Northrop Grumman Ship Systems' Ingalls Operations is a subsidiary of Northrop Grumman Corporation (NYSE: NOC), and part of the corporation's Ship Systems (NGSS) Sector.
NGSS, headquartered in Pascagoula, Mississippi, includes the Ingalls Operations and the Ship Systems Full Service Center, both located in Pascagoula, as well as the Avondale Operations, located in New Orleans, Louisiana, Tallulah, Louisiana, and Gulfport, Mississippi. NGSS, which currently employs more than 17,000 shipbuilding professionals, primarily in Mississippi and Louisiana, is one of the nation's leading full service systems companies for the design, engineering, construction, and life cycle support of major surface ships for the U.S. Navy, U.S. Coast Guard and international navies, and for commercial vessels of all types.

• Seagoing ship
• Naval vessel
• Inland waterway craft
• Ship for special assignment