DFS Aviation Services GmbH (DAS) is a subsidiary of DFS Deutsche Flugsicherung GmbH and employs more than 350 people around the world. As a certified ATM provider, DAS controls air traffic at German small and medium-sized airports and sells products and services related to Air Traffic Control around the world. Its customers include ATM organisations, airports, airlines and aviation authorities all over the world.

The subsidiary DFS Aviation Services Bahrain Co WLL provides support in the Middle East in the areas of air traffic control and air traffic control technology. In Asia, DFS Aviation Services has a branch office in Singapore. In South America, DAS has a branch office in Lima.