ACCO Engineered Systems, founded in 1934 and headquartered in Inglewood, California, is one of the largest mechanical contractors in the United States. The employee-owned company provides a comprehensive range of services for commercial and industrial mechanical systems, operating primarily across the Western United States and the Los Angeles area.
The firm's core business encompasses engineering, construction, fabrication, and facility services for mission-critical systems. Its technical domains include HVAC, refrigeration, plumbing, process piping, automation systems, and energy management. ACCO operates as a single-point accountability provider, delivering customized mechanical solutions to a variety of industry verticals.
ACCO serves sectors including healthcare, technology, government, commercial real estate, data centers, and pharmaceutical facilities. The company emphasizes a value-added, cost-effective one-stop-shop approach with a commitment to energy efficiency and sustainability in its project delivery.
