MTU Aero Engines AG
MTU Aero Engines AG, together with its subsidiaries, engages in the development, manufacture, sale, and maintenance of commercial and military aircraft engines, and aero-derivative industrial gas turbines in Germany, other European countries, North America, Asia, and internationally. It operates through two segments: Original Equipment Manufacturing Business; and Maintenance, Repair, and Overhaul Business. The company offers commercial aircraft engines for wide body aircraft, narrow body, regional jets, helicopters, business jets, and turboprops; military aircraft engines for fighter jets, helicopters, and transporters; and industrial gas turbines. It also maintains, repairs, and overhauls commercial and military engines; and manufactures and markets various spare parts. The company was formerly known as MTU Aero Engines Holding AG and changed its name to MTU Aero Engines AG in May 2013. MTU Aero Engines AG was founded in 1913 and is headquartered in Munich, Germany.
What does it do?
MTU Aero Engines is a German company that makes and services jet engines — the massive turbines that power planes from Airbus and Boeing. They don't build the whole engine alone; instead, they partner with giants like Pratt & Whitney and GE to manufacture specific engine parts and components. Think of them as a critical specialist supplier: if a major airline needs their CFM56 engine repaired or a new LEAP engine component built, MTU is often involved. They operate globally, with customers ranging from Lufthansa to the German Air Force.
Aviation is in a multi-year recovery and expansion cycle — airlines are ordering planes at record rates, which means demand for new engines and engine maintenance is surging. MTU sits at the intersection of two powerful tailwinds: a commercial aviation boom and rising defense budgets across Europe after geopolitical tensions escalated. With a $21 billion market cap and revenue growing from $7.5B to $8.7B in one year, the market is paying close attention.
How does it make money?
MTU makes money through two main channels. First, their Original Equipment Manufacturing (OEM) business builds and sells new engine parts and components — this is where they capture value when airlines order new aircraft. Second, and arguably more powerful, is their Maintenance, Repair, and Overhaul (MRO) business: every jet engine must be serviced on a fixed schedule by law, creating a recurring, predictable revenue stream. With $8.7B in annual revenue and $1.0B in net profit, the MRO side is the stickier, higher-margin engine of the business — airlines simply cannot fly without it.
Why do investors care?
The investment case rests on a simple but powerful idea: the world's commercial aircraft fleet is growing, and every single plane needs its engines maintained for decades. MTU has long-term service agreements baked in when airlines buy engines, locking in future MRO revenue. The growth story accelerates with next-generation engines like the Pratt & Whitney GTF (geared turbofan), where MTU holds a significant revenue share. What has to go right: air travel demand stays strong, no major engine technical failures hit their key platforms, and defense spending in Europe continues rising.
Deep Dive
MemberA full investor briefing on MTU Aero Engines AG — history, leadership, risks, and outlook.