Heroux Devtek Inc is a Canada-based company engaged in the design, development, manufacture, repair and overhaul of landing gear and actuation systems and components for the aerospace market. It manufactures electronic enclosures, heat exchangers and cabinets for airborne radar, electro-optic systems and aircraft controls through its Magtron operations, as well as fluid filters products through its Bolton operations. In the commercial sector, it operates in commercial and business jet, regional aircraft and helicopter markets. On the defense side, it provides parts and services for military aircraft in the United States and Europe. Its facilities are involved in the design and fabrication of landing gear systems and components with the exception of the Toronto facility, which manufactures electronic enclosures, heat exchangers and cabinets for airborne radar, electro-optic systems and aircraft controls, and the Bolton facility, which manufactures fluid filters for aircraft engines.