Huntington Ingalls Industries Inc. is a U.S. defense shipbuilding company headquartered in Newport News, Virginia. It designs and builds non-nuclear and nuclear-powered vessels through its Ingalls and Newport News segments, supporting programs such as amphibious assault ships, surface combatants, destroyers, aircraft carriers, and submarines. The company also provides ship maintenance, refueling, overhaul, and inactivation services that extend the operational life of naval fleets. Through its Mission Technologies segment, Huntington Ingalls Industries delivers technology, unmanned systems, life-cycle sustainment, and mission support services for defense, intelligence, and federal civilian customers. Its work plays a central role in maritime defense infrastructure and advanced support capabilities across the U.S. government and related industries.