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BAE Systems is a defense company that builds fighter jets, warships, submarines, missiles, and military electronics for governments, chiefly the UK and US.
BAE Systems is one of the world's largest defense contractors, and its business is straightforward at heart: it designs, builds, and maintains the hardware and electronics that governments use to fight wars. Its biggest products are fighter jets, warships and submarines, and the missiles, radars, and electronic systems that go inside them. Its main customers are the UK Ministry of Defence and the US Department of Defense — the two governments that account for the vast majority of its sales — with other countries, especially in Europe and the Middle East, making up the rest.
The company runs several parts that mostly do different things. Its electronics division makes defense systems that are snapped up quarterly by the US military: aircraft sensors, electronic warfare gear, and communications equipment. Its US arm sells military vehicles and artillery and has become a serious American defense player in its own right, with the US now its single biggest market. The aircraft business builds and supports fighters, including components for the F-35 Lockheed Martin jet, while the ships business builds warships for the UK and other navies. What makes BAE distinctive is how long its products live. A fighter jet can be bought in the morning and then generate steady service, repair, and upgrade money for decades, and a warship is a 30-year relationship. That recurring support work gives it a defense business with a long, durable order book. Its ships and submarines business, especially the massive Aukus submarine program involving Australia and the UK, keeps it anchored to some of the biggest and most politically sensitive defense projects in the world. The flip side is that governments can cut budgets, and every order depends on politics as much as engineering. BAE has come under fire for its arms sales to Saudi Arabia — a major customer of its aircraft — and has faced criticism from human rights groups over where its weapons end up. It has also been caught in debates about defense spending, especially as European nations woke up after Russia's invasion of Ukraine and started promising to spend more. That backdrop is good for order books, but it also makes BAE a lightning rod for controversy.
Competition comes from the other giants: Lockheed Martin, Northrop Grumman, and RTX in the US, plus European players like Thales and Rheinmetall. BAE's edge is its installed base and its deep ties with the UK and US governments, which keeps it in the room for the biggest programs. The company pays shareholders a dividend and buys back shares from time to time, but the real money goes into projects that can take years to pay off — a warship or a submarine program is a huge bet placed long before the bill arrives.
Saved answer · last researched 5 Nov 2026