Company Overview Founded in 1987, MasTec Civil (formerly known as Condotte America), a MasTec Company, is a heavy highway contractor specializing in the construction of complex transportation projects that include roadway, bridges, interchanges, mass transit, and tolling facilities. In infrastructure, we specialize in general heavy civil construction, underground utilities, structures, electrical work, material production, roadways, bridges, specialty pavement overlays, environmental projects and commercial buildings.