Salcef Group SpA engages in the design, construction and maintenance of railway infrastructures and equipment. It operates through the following business units: Armament, Technologies, Primary Lines, Multidisciplinary Railway Works, Railway Materials, Railway Machinery, and Engineering. The Armament unit involves in maintenance orders, renovation, and construction activities of railway, tramways, and underground. The Technologies unit deals with the design of electric traction, substation, and railway signaling systems. The Primary Lines unit focuses in construction of works for distribution, with overhead and underground lines of high, medium, and low voltage energy. The Multidisciplinary Railway Works unit executes orders that include several specialization categories, together with the completion of works infrastructure. The Railway Materials unit engages in the production of monobloc sleepers and segments for underground tunnels and audiences. The Railway Machinery unit specializes in the rental of machines for the construction and maintenance of railway infrastructures. The Engineering unit focuses on railway design engineering services. The company was founded in 1949 and is headquartered in Milan, Italy.