Company data
Aecom employees and revenue per employee
ACM · Engineering & Construction · $8.56B market cap
Aecom had 51,000 employees at the end of fiscal Sep 2025, unchanged from a year earlier. Revenue for the year was $16.1B, up 0.2% from a year earlier, or $316K per employee. Revenue held up or grew while headcount stayed flat or fell.
Employees
51,000
+0.0% YoY
Revenue
$16.1B
+0.2% YoY
Revenue / employee
$316K
Peer median $364K
Rank in industry
10 of 15
Engineering & Construction
Headcount against revenue
Both lines start at 100 in the first year we hold, so you can see which one grew faster.
Hover a year for the numbers.
| Year ending | Employees | Revenue | Per employee | Staff YoY | Revenue YoY |
|---|---|---|---|---|---|
| Sep 2025 | 51,000 | $16.1B | $316K | +0.0% | +0.2% |
| Sep 2024 | 51,000 | $16.1B | $316K | -1.9% | +12.0% |
| Sep 2023 | 52,000 | $14.4B | $277K | +4.0% | +9.4% |
| Sep 2022 | 50,000 | $13.1B | $263K | -2.0% | -1.4% |
| Sep 2021 | 51,000 | $13.3B | $262K | -5.6% | +0.8% |
| Sep 2020 | 54,000 | $13.2B | $245K | -37.2% | -3.0% |
| Sep 2019 | 86,000 | $13.6B | $159K | -1.1% | -1.7% |
| Sep 2018 | 87,000 | $13.9B | $160K | +0.0% | -23.8% |
| Sep 2017 | 87,000 | $18.2B | $209K | +0.0% | +4.6% |
| Sep 2016 | 87,000 | $17.4B | $200K | — | — |
Open roles: we have not matched a verified job board for this company yet.
Aecom against similar companies
The closest industry peers by revenue, from Engineering & Construction.
| Company | Employees | Revenue | Revenue / employee | Shape |
|---|---|---|---|---|
| FLR Fluor Corporation | 17,112 | $15.5B | $906K | Hiring into decline |
| PWR Quanta Services, Inc. | 69,500 | $28.4B | $408K | Efficient growth |
| FIX Comfort Systems USA, Inc. | 22,700 | $9.10B | $401K | Efficient growth |
| MTZ MasTec, Inc. | 36,000 | $14.3B | $397K | Efficient growth |
| EME EMCOR Group, Inc. | 44,000 | $17.0B | $386K | Efficient growth |
| ACM Aecom | 51,000 | $16.1B | $316K | Leaner |
| J Jacobs Solutions Inc. | 43,000 | $12.0B | $280K | Leaner |
| APG APi Group Corporation | 29,000 | $7.91B | $273K | Leaner |
| KBR KBR, Inc. | 36,000 | $7.79B | $216K | Leaner |
Questions about Aecom
- How many employees does Aecom have?
- Aecom reported 51,000 employees for the fiscal year ending Sep 2025, in the annual report it filed on November 19, 2025. That is unchanged from a year earlier.
- What is Aecom's revenue per employee?
- Aecom brought in $16.1B of revenue in fiscal Sep 2025, which is $316K per employee. That ranks 10 of 15 companies we track in Engineering & Construction, where the median is $364K.
- Where do these numbers come from?
- Employee counts and revenue are taken from each company's own annual report (Form 10-K). Open roles are counted from the company's public job board where we have matched one. Companies report headcount once a year, sometimes rounded, so small changes can be noise.
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Source: employee counts and revenue as stated in Aecom's annual reports (Form 10-K), latest filed November 19, 2025. This is data, not a recommendation to buy or sell ACM.