Matrix Service Company operates as an open shop contractor for a significant portion of its industrial engineering, construction, and maintenance projects, meaning it employs non-union workers alongside specialized subcontractors. However, depending on the specific geographic region, local labor market conditions, and the precise requirements of individual project owners, the company also engages union labor or enters into project-specific labor agreements when necessary. This flexible operational model allows the company to bid competitively on a wide array of industrial construction contracts across North America, adapting seamlessly to regional labor dynamics whether working in union-dense territories or right-to-work states. Prospective field personnel and trade workers should inquire directly about the labor classification of specific project sites during the interview process.