Today known as Deutsche Bahn AG (abbreviated as DB, DB AG or DBAG) is a German railway company. Headquartered in Berlin, it is a private joint-stock company (AG), with the Federal Republic of Germany being its single shareholder. Deutsche Bahn describes itself as the second-largest transport company in the world, after the German postal and logistics company Deutsche Post / DHL, and is the largest railway operator and infrastructure owner in Europe. Deutsche Bahn was the largest railway company in the world by revenue in 2015. It carries about two billion passengers each year.
Deutsche Bahn (German for “German Railway”) came into existence in 1994 as the successor to the former state railways of Germany, the Deutsche Bundesbahn (“German Federal Railway”) of West Germany and the Deutsche Reichsbahn (“German Reich Railway”) of East Germany. It also gained ownership of former railway assets in West Berlin held by the Verwaltung des ehemaligen Reichsbahnvermögens (Administration of the Former Reichsbahn Assets).