How many employees work at Aon?
Aon Plc (AON) has approximately 62,180 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Aon’s total headcount has grown 18.3% from 52,544 employees in 2023 to 62,180 in 2026.
Is Aon hiring right now?
Yes, Aon is actively hiring. Aon had 4,425 active job postings in 2026, a 5.9% increase from 2025 — see job openings & hiring trends.
About Aon’s Workforce
Aon Plc (AON) is a Financial Services company that employs 62,180 people worldwide as of March 2026. It is the largest by headcount among its peers. Founded in 1982, the company is headquartered in Dublin, Ireland and trades on the New York Stock Exchange.
Aon's workforce has grown 18.3% from 2023 to 2026, up 3.0% year over year in 2026. Its workforce is concentrated most in North America (31.4%), followed by South Asia (19.0%) and Northern Europe (10.1%).
Aon's functional groups are Finance and Operations (50.6%), Engineering (28.5%), and Sales and Marketing (20.9%), with Finance and Operations growing fastest (up 4.2%). The average salary is $66,964, ranging from a median of $94,000 in North America to $8,000 in South Asia, down 1.6% year over year in 2026.
Aon's active job postings rose 5.9% in 2026 to 4,425, with new postings per month cooling from 4,047 in 2023 to 2,827 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
- Ticker
- New York Stock Exchange: AON
- Headquarters
- Dublin, Ireland
- Founded
- 1982
- Industry
- Financial Services
- Employees
- 62,180
- YoY
- +3.0% (+4,939)
As of March 2026
Aon workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Aon. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsAon Annual Employee Count (2023-2026)
- Aon had 62,180 employees in 2026, a 3.0% increase (+4,939) from 2025.
- Aon had 60,286 employees in 2025, a 3.4% increase (+4,170) from 2024.
- Aon had 56,116 employees in 2024, a 4.0% increase (+3,079) from 2023.
- Aon had 53,037 employees in 2023, a 2.3% increase (+1,726) from 2022.
Aon's total workforce has grown from 52,544 employees in 2023 to 62,180 in 2026.
Aon Plc quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 62,180 | +4,939 | +3.0% |
| 2025 | Q4 | 60,286 | +4,170 | +3.4% |
| 2025 | Q3 | 59,250 | +4,182 | +4.0% |
| 2025 | Q2 | 58,507 | +4,124 | +4.5% |
| 2025 | Q1 | 57,241 | +3,730 | +4.5% |
| 2024 | Q4 | 56,116 | +3,079 | +4.0% |
| 2024 | Q3 | 55,068 | +2,302 | +3.2% |
| 2024 | Q2 | 54,383 | +1,839 | +2.6% |
| 2024 | Q1 | 53,511 | +1,660 | +2.3% |
| 2023 | Q4 | 53,037 | +1,726 | +2.3% |
| 2023 | Q3 | 52,766 | +1,967 | +2.4% |
| 2023 | Q2 | 52,544 | +2,461 | +2.7% |
See Aon's complete headcount history, including quarterly breakdowns.
Get the DataAon Employee Count by Region (2026)
North America accounts for the largest share of Aon's global workforce with approximately 31% of total employees, followed by South Asia and Northern Europe.
Aon employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 19,371 | 31.4% |
| South Asia | 11,710 | 19.0% |
| Northern Europe | 6,204 | 10.1% |
| Sub-Saharan Africa | 4,322 | 7.0% |
| Southeast Asia | 3,141 | 5.1% |
| Western Europe | 3,132 | 5.1% |
| South America | 2,290 | 3.7% |
| Southern Europe | 2,218 | 3.6% |
| Arab States | 1,960 | 3.2% |
| Pacific Islands | 1,905 | 3.1% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataAon Employee Count by Department (2026)
Aon's employee groups are Finance and Operations (50.6%), Engineering (28.5%), and Sales and Marketing (20.9%).
Aon employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 31,172 | 50.6% |
| Engineering | 17,597 | 28.5% |
| Sales and Marketing | 12,885 | 20.9% |
Compare Aon's department mix to industry peers.
See Full DataAon Employee Salary by Region (2026)
Aon's average employee salary is $66,964 globally. Employees in North America receive the highest compensation, with median pay approximately 1.4x the global average. Pay is lowest in South Asia, at a median of $8,000.
Aon median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $94,000 |
| Northern Europe | $77,000 |
| Pacific Islands | $71,000 |
| Western Europe | $69,000 |
| East Asia | $49,000 |
| Southern Europe | $43,000 |
| Arab States | $31,000 |
| Eastern Europe | $29,000 |
| Central America and the Caribbean | $23,000 |
| Central and Western Asia | $17,000 |
| South America | $16,000 |
| Southeast Asia | $15,000 |
| Sub-Saharan Africa | $9,000 |
| South Asia | $8,000 |
| North Africa | $8,000 |
Unlock salary by role, level, and city — and compare to Aon's industry peers.
Unlock Salary DataAon Job Openings and Hiring Trends (2023-2026)
- Aon had 4,425 active job postings in 2026, a 5.9% increase (+422) from 2025.
- Aon had 4,003 active job postings in 2025, a 14.8% decline (-640) from 2024.
- Aon had 4,643 active job postings in 2024, a 21.8% decline (-1,135) from 2023.
- Aon had 5,778 active job postings in 2023, a 22.9% increase from 2022.
- Hiring velocity in 2026: 2,827 new roles/month, down from 3,443 in 2025 and 3,515 in 2024.
Aon's active job postings rose 5.9% in 2026 to 4,425, with new postings per month cooling from 4,047 in 2023 to 2,827 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataAon Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Aon's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
Frequently Asked Questions About Aon
- How fast is Aon growing?
- In 2026, Aon's headcount grew 3.0% to 62,180 employees, up from 57,241 in 2025.
- See the full headcount history
- Where are Aon employees located?
- Most Aon employees are based in North America (31.4% of headcount), followed by South Asia and Northern Europe.
- Explore where the workforce is based
- What is the average salary at Aon?
- The average employee salary at Aon is approximately $67k per year.
- Analyze the salary distribution
- How many new job postings does Aon open per year?
- In Q1 2026, Aon opened 8,482 new job postings. In 2025, Aon opened 41,312 new job postings — about 3,443 per month.
- Track hiring trends by role
- When was Aon founded and where is it headquartered?
- Aon was founded in 1982 and is headquartered in Dublin, Ireland.
- Compare Aon to industry peers
Speak with a workforce expert about Aon.
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