Company Insights
Published on
April 22, 2026

How Many People Work at AECOM? Headcount and Employee Trends

Total Employees
51000
7.2% from last year
0
New Hires (YTD)
249
5% of total workforce
Departments
19
650 in Engineering
Locations
1136
5,012 in New York, NY
  • AECOM (NYSE: ACM) is a global leader in infrastructure and environmental services, providing integrated solutions across various sectors including defense, transportation, and water management.
  • In March 2026, AECOM secured a significant contract with the U.S. Missile Defense Agency under the SHIELD strategy, which has a budget ceiling of $151 billion, to support national defense infrastructure.
  • The company has established partnerships with federal agencies, exemplified by its role in the SHIELD contract, which emphasizes its capability to deliver mission-critical projects for national security.
  • AECOM's ideal buyers include government agencies and large corporations seeking innovative infrastructure solutions, particularly those focused on enhancing operational readiness and modernizing defense capabilities.

AECOM Headcount Breakdown by Department

AECOM's workforce is organized across 19 departments, with a significant concentration in Operations, which employs 7,641 individuals. Information Technology follows closely with 6,278 employees, reflecting the company's commitment to technological advancement. The Executive department, with 3,298 personnel, underscores the leadership structure supporting the company's strategic initiatives. This balanced departmental mix indicates a robust operational framework essential for effective project delivery.

Operations
7641
Information Technology
6278
Executive
3298
Engineering
1947
Education
971
Finance
898
Community And Social Services
747
Marketing
608
Human Resources
467
Other
7401

AECOM Employees by Location

The company operates in 1,136 locations, with a notable presence in major cities. Los Angeles, CA, leads with 2,305 employees, followed by San Francisco, CA, with 1,453, and Arlington, VA, with 1,245. The distribution pattern shows a significant concentration in urban centers, while the 'Other' category encompasses a large number of locations, indicating a widespread operational footprint across various regions.

Los Angeles, CA
2305
San Francisco, CA
1453
Arlington, VA
1245
New York, NY
773
Phoenix, AZ
562
Denver, CO
442
Washington, District Of Columbia
344
Sacramento, CA
216
Houston, TX
211
Other
16697
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