ACCO Engineered Systems is one of the largest mechanical contractors in the United States, providing comprehensive services in HVAC, refrigeration, plumbing, process piping, automation systems, and energy management. Founded in 1934, the company operates primarily in Los Angeles and across the western United States, serving sectors including technology, healthcare, government, and commercial real estate.
The company specializes in mission-critical mechanical solutions, offering a one-stop shop approach for customized engineered systems. This model provides single-point accountability for projects requiring high-reliability infrastructure. Its capabilities in energy management and automation systems support facilities with stringent uptime and efficiency requirements.
As an employee-owned company, ACCO Engineered Systems emphasizes energy efficiency and sustainability in its operations and project delivery. Its long-standing presence in the mechanical contracting industry is supported by a technical focus on building and industrial systems that serve critical environments.
