Huntington Ingalls Industries Inc (HII) is a defense partner specializing in building and delivering naval ships and technologies. The company designs and maintains nuclear and non-nuclear ships for the US Navy and Coast Guard. It designs, manufactures, tests, operates, and sustains uncrewed systems, including uncrewed underwater vehicles and uncrewed surface vessels. The company's products and services encompass aircraft carriers, surface combatants, amphibious assault ships, transport dock ship, national security cutters, submarines, guided missile destroyers, submarines, and unmanned systems. HII primarily serves the US Government, especially the Department of Defense, and is involved in various high-priority defense programs. The company operates in the defense, civil, and commercial sectors, providing solutions in areas such as shipbuilding, technology integration, and cybersecurity.

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HII’s R&D arm focuses on independent research and development (IR&D) related to design, development, experimentation, and test activities for government programs. The company provides R&D services in the areas of intelligence, surveillance, and reconnaissance, military training and simulation, cyber, data analytics, and other next-generation technology-based solutions to the Department of Defense and intelligence community customers. The R&D unit of the company is HII’s R&D arm, which is responsible for managing the company's R&D activities. The company operates its research and development facility in New York that supports the US Navy. In FY2025, the company incurred an expenditure of US$26 million on R&D, which as a percentage of revenue stood at 0.2%.