How many employees work at ACCO Engineered Systems?
ACCO Engineered Systems, Inc. has 3,647 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 8.0%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About ACCO Engineered Systems
Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than 250,000 mechanical projects. ACCO is dedicated to the design, fabrication, installation, maintenance and service of commercial and industrial HVAC, refrigeration, plumbing, process piping, and building automation systems. ACCO offers complete in-house engineering, fabrication, installation, commissioning, and service capabilities. This integrated delivery system provides customers with the most practical, cost effective solutions for their particular mechanical and control system requirements. Through innovative engineering, comprehensive design solutions, consistent work quality, and qualified maintenance; ACCO confidently delivers the best possible solution. Over the years, we've grown at a dynamic pace, becoming one of the largest mechanical contractors in the country. To accommodate our increasing product offerings, we’ve expanded with Sunbelt Controls, Sunbelt Electric, Smith MEP, Geo. H. Wilson, PLS Companies and AES Industrial. What’s great about working here is that we’re a big enough company to be the leader in HVAC mechanical contracting in California and the Southwest U.S., but as a 100% employee-owned ESOP, we’re a private company with a family-oriented feel. Together, the employees of ACCO are comprised of intelligent, dedicated, and entrepreneurial team members who enjoy what they do. Several of our employees have worked at ACCO for twenty-five, thirty, and even over forty years! Follow our page to receive updates and job posting notifications. ACCO is an Equal Opportunity Employer AA M/F/V/D.
As of December 2025
ACCO Engineered Systems
workforce metrics
Headcount
3.6k
Avg. Salary
$100.3k
Tenure
4.7yr
Growth Rate
8.0%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of ACCO Engineered Systems annual worldwide employee count from 2023 to 2025.
- ACCO Engineered Systems total number of employees in 2025 was 3,519, a 8.0% increase from 2024.
- ACCO Engineered Systems total number of employees in 2024 was 3,249, a 2.6% increase from 2023.
- ACCO Engineered Systems total number of employees in 2023 was 3,167, a 0.6% decline from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of ACCO Engineered Systems annual active job postings from 2023 to 2025.
- ACCO Engineered Systems active job postings in 2025 was 275, a 82.8% increase from 2024.
- ACCO Engineered Systems active job postings in 2024 was 114, a 6.8% decline from 2023.
- ACCO Engineered Systems active job postings in 2023 was 122, a 85.2% decline from 2022.
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Employee Sentiment
Sentiment Topics
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