Northrop Grumman took its current shape in 1994, when Northrop Corporation, maker of the B-2 stealth bomber, won a bidding contest with Martin Marietta to buy Grumman, the Long Island company behind the F-14 Tomcat and the Apollo Lunar Module. Facing falling post-Cold War budgets, the combined company kept buying: Westinghouse's defense electronics unit in 1996, Logicon in 1997, Litton in 2001 and TRW in 2002. It spun off its shipyards as Huntington Ingalls Industries in 2011 and bought Orbital ATK in 2018.
Stealth bombers
Northrop is the only U.S. company to have built a stealth bomber. The B-2 Spirit entered service in 1997, and the company won the contract for its successor, the B-21 Raider, in 2015. The B-21 first flew in November 2023. Early production lots have been costly: Northrop recorded a $1.56 billion pre-tax loss provision on B-21 low-rate production in 2023 and a further charge of about $477 million in early 2025. In 2026 the Air Force agreed to raise annual production capacity by about 25%.
How a defense prime earns money
Northrop acts as a systems integrator, managing large supplier networks on programs such as the James Webb Space Telescope. Development work is often cost-reimbursable, which limits risk but caps fees, while production work is often fixed-price, which can earn higher margins when executed well and losses when costs rise. Long programs then generate decades of upgrade and sustainment revenue.
Space and strategic missiles
Orbital ATK gave Northrop large solid rocket motor production, which supports the Sentinel ICBM, Navy strategic missiles and the boosters for NASA's Space Launch System. Sentinel is now Northrop's most scrutinized program: a 2024 Nunn-McCurdy breach put its cost at about $141 billion and triggered a restructure targeted to finish by the end of 2026.
2025-2026 position
Northrop ended 2025 with $41.95 billion of sales, $4.18 billion of net earnings and a record $95.7 billion backlog. By mid-2026 backlog reached about $105 billion and sales guidance rose to $43.75-$44.25 billion. On September 29, 2026, it lost the Navy F/A-XX fighter competition to Boeing, its second straight loss in sixth-generation fighters.