Matrix Service Company provides engineering, fabrication, construction, and maintenance services primarily to oil, gas, power, petrochemical, industrial, and mining and minerals markets principally in the United States and Canada. Its Electrical Infrastructure segment primarily provides high voltage services, including construction of new substations, upgrade of existing substations, short-run transmission line installations, distribution upgrades and maintenance, and storm restoration services to investor owned utilities, as well as offers construction and maintenance services to various power generation facilities, such as combined cycle plants, nuclear facilities, coal fired power stations, and renewable energy installations. The company's Oil Gas & Chemical segment offers turnaround, plant maintenance, and construction services in the downstream petroleum industry; and industrial cleaning services, which include hydro blasting, hydro excavating, chemical cleaning, and vacuum services, as well as performs work in the renewable energy, industrial and natural gas, gas processing and compression, and upstream petroleum markets. Its Storage Solutions segment engages in the new construction of and in the provision of planned and emergency maintenance services for crude and refined products aboveground storage tanks. This segment undertakes work related to specialty storage tanks, including liquefied natural gas, liquid nitrogen/liquid oxygen, liquid petroleum tanks, and other specialty vessels, such as spheres; and plant work in storage terminals and tank farms. The company's Industrial segment performs work in the mining and minerals industry, bulk material handling, and thermal vacuum chambers, as well as undertakes work for clients in other industrial and manufacturing markets. Matrix Service Company was founded in 1984 and is headquartered in Tulsa, Oklahoma.