ZUE S.A., together with its subsidiaries, provides construction services in Poland. The company is involved in the design, construction, modernization, and maintenance of catenary networks and substations, tram tracks, and lighting fixtures; and construction of communication networks and fibre optic wiring, earth works and track beds, drainage systems, stations, depots, control rooms, and street traffic lights. It also engages in the design, construction, modernization, and repair of railway catenary and track systems; low voltage installation and engineering work activities; and production of infrared systems, tram switch controllers, switch heating products, and tram switch drives. The company was incorporated in 2002 and is based in Kraków, Poland.