Founded in 1917 and tracing its industrial heritage to 1892, Construcciones y Auxiliar de Ferrocarriles (CAF) is a global manufacturer of comprehensive railway transport solutions. Headquartered in Beasain (Basque Country, Spain), the publicly traded corporation operates manufacturing and technical centers across Spain, the United Kingdom, France, the United States, Brazil, Mexico, and Australia.

CAF provides an end-to-end rolling stock portfolio spanning all market segments. In urban rail, CAF’s Urbos tram platform operates across major cities worldwide (such as Sydney, Budapest, Edinburgh, and Amsterdam), offering catenary-free operation via onboard ultracapacitors and lithium-ion energy storage systems (Greentech). Its Inneo metro trains serve transit authorities in Madrid, Barcelona, London (Docklands Light Railway), Mexico City, and Santiago de Chile. In regional and mainline rail, the modular Civity platform powers regional commuter networks across the UK, the Netherlands, Italy, and Australia, while the Oaris platform delivers high-speed capabilities operating at speeds up to 350 km/h.

Through its dedicated rail engineering subsidiaries—including CAF Signalling, CAF Turnkey & Engineering, and digital intelligence arm LeadMind—CAF delivers full turnkey rail transit systems. Its signaling division develops and installs proprietary European Train Control System (ETCS Level 1/2) solutions, centralized traffic control (CTC), and Communication-Based Train Control (CBTC) systems. Through its subsidiary Solaris Bus & Coach, CAF also extends its sustainable passenger transport ecosystem to zero-emission hydrogen and electric city buses.