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GE Aerospace builds and services jet engines for commercial and military aircraft, and also makes aircraft parts and systems.
GE Aerospace makes the engines that hang under airplane wings. If you've flown on a Boeing 737 or many Airbus jets, there's a good chance a GE engine or a GE partnership engine was pushing you along. The company builds engines for big commercial airliners, for military fighters and transports, and it also makes avionics, engine parts, and the software that keeps aircraft flying safely. It sells to airlines, aircraft makers, and governments around the world.
The engine business works like a razor-and-blades model, but with a very expensive razor. GE Aerospace sells an engine to an airline or aircraft manufacturer, often at a thin margin or even a loss on the initial sale. Then it makes money for decades afterward by servicing that engine: replacing worn parts, overhauling it on a schedule, and selling spare parts. Engines are incredibly complex machines with thousands of parts spinning in extreme heat, so they need constant care. Airlines stick with the original maker for that care because nobody else knows the engine as well, and switching is impractical. That long tail of service revenue is the real engine of the business, and it's why the company's backlog of orders and service contracts is enormous. This is not a scrappy startup story. GE Aerospace is the surviving core of General Electric, the sprawling conglomerate that once made light bulbs, refrigerators, power plants, and TV shows. Over the past decade GE shrank and split itself apart, spinning off its health care business and its energy business until what remained was the jet engine operation. That turned out to be the crown jewel: engines are a genuinely hard business with only a few serious players. The main rivals are Rolls-Royce and the engine joint venture CFM, which GE runs with France's Safran, plus Pratt & Whitney in the smaller-engine market.
The business has real vulnerabilities. It is tightly tied to how much the world flies, so a pandemic or a recession that grounds planes hurts it. Engine makers also face long, expensive development cycles — a new engine can take a decade and billions of dollars to bring to market. And because GE's engines are so widely used, the company carries heavy obligations to keep them flying safely, which means big spending on warranties and fixes when problems appear. The upside is that air travel keeps growing over the long run, and every plane sold today becomes a service customer for the next twenty or thirty years.
Saved answer · last researched 1 Nov 2026