Construcciones Y Auxiliar De Ferrocarriles. 

Construcciones y Auxiliar de Ferrocarriles, S.A. develops and sells rail and bus transport solutions in Spain, rest of Europe, the United States, the Asia-Pacific, and internationally. The company offers trains, buses, components, signaling systems, and turnkey mobility solutions. It also provides rolling stock equipment and components; simulators; aeronautical and digital mobility solutions; and repairs and maintenance, engineering, and lease and marketing services. The company was formerly known as Compañía Auxiliar de Ferrocarriles S.A. and changed its name to Construcciones y Auxiliar de Ferrocarriles, S.A. in 1971. The company was incorporated in 1917 and is headquartered in Beasain, Spain.