Insights

Regional Expansion ACCO is expanding its footprint with a new Pleasanton office and investments in Sparks, NV, signaling rising project volume for HVAC, refrigeration, plumbing, and building automation services across California and the Southwest. This creates opportunities for larger maintenance contracts, recurring service revenue, and multi site enterprise projects.

ESOP Advantage As a 100 percent employee owned company with long tenured staff, ACCO offers stability and deep expertise for complex mechanical projects, making it an attractive partner for clients seeking reliable delivery and scalable service agreements. This supports cross selling of ongoing service, remote monitoring, and preventive maintenance programs.

Turnkey Capabilities ACCO provides end to end in house engineering, fabrication, installation, commissioning and service for HVAC, refrigeration, plumbing, process piping and building automation, allowing turnkey proposals for large industrial and commercial facilities. Opportunities exist to bundle design and maintenance under long term service agreements and energy performance contracts.

Financial Growth With a revenue range of one to ten billion and strategic finance leadership, ACCO is positioned to pursue sizeable multi site projects, energy efficiency retrofits, and capital expenditure programs for growing regional clients. Leverage the financial resilience to win larger RFPs and multi site rollouts.

Market Position A strong regional footprint in California and the Southwest, supplemented by partnerships with Sunbelt controls and other regional firms, positions ACCO to win large, integrated mechanical projects and offer bundled services in sustainability, safety, and building automation.

ACCO Engineered Systems Tech Stack

ACCO Engineered Systems uses 8 technology products and services including HIPAA, Gmail, Microsoft Intune, and more. Explore ACCO Engineered Systems's tech stack below.

  • HIPAA
    Electronic Health Records
  • Gmail
    Email
  • Microsoft Intune
    Enterprise Mobility Management
  • Zapier
    IT Infrastructure
  • NexTraq
    Logistics
  • macOS
    Operating Systems & Computing Languages
  • Yoast SEO
    Search Engines
  • Apache
    Web Servers

Media & News

ACCO Engineered Systems's Email Address Formats

ACCO Engineered Systems uses at least 2 format(s):
ACCO Engineered Systems Email FormatsExamplePercentage
FLast@accoes.comJDoe@accoes.com
97%
FiLast@accoes.comJoDoe@accoes.com
1%
LFirst@accoes.comDJohn@accoes.com
2%
FLast@accoservice.comJDoe@accoservice.com
96%
LFirst@accoservice.comDJohn@accoservice.com
2%
FirLast@accoservice.comJohDoe@accoservice.com
1%
FiLast@accoservice.comJoDoe@accoservice.com
1%

Frequently Asked Questions

Where is ACCO Engineered Systems's headquarters located?

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ACCO Engineered Systems's main headquarters is located at 888 East Walnut Street Pasadena, California 91101 United States. The company has employees across 6 continents, including North AmericaEuropeAfrica.

What is ACCO Engineered Systems's phone number?

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You can contact ACCO Engineered Systems's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is ACCO Engineered Systems's official website and social media links?

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ACCO Engineered Systems's official website is accoes.com and has social profiles on LinkedIn.

What is ACCO Engineered Systems's NAICS code?

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ACCO Engineered Systems's NAICS code is 23 - Construction.

How many employees does ACCO Engineered Systems have currently?

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As of June 2026, ACCO Engineered Systems has approximately 2.7K employees across 6 continents, including North AmericaEuropeAfrica. Key team members include Ceo: A. S.Chief Financial Officer: H. N.Chief Financial Officer: R. B.. Explore ACCO Engineered Systems's employee directory with LeadIQ.

What industry does ACCO Engineered Systems belong to?

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ACCO Engineered Systems operates in the Construction industry.

What technology does ACCO Engineered Systems use?

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ACCO Engineered Systems's tech stack includes HIPAAGmailMicrosoft IntuneZapierNexTraqmacOSYoast SEOApache.

What is ACCO Engineered Systems's email format?

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ACCO Engineered Systems's email format typically follows the pattern of FLast@accoes.com. Find more ACCO Engineered Systems email formats with LeadIQ.

ACCO Engineered Systems

ConstructionCalifornia, United States1001-5000 Employees

ACCO Engineered Systems designs, installs, and maintains mechanical systems for commercial and industrial projects, including HVAC, refrigeration, plumbing, process piping, and building automation. The company provides in-house engineering, fabrication, installation, commissioning, and ongoing service, delivering integrated solutions that address both mechanical and control system needs. This turnkey model coordinates design, fabrication, installation, commissioning, and ongoing service under a single delivery system.

Founded in 1934 and based in Pasadena, California, ACCO has grown into a major mechanical contractor serving California and the Southwest. It operates as a private, employee-owned ESOP and has expanded its capabilities through affiliations with Sunbelt Controls, Sunbelt Electric, Smith MEP, Geo. H. Wilson, PLS Companies, and AES Industrial, while also broadening its footprint with a Pleasanton, California office opened in 2025.

Section iconCompany Overview

Headquarters
888 East Walnut Street Pasadena, California 91101 United States
Phone number
Website
accoes.com
NAICS Code
23 - Construction
Employees
1001-5000

Section iconFunding & Financials

  • $1B$10B

    ACCO Engineered Systems's revenue is estimated to be in the range of $1B$10B

Section iconFunding & Financials

  • $1B$10B

    ACCO Engineered Systems's revenue is estimated to be in the range of $1B$10B

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