Οργανισμός Σιδηροδρόμων Ελλάδος
The Hellenic Railways Organisation (OSE) is a service provision company managing the National Railway Infrastructure, and carrying out its expansion through its subsidiary, ERGOSE SA. It is the Greek national railway company which owns, maintains and operates all railway infrastructure in Greece. In addition, OSE owns and maintains the rolling stock used by TrainOSE and maintains preserved special rolling stock, withdrawn locomotives and railcars.
OSE SA was founded in 1970 and is wholly owned by the Greek State; it is a public utility based in Athens and operates with full administrative, legal and financial independence under the supervision of the State.