Car-Rent.com compares the prices of well-known car rental companies in Germany, including the following location: Berlin Schoenefeld Airport
Berlin Schoenefeld Airport is officially called Flughafen Berlin-Schönefeld in German and is currently the second airport situated in the German capital city. This will in 2018, (according to the most recent plans) change because the airport will be expanded. Schoenefeld will be re-named to Berlin Brandenburg International Airport and will be the only international airport of Berlin
The Berlin Schoenefeld Airport is designated by the aviation industry with the IATA code SXF and the ICAO code is EDDB. With regards to the Wikipedia article over Berlin Schoenefeld Airport, the airport has one take-off and landing runway with a second runway under construction.
At the time of writing this, there are 6 car rental companies who have offices situated at Berlin Schoenefeld Airport: Avis, Budget, Europcar, Hertz, National and Sixt.
The airport's official website can be found via the following address link: Berlin Schoenefeld Airport