Stadler Rail AG, through its subsidiaries, engages in the manufacture and sale of trains in Switzerland, Germany, Austria, Western and Eastern Europe, the Americas, the CIS countries, and internationally. The company operates through three segments: Rolling Stock; Service & Components; and Signalling. The Rolling Stock segment manufactures various rail vehicles comprising high-speed, intercity, regional trains, city transport, locomotives, and tailor made, as well as passenger coaches, light rails, and trams. The Service & Component segment provides revision, spare parts, vehicle repair, modernization and overhauling, and maintenance services; and supplies vehicle components, such as car bodies or bogies. The Signalling segment develops and distributes various signalling solutions for vehicles and infrastructures. This segment offers various solutions in the areas of train protection, communication-based train control for driverless operation, automatic train operation, driving assistance systems, interlocking technologies, and other trackside components for automatic train protection system, as well as services for the planning and implementation of security systems. The company was founded in 1942 and is headquartered in Bussnang, Switzerland.