External links
Media related to OSE Hellenic Railways Organization at Wikimedia Commons
- (in English) Official website
| Company type | Private Anónimi Etaireía |
|---|---|
| Industry | Railway transport, logistics and train maintenance |
| Predecessor |
|
| Founded | 1 January 2001 |
| Defunct | 30 September 2025 [1] |
| Successor | Greek Railways |
| Headquarters | 301 Liossion street, 10445 Athens , |
Area served | Greece (Mainland only) |
Key people |
|
| Products | Rail transport, transport, services, property management |
| Owner | Greek Government (100%) |
| Website | https://www.gaiaose.com/ |
GAIAOSE SA was a public service company, 100% owned by the Greek government, [5] active in the fields of railway property management [6] and development [7] (lands and buildings) and rolling stock management. [8]
In 2001, the infrastructure element of OSE was spun off to form the second largest landowner (after the Church. [9] At the time of its creation the entire portfolio of OSE’s property was valued at 2 billion euros. [10] Since 2015 GAIAOSE SA has been as the administrator for the railway rolling stock, at the behest of the Greek State. [11] In 2023, 123 older, disused and condemned rolling stock units were set for auction in the first pilot scrapping project, as part of the fleet management program of the Ministry of Infrastructure and Transport [12]
In August 2025, the Greek Ministry of Infrastructure and Transport confirmed the creation of a new body, Greek Railways (Greek : Σιδηρόδρομοι Ελλάδος, romanized: Ellinikí Sidiródromi Monoprósopi) [13] to assume responsibility for rail infrastructure, planning, modernisation projects, and rolling stock across Greece. Rail safety has been identified as a key priority. [14] The merger follows the July approval of a Parliamentary Bill to restructure the national railway system, a direct response to the Tempi accident of February 2023, in which 43 people died after a head-on collision. [15]
GAIAOSE also maintained and leased rollingstock. The fleet being managed consisted of 3752 vehicles (locomotive units, passenger and transport units). The largest part of this rolling stock, was leased and used by Hellenic Train (formally TrainOSE.
As of 2025, Chairman of the Board of Directors, Konstantinos Kesentes [16] CEO, Nikolaou Perikles [17] Member (Chairman of the Audit Committee), Panagiotis Valantasis Member, Konstantinos Stavridis Member, Antonis Rovolis Member, Stefanos Xekalakis Member, Athanasios Chondrogiannis
Media related to OSE Hellenic Railways Organization at Wikimedia Commons