Latest headcount
60,000
YoY change
0.0%
Headcount CAGR
+2.7%
Revenue / employee
$286.4K
Employee count history for Aon
| Fiscal year | Employees |
|---|---|
| 1996 | 28,000 |
| 1997 | 40,000 |
| 1998 | 44,000 |
| 1999 | 50,000 |
| 2000 | 51,000 |
| 2001 | 53,000 |
| 2002 | 55,000 |
| 2003 | 54,000 |
| 2004 | 48,000 |
| 2005 | 46,600 |
| 2006 | 43,100 |
| 2007 | 42,500 |
| 2008 | 37,700 |
| 2009 | 36,200 |
| 2010 | 59,000 |
| 2011 | 62,000 |
| 2012 | 66,000 |
| 2013 | 66,000 |
| 2014 | 69,000 |
| 2015 | 69,000 |
| 2016 | 69,000 |
| 2017 | 50,000 |
| 2018 | 50,000 |
| 2019 | 50,000 |
| 2020 | 50,000 |
| 2021 | 50,000 |
| 2022 | 50,000 |
| 2023 | 50,000 |
| 2024 | 60,000 |
| 2025 | 60,000 |
Revenue per employee for Aon
Annual revenue divided by reported headcount, normalized to US dollars.
| Fiscal year | Revenue per employee (USD) |
|---|---|
| 1996 | $138.9K |
| 1997 | $143.8K |
| 1998 | $147.6K |
| 1999 | $141.4K |
| 2000 | $143.5K |
| 2001 | $140.1K |
| 2002 | $135.3K |
| 2003 | $181.7K |
| 2004 | $211.9K |
| 2005 | $142.7K |
| 2006 | $159.7K |
| 2007 | $173.2K |
| 2008 | $199.7K |
| 2009 | $209.8K |
| 2010 | $144.3K |
| 2011 | $182K |
| 2012 | $174.5K |
| 2013 | $179K |
| 2014 | $174.6K |
| 2015 | $137.4K |
| 2016 | $136.4K |
| 2017 | $200K |
| 2018 | $215.4K |
| 2019 | $220.3K |
| 2020 | $221.3K |
| 2021 | $243.9K |
| 2022 | $249.6K |
| 2023 | $267.5K |
| 2024 | $261.6K |
| 2025 | $286.4K |
Earnings per employee for Aon
Annual net income divided by reported headcount, normalized to US dollars; years with a net loss dip below zero.
| Fiscal year | Earnings per employee (USD) |
|---|---|
| 1996 | $11.9K |
| 1997 | $7.5K |
| 1998 | $12.3K |
| 1999 | $7K |
| 2000 | $9.3K |
| 2001 | $2.8K |
| 2002 | $8.5K |
| 2003 | $11.6K |
| 2004 | $11.4K |
| 2005 | $15.8K |
| 2006 | $16.7K |
| 2007 | $20.3K |
| 2008 | $38.8K |
| 2009 | $20.6K |
| 2010 | $12K |
| 2011 | $15.8K |
| 2012 | $15K |
| 2013 | $16.9K |
| 2014 | $20.2K |
| 2015 | $20.1K |
| 2016 | $20.2K |
| 2017 | $24.5K |
| 2018 | $22.7K |
| 2019 | $30.6K |
| 2020 | $39.4K |
| 2021 | $25.1K |
| 2022 | $51.8K |
| 2023 | $51.3K |
| 2024 | $44.2K |
| 2025 | $61.6K |
Employee count history for Aon (AON)
Annual figures come from annual reports (10-K, or 20-F/40-F for foreign filers); interim rows reflect headcount disclosed in periodic filings. Year-over-year change compares each filing with the prior year's equivalent. Revenue and earnings per employee are annual figures normalized to US dollars.
- 202560,0000.0%
- 202460,000+20.0%
- 202350,0000.0%
- 202250,0000.0%
- 202150,0000.0%
- 202050,0000.0%
- 201950,0000.0%
- 201850,0000.0%
- 201750,000-27.5%
- 201669,0000.0%
- 201569,0000.0%
- 201469,000+4.5%
- 201366,0000.0%
- 201266,000+6.5%
- 201162,000+5.1%
- 201059,000+63.0%
- 200936,200-4.0%
- 200837,700-11.3%
- 200742,500-1.4%
- 200643,100-7.5%
- 200546,600-2.9%
- 200448,000-11.1%
- 200354,000-1.8%
- 200255,000+3.8%
- 200153,000+3.9%
- 200051,000+2.0%
- 199950,000+13.6%
- 199844,000+10.0%
- 199740,000+42.9%
- 199628,000—
- 199527,000+107.7%
- 199413,000—
About Aon's employee count
Aon (AON) employed 60,000 people in fiscal year 2025, based on its most recent annual report. That headcount was unchanged from 60,000 a year earlier.
Across the 1996–2025 period, the company's reported workforce went from 28,000 to 60,000 employees — a compound annual growth rate (CAGR) of +2.7% per year.
Aon generated about $286.4K of revenue and $61.6K of net income per employee in its latest annual period. Revenue and earnings per employee gauge how efficiently a company turns headcount into output, and are most telling when tracked over time or compared with peers in the same industry.
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