Lockheed Martin, Raytheon, Boeing Defense, General Dynamics, Northrop Grumman — five companies that collectively receive over $150 billion in U.S. government contracts annually. Here’s how the defense industry works.
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The U.S. defense industry is a $400+ billion annual business that employs approximately 2.8 million workers, spans all 50 states, and occupies a unique position in American political economy: it is simultaneously a commercial industry, a national security institution, and one of the most politically protected economic sectors in the country.
Understanding the defense industry requires separating its several distinct functions: it develops and produces military systems (weapons, vehicles, ships, aircraft, electronics); it provides services (maintenance, training, logistics, IT systems); and it conducts research and development that generates both military capabilities and significant civilian technology spillovers.
The defense industrial base is organized around a small number of prime contractors — large companies that hold prime contracts with the Department of Defense and manage complex supply chains of subcontractors. The five largest are:
Lockheed Martin (~$67B in annual revenue, ~$60B from U.S. government): The world's largest defense contractor, primarily through the F-35 fighter program ($1.7 trillion lifetime cost), C-130 aircraft, missile defense systems, and satellite technology. Lockheed's revenue is approximately 98% government-sourced.
Raytheon Technologies (RTX) (~$68B revenue): Missiles and missile defense (Patriot, Tomahawk, Stinger), aircraft engines (Pratt & Whitney), and defense electronics. Raytheon became one of the primary beneficiaries of the Ukraine conflict as demand for its missile systems surged.
Boeing Defense (~$23B in defense revenue): Military aircraft (KC-46 tanker, AH-64 Apache helicopter), satellites, and missile defense. Boeing's defense segment has faced significant program cost overruns that have strained its relationship with the Pentagon.
Northrop Grumman (~$39B revenue): B-21 Raider stealth bomber, Ground Based Strategic Deterrent (next-generation ICBM), space systems, and cyber capabilities. Highly classified programs constitute a significant share of Northrop's portfolio.
General Dynamics (~$39B revenue): Land combat vehicles (M1 Abrams tank, Stryker), nuclear submarines (Virginia-class, Columbia-class), and information technology services through GDIT.
The political sustainability of the defense industry is maintained in part through deliberate geographic distribution of program work. The F-35 program has suppliers in 45 states — a distribution that is not accidental. When Congress considers whether to reduce or cancel a program, it is simultaneously deciding whether to eliminate jobs in 45 states. The political coalition for continuation is built into the supply chain geography.
This strategy is most visible in congressionally mandated military equipment the Pentagon didn't want: Congress has repeatedly appropriated funds for equipment programs the military had requested cancellation — including additional C-17 aircraft, Abrams tank upgrades, and A-10 aircraft maintenance — because the industrial and employment constituencies for those programs were politically powerful. See military industrial complex economic footprint, finances of the US military, and how lobbying actually works.