $2 billion in annualized revenue, making it one of the largest brokerage operations in North America.
As of September 2025
Marsh & McLennan Agency
workforce metrics
Headcount
17.1k
Avg. Salary
$100.4k
Tenure
6.5yr
Growth Rate
5.4%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of Marsh & McLennan Agency annual worldwide employee count from 2023 to 2025.
- Marsh & McLennan Agency total number of employees in 2025 was 17,171.682, a 5.4% increase from 2024.
- Marsh & McLennan Agency total number of employees in 2024 was 16,212.271, a 5.0% increase from 2023.
- Marsh & McLennan Agency total number of employees in 2023 was 15,461.058, a 4.8% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Marsh & McLennan Agency annual active job postings from 2023 to 2025.
- Marsh & McLennan Agency active job postings in 2025 was 4,456, a 68.6% decline from 2024.
- Marsh & McLennan Agency active job postings in 2024 was 13,536, a 102.1% increase from 2023.
- Marsh & McLennan Agency active job postings in 2023 was 4,387, a 71.5% increase from 2022.
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Employee Sentiment
Sentiment Topics
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