MasTec, Inc. engages in the provision of infrastructure construction services. It operates through the following segments: Communications; Oil and Gas; Electrical Transmissions; Power Generation and Industrial; and Other. The Communications segment performs engineering, construction, maintenance and customer fulfillment activities related to communications infrastructure, primarily for wireless and wireline/fiber communications, and install-to-the-home customers. The Oil and Gas segment offers services on oil and natural gas pipelines and processing facilities for the energy, and utilities industries. The Electrical Transmission segment serves the energy and utility industries through the engineering, construction, and maintenance of electrical transmission lines and substations. The Power Generation and Industrial segment covers energy, utility and other end-markets through the installation and construction of conventional and renewable power facilities, related electrical transmission infrastructure, ethanol/biofuel facilities, and various types of heavy civil and industrial infrastructure. The Other segment comprises of equity investees, other small business units that perform construction, and other services for a variety of international end-markets. The company was founded by Russell Burnup and Riley Sims in 1929 and is headquartered in Coral Gables, FL.