Top Largest Military Contractors by Revenue
The largest military contractors are defined by annual defense and arms sales, with Lockheed Martin consistently ranked first for fighter jets, missiles, and advanced combat systems. RTX Corporation, formed from the merger of Raytheon and United Technologies, ranks among the leaders in missiles, defense electronics, and aircraft engines. Boeing follows as a major supplier of military aircraft, helicopters, and defense systems, while Northrop Grumman focuses on bombers, stealth technology, and autonomous systems. BAE Systems, headquartered in the United Kingdom, remains one of the largest global suppliers of combat vehicles, naval ships, and advanced electronics, and General Dynamics builds submarines, armored vehicles, and IT systems for defense agencies worldwide. These companies dominate the top of the global defense market and supply equipment to dozens of national militaries.
Defense revenue is tracked by the Stockholm International Peace Research Institute, the U.S. Securities and Exchange Commission filings, and annual Forbes and Defense News rankings that compare arms sales across public and state-linked firms. The latest public data shows the top five contractors accounting for a large share of global arms exports and government contracts, with U.S.-based firms controlling the majority of the top positions. Many of these companies also operate major space, cybersecurity, and intelligence units that serve both military and civilian government customers, blurring the line between traditional defense and technology contractors.
Revenue Scale and Global Defense Market Share
The top military contractors generate tens of billions of dollars annually from government contracts, with Lockheed Martin, RTX, Boeing, Northrop Grumman, and BAE Systems repeatedly appearing in the top tier of arms sales rankings. These firms depend on long-term weapons programs, multi-year procurement deals, and sustainment services that provide stable revenue streams even during periods of reduced conflict or budget uncertainty. Their market share is measured by the share of total global arms exports and by the value of contracts awarded by the U.S. Department of Defense, NATO allies, and other major defense buyers.
Government transparency portals and financial filings show how much of each company's total revenue comes from defense versus civil divisions, with some firms deriving the majority of their income from military programs. The U.S. Securities and Exchange Commission EDGAR system hosts annual reports and 10-K filings for publicly traded contractors, where segment data breaks out defense sales, R&D spending, and backlog figures. Forbes and Defense News regularly publish updated lists that compare these numbers and highlight shifts in market share caused by new programs, mergers, or changes in defense budgets.
Key Programs, Contracts, and Strategic Focus
Lockheed Martin leads with the F-35 Lightning II fighter program and builds the Trident II submarine-launched ballistic missiles for the U.S. Navy and allied navies. RTX Corporation supplies the Standard Missile family, Tomahawk cruise missiles, and advanced radar systems, while Boeing produces the AH-64 Apache attack helicopter and the CH-47 Chinook heavy-lift helicopter for military customers worldwide. Northrop Grumman builds the B-2 Spirit and B-21 Raider stealth bombers and provides satellite and space systems, and General Dynamics produces the Virginia-class nuclear attack submarines and the Stryker armored vehicle family.
BAE Systems builds the M1 Abrams tank, the CV90 infantry fighting vehicle, and naval combat systems for the U.S. and allied navies, while also supplying electronic warfare systems and training services. Many of these contractors have expanded into unmanned systems, hypersonic weapons, cyber defense, and artificial intelligence, areas that are increasingly central to modern military planning. The U.S. Department of Defense and allied procurement agencies publish contract awards and obligation data online, allowing analysts to track which companies win the largest new programs and how defense spending shifts over time.