Bath Iron Works

Bath Iron Works (BIW) is a major American shipyard located on the Kennebec River in Bath, Maine. Since its founding in 1884 (as Bath Iron Works, Limited), BIW has built private, commercial and military vessels, most of which have been ordered by the United States Navy. The shipyard has built and sometimes designed battleships, frigates, cruisers and destroyers, including the Arleigh Burke-class, which are currently among the world's most advanced surface warships.

Since 1995, Bath Iron Works has been a subsidiary of General Dynamics, the fifth-largest defense contractor in the world (as of 2008). During World War II, ships built at BIW were considered by sailors and Navy officials to be of superior toughness, giving rise to the phrase "Bath-built is best-built."