Hellenic Railways Organisation
TrainOSE S.A. (, pronounced "trenosé") is a private railway company in Greece which currently operates passenger and freight trains on OSE lines. TrainOSE was acquired in September 2017 by the Italian national railway company, Ferrovie dello Stato Italiane. The company was a subsidiary of the Hellenic Railways Organisation (OSE) until 2008, when it became an independent state-owned company until its privatisation in 2017. TrainOSE employs all train crews, operators and manages the rail services throughout the Greek railway network, but does not own any rolling stock, leasing rolling stock owned by OSE instead.