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Héroux-Devtek makes landing gear and other critical parts for airplanes, selling mostly to aircraft makers and defence customers.
Héroux-Devtek builds the parts of an airplane that touch the ground and the pieces that move its wings and engines. Its biggest job is landing gear — the whole system of struts, wheels, and brakes that lets a plane take off, land, and park safely. It also makes actuators, which are the powered mechanisms that push and pull parts of an aircraft into position, plus other precision components.
The company sells to two very different kinds of customers. On the commercial side, it supplies parts for large airliners and business jets, often as a contractor to the big plane builders like Boeing and Airbus, and it earns steady money from spare parts and repairs as those planes keep flying for decades. On the defence side, it makes landing gear and parts for military aircraft, where orders come from governments and defence primes and tend to be more stable and less tied to the ups and downs of air travel. What makes this business hard to copy is certification. A landing gear system must be proven safe for a specific aircraft, so once a company wins the contract to supply a plane model, it tends to keep that work for the life of the program. That gives Héroux-Devtek a durable stream of revenue, but it also means the company is only as busy as the plane builders are — when aircraft production slows, its orders slow too.
Based near Montreal, the company has grown over the years by acquiring other aerospace suppliers and expanding into new plants, including in the United States and Europe. In early 2025, it agreed to be acquired by U.S. private equity firm Platinum Equity in a deal worth roughly C$1.35 billion, which would take it private and end its run as a public company. That buyout is the key recent event for anyone tracking the stock, since it changes who owns the business and how investors can hold it.
Saved answer · last researched 15 Nov 2026