Founded in 1929, MasTec is one of the largest communications and utility infrastructure builders in the United States. It designs, builds, maintains and upgrades telephone, high-speed Internet, electric, water, sewer and natural gas systems. The company provides maintenance services for satellite and cable televisions. MasTec offers buried plant surveys and civil and electrical engineering services. It also provides installation of copper lines, buried and aerial fiber optic cables, electrical distribution and transmission systems, and communications network and energy system components. Additionally, it operates a fleet of backhoes, trenchers and bucket trucks that helps in the construction of fiber optic highways, power delivery and natural gas systems, and cable and satellite television networks. MasTec maintains a location in Memphis, Tenn.