Bücker Flugzeugbau GmbH was an aircraft manufacturer based in Rangsdorf, Brandenburg, Germany, founded in 1932 by Carl Bücker. The company gained recognition for producing highly esteemed sports planes, which later went on to be used as trainers by the Luftwaffe during World War II. Bücker also built designs under license from other manufacturers, including the Focke-Wulf Fw 44, DFS 230, and components for the Focke-Wulf Fw 190, Junkers Ju 87, and Henschel Hs 293. However, during the war, forced labor was used at the Bücker works. Soviet Union prisoners (up to 500) and laborers from France, Italy, and other countries were held under appalling conditions in a nearby camp. Post-WWII, the company’s premises fell into the Soviet occupation zone and were seized. The company was broken up, and the Soviet army used the premises for aviation maintenance until their withdrawal from Germany in the 1990s. The Bü 181 continued to be built in Czechoslovakia and Egypt after the war.