How many employees work at Aon?
Aon Plc has 64,155 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 8.1%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About Aon
We exist to shape decisions for the better — to protect and enrich the lives of people around the world. Our colleagues provide our clients in over 120 countries and sovereignties with advice and solutions that give them the clarity and confidence to make better decisions to protect and grow their business.
As of December 2025
Aon
workforce metrics
Headcount
64.2k
Avg. Salary
$70.4k
Tenure
5.1yr
Growth Rate
8.1%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of Aon annual worldwide employee count from 2023 to 2025.
- Aon total number of employees in 2025 was 64,077, a 8.1% increase from 2024.
- Aon total number of employees in 2024 was 59,068, a 5.2% increase from 2023.
- Aon total number of employees in 2023 was 56,099, a 3.2% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Aon annual active job postings from 2023 to 2025.
- Aon active job postings in 2025 was 3,278, a 12.2% decline from 2024.
- Aon active job postings in 2024 was 3,705, a 24.7% decline from 2023.
- Aon active job postings in 2023 was 4,749, a 10.0% increase from 2022.
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Employee Sentiment
Sentiment Topics
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