Companies: 10,795·Total market cap: $144.5T
Aon plc

Aon plc

AONNYSEFinancial Services● Active
$328.53
+$6.29(+1.95%)
Market Cap$70.2B
P/E Ratio—
52W High$381
52W Low$304.59
EmployeesOwnershipInsider Trades

Aon plc (AON) Number of Employees – History & Annual Headcount

Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.

SEC EDGAR · FMP · AON · as of Feb 13, 2026

Latest filing snapshot

60,000
+0+0.00%vs prior year

Aon plc (AON) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗

SEC 10-K·Period end: 2025-12-31·Full-time · Global
Total Employees
60,000
Change (1Y)
+0
Growth % (1Y)
+0.00%
Revenue / Employee
$286.4K
Net Income / Employee
$61.6K
Market Cap
$70.2B

AON Employee Count

1994 – 2025 · Annual · SEC filing

Source: SEC annual filings · Hover bar to view year data · Click to view original filing

Employees History

Filing DateEmployeesChange (1Y)Growth (1Y)SEC filing link
2026-02-1360,000+0+0.00%
2025-02-1860,000+10,000+20.00%
2024-02-1650,000+0+0.00%
2023-02-1750,000+0+0.00%
2022-02-1850,000+0+0.00%
2021-02-1950,000+0+0.00%
2020-02-1450,000+0+0.00%
2019-02-1950,000+0+0.00%
2018-02-2050,000-19,000-27.54%
2017-02-2369,000+0+0.00%

▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.

Related Companies — Employee Count

Insurance - Brokers
#SymbolCompanyEmployees
#1
The Bank of Nova Scotia
BNS
The Bank of Nova Scotia
88,722#2
Arthur J. Gallagher & Co.
AJG
Arthur J. Gallagher & Co.
72,000#3
Aon plc
AON
Aon plcYOU
60,000#4
ING Groep N.V.
ING
ING Groep N.V.
60,000#5
The Bank of New York Mellon Corporation
BK
The Bank of New York Mellon Corporation
51,000#6
Canadian Imperial Bank of Commerce
CM
Canadian Imperial Bank of Commerce
48,698#7
Apollo Global Management, Inc.
APO
Apollo Global Management, Inc.
5,141
Source: /stock-peers + /profile.fullTimeEmployees · Click row → /employees · Sorted by headcount · AON peer comparison

About AON employees

AON Employees · Headcount

Aon plc (AON) employee data is sourced from the annual SEC 10-K filing. As of 2025, Aon plc had 60,000 full-time employees globally. Full-time employees only. Global consolidated headcount.

Aon plc employs 60,000 full-time employees as of the latest filing within the Insurance - Brokers industry. Revenue per employee stands at $286,350, reflecting the company's operational efficiency.

Aon plc's workforce increased by 0 (0.00%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

Aon plc's revenue per employee of $286,350 positions it among the notable performers in the Insurance - Brokers sector for operational efficiency.

RevenueFinancial statementsNet incomeSEC filingsPrice historyForecast & ratingsOwnershipEarnings

Frequently Asked Questions

AON Employees · 5 questions

As of the latest SEC 10-K filing (2025), Aon plc had 60,000 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

Aon plc employee counthow many employees does Aon plc haveAON total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-13