Submarine Boat Company (Submarine Boat Corporation) was a large-scale World War I ship manufacturing shipyard, located at Newark, New Jersey's Port of Newark. Submarine Boat Company operated as a subsidiary of the Electric Boat Company, now General Dynamics Electric Boat. Submarine Boat Company was founded in April 1915 to meet the demand for ships for World War I. Submarine Boat Corporation built the Design 1023 ships, this was a steel-hulled cargo ship. Submarine Boat Company built merchant cargo ships from 1917 to 1922. Submarine Boat Company was to able to complete ships quickly as they had other shipyards prefabricate about 80% of the hull. Submarine Boat Company worked with: Merchant Shipbuilding Corporation in Bristol, Pennsylvania, and American International Shipbuilding, in Hog Is