Operadora Ferroviaria Sociedad del Estado Argentina. The list includes urban railways such as Mitre, San Martín, Roca and Belgrano Sur lines previously managed by private companies. The "Binational" service Posadas-Encarnación is run by Casimiro Zbikoski S.A. through an operation agreement with SOFSE. Commuter rail services within the Buenos Aires Province: Inter-city services along Argentina: Operadora Ferroviaria Sociedad del Estado Operadora Ferroviaria Sociedad del Estado (abbreviated SOFSE; trading name: Trenes Argentinos Operaciones) is an Argentine State-owned company created in 2008 to operate passenger services in Argentina. It is a subsidiary of the Ferrocarriles Argentinos holding company. Since March 2015 SOFSE has run the Buenos Aires commuter
Fiat Ferroviaria Fiat Ferroviaria Fiat Ferroviaria was the rail division of FIAT of Italy. It was founded in 1880 as Società Nazionale Officine di Savigliano. Fiat Ferroviaria began building locomotives in the 1930s. It became part of FIAT in 1970. Fiat Ferroviaria acquired the rail business of SIG of Switzerland in 1995 forming the subsidiary Fiat-Sig. The company had previously owned Argentine company Materfer until 1998, which now operates as an independent company. It was taken over in 2000 by the French Alstom, which continues to produce and support many of Fiat Ferroviaria's products. During the 60s-70s Fiat Ferroviaria developed tilting technology