DFS Deutsche Flugsicherung GmbH is Germany’s air navigation services company, headquartered in Langen, Hesse. It combines civil and military air traffic control, operating radar control centres in Bremen, Karlsruhe, Langen and Munich and tower services at designated international airports. Its controllers manage aircraft separation, departures, arrivals and en-route traffic, supported by communications, navigation and surveillance infrastructure. DFS also supplies aeronautical information for pilots and works on airspace planning, research and future traffic management. Its group connects conventional air navigation with remote towers, flight calibration and drone integration through specialist subsidiaries and partnerships. The official website provides operational information, publications and IFR/VFR resources.