Since 1984, Matrix Service Company employees have earned our company a reputation for outstanding performance. Through our su ... bsidiaries - Matrix Service, Matrix NAC, Matrix PDM Engineering, and Matrix Applied Technologies - we provide engineering, procurement, fabrication and construction services as well as maintenance and repair to the energy and industrial markets. With a focus on sustainability, building strong Environment, Social and Governance (ESG) practices , and living our core values, Matrix ranks among the Top 100 Contractors by Engineering-News Record, was recognized by 2020 Women on Boards for its 28 percent female independent board directors, is an active signatory to CEO Action for Diversity and Inclusion, and is consistently recognized as a Great Place to Work®. Matrix Service Company is headquartered in Tulsa, Oklahoma with subsidiary offices throughout the U.S. and Canada, as well as in Sydney, Australia and Seoul, South Korea. read more