How many employees work at Marsh & McLennan Agency?
Marsh & McLennan Agency LLC has 12,350 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 3.2%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 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 December 2025
Marsh & McLennan Agency
workforce metrics
Headcount
12.3k
Avg. Salary
$102.1k
Tenure
6.5yr
Growth Rate
3.2%
Hiring Rate
Attrition Rate
For even more metrics data,
reach out to our sales team.
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 12,340, a 3.2% increase from 2024.
- Marsh & McLennan Agency total number of employees in 2024 was 11,951, a 5.2% increase from 2023.
- Marsh & McLennan Agency total number of employees in 2023 was 11,350, a 5.3% increase from 2022.
Would you like to see the latest employee headcount data?
Employee Geographic Breakdown
Would you like to see the latest employee geographic data?
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 1,526, a 65.2% decline from 2024.
- Marsh & McLennan Agency active job postings in 2024 was 3,003, a 137.1% increase from 2023.
- Marsh & McLennan Agency active job postings in 2023 was 560, a 22.5% decline from 2022.
Would you like to see the latest active job postings data?
Employee Sentiment
Sentiment Topics
Would you like to see the latest employee sentiment data?