Fincantieri Marine Group is comprised of three Great Lakes Shipyards: Fincantieri Marinette Marine, builder of Freedom Class Littoral Combat Ships for the United States Navy; Fincantieri Bay Shipbuilding, specialists in construction, repair and conversion of United States Coast Guard (USCG) and commercial vessels; and Fincantieri ACE Marine, a state-of-the-art, climate controlled aluminum construction facility purposefully designed for assembly line manufacturing of aluminum vessels, using innovative modular construction techniques and component manufacturing. Fincantieri Marine Group (FMG) is the United States subsidiary of Italian shipbuilding giant Fincantieri, one of the world's largest shipbuilders, employing more than 19,000 shipbuilding professionals in 20 shipyards on four continents.