STASY

Urban Rail Transport S.A. (Greek: Σταθερές Συγκοινωνίες, romanized: Statheres Synkoinonies, ΣΤΑΣΥ - pronounced as στάση "bus/train stop" Greek pronunciation: [ˈstasi]), commonly abbreviated as STASY, is a Greek public transport operator of the Athens Metro and the Athens Tram. It is the metro and tram subsidiary of Transport for Athens (OASA S.A.), and is responsible for the operation and maintenance of the metro and tram network, including rolling stock, 59 tram stops, and 62 of the 66 metro stations.

STASY was created in 2011, as a merger of the Athens–Piraeus Electric Railways (ISAP), the Attiko Metro Operation Company (AMEL), and Tram S.A., and its logo is an amalgamation of the oval-shaped format of ISAP's logo, and the blue and green colours from AMEL's logo.