Mastec, Inc.
One of North America's largest infrastructure contractors, MasTec builds and maintains the physical networks behind everyday life—telecom and cable lines, power grids, pipelines, and clean-energy projects for utilities and energy firms. It was born in 1994 from a merger of Church & Tower, a firm led by Cuban immigrant Jorge Mas Canosa, and phone-cable builder Burnup & Sims. Its name blends the Mas family surname with "technology," a nod to its founders.