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ACCO Engineered Systems Tech Stack

Commercial and industrial mechanical contracting with in-house design, fabrication, and service.

Construction Pasadena, CA 5,001–10,000 employees Privately Held

ACCO Engineered Systems operates as a full-service mechanical contractor handling HVAC, refrigeration, plumbing, process piping, and building automation across commercial and industrial sectors. The company's tech stack is heavily weighted toward design and coordination tools—AutoCAD, Revit, Bluebeam, BIM 360, Navisworks—reflecting a design-build operating model where field execution depends on upstream engineering precision. Active hiring leans engineering (116 roles) and construction (51), with pain points centered on labor coordination, cost control, and timeline management, indicating the classic contractor challenge: translating complex designs into on-time, on-budget field delivery across dispersed teams.

Tech Stack 60 technologies

Core StackAutoCAD Adobe InDesign Adobe Illustrator Revit Smartsheet DynamoDB Python C# Microsoft Office Word Excel PowerPoint Microsoft Project Adobe Acrobat Bluebeam Photoshop Google Workspace Google Ariba IFS BIM Navisworks Manage Autodesk BIM 360 Autodesk BIM 360 Docs Bluebeam Revu Box Forge Revit API VB.NET F#+29 more

What ACCO Engineered Systems Is Building

Challenges

  • Cost control
  • Solving emergent operational challenges
  • Reducing risk
  • Field labor coordination
  • Managing field labor needs
  • Resolving labor disputes
  • Risk mitigation
  • Project timeline and budget issues
  • Managing multi-million dollar projects
  • Improving construction efficiency

Active Projects

  • Hvac and plumbing system startup and commissioning
  • Bid strategy development
  • Fuel program implementation
  • Commercial mep projects
  • Installation coordination
  • Preliminary design and proposal
  • Mechanical system commissioning
  • Market and revenue growth initiatives
  • Project construction coordination
  • Conceptual design through construction drawing development for multiple small and medium sized standard projects

Hiring Activity

Decelerating280 roles · 50 in 30d

Department

Engineering
116
Construction
51
Sales
50
Ops
29
Finance
11
HR
4
Legal
3
Logistics
3

Seniority

Mid
129
Senior
88
Manager
33
Intern
11
Junior
9
Lead
7
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About ACCO Engineered Systems

ACCO Engineered Systems is a mechanical contractor serving commercial and industrial clients across California and the Southwest. Founded in 1934, the company has completed more than 250,000 projects and operates as a 100% employee-owned ESOP with approximately 5,000–10,000 employees. The business spans design, fabrication, installation, commissioning, and ongoing service for HVAC, refrigeration, plumbing, process piping, and controls. ACCO has grown through acquisition and organic expansion, absorbing firms like Sunbelt Controls, Sunbelt Electric, Smith MEP, Geo. H. Wilson, PLS Companies, and AES Industrial to broaden service offerings. The company competes on integrated delivery—combining in-house engineering, fabrication, and commissioning to reduce customer coordination burden and cost.

HeadquartersPasadena, CA
Company Size5,001–10,000 employees
Hiring MarketsUnited States

Frequently Asked Questions

What software does ACCO use for design and project coordination?

AutoCAD, Revit, Bluebeam, Navisworks Manage, and Autodesk BIM 360 form the core design and coordination stack. Additional tools include Microsoft Project for planning, IFS for operations management, and DynamoDB and Forge for digital workflows.

Where is ACCO Engineered Systems headquartered?

ACCO is headquartered in Pasadena, California, and primarily hires across the United States, with operational focus in California and the Southwest region.

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