DFS Deutsche Flugsicherung, the German air navigation service provider, is a State-owned company under private law with 5,500 employees. DFS ensures the safe and punctual flow of air traffic over Germany. Around 2,200 air traffic controllers guide up to 10,000 flights in German airspace every day, more than three million movements every year. This makes Germany the country with the highest traffic volume in Europe. The company operates four control centres as well as control towers at 16 international airports in Germany. Its subsidiary DFS Aviation Services offers products and services related to air traffic management worldwide and provides air navigation services at nine German regional airports as well as at London Gatwick Airport and Edinburgh Airport in the UK. DFS has been working on the integration of drones into air traffic since 2016 and has set up a joint venture, Droniq GmbH, with Deutsche Telekom.