After World War II, DDSG was under Soviet control until 1955, when the Austrian State Treaty was signed. This treaty finalized that the real estate assets of DDSG in Hungary, Romania and Bulgaria would remain in Soviet ownership. This was important for the Soviet Union because until then, DDSG assets in occupied countries had been transferred to joint ventures and, in some cases, even transferred to communist states. This is how the Óbuda Shipyard also came under Hungarian state ownership in 1953.
After the reorganization of the Hungarian shipyard plant in 1962, the shipyard continued to operate as the Óbuda Plant Directorate of the Hungarian Ship and Crane Works. DRUZSBA-type hotel ships which can be considered the forerunners of today’s hotel ships, were built here, as well as pusher boats designed for Soviet inland waters. The shipyard took the name Ganz Danubius Shipyard and Crane Factory Óbuda Shipyard in 1985, but it found itself in a difficult situation during the change of regime. The last two ships, the icebreakers BREZNO and KRUPINA, built for the Czechoslovak order, were launched in 1989. The shipyard ceased operations in 1993.