The German Sleeper and Dining Car Company (Deutsche Schlafwagen- und Speisewagengesellschaft, later the Deutsche Service-Gesellschaft der Bahn or DSG) was a subsidiary of Deutsche Bundesbahn with its headquarters in Frankfurt am Main, that emerged from the Mitropa infrastructure left in West Germany in 1949. It existed until 1994 when it was combined with the East German Mitropa to form Mitropa AG.