ATCSim GmbH is a medium sized and international operating simulation software company.

ATCSim develops in cooperation with its parent company UFA, Inc. (UFA) Air Traffic Control (ATC) Tower and Radar simulation technologies, Voice technologies including Voice Recognition and Response and Voice Communication Simulation, and services to civil aviation, airports, military, and universities worldwide. The products are in use for research, testing, and training.

For further information please visit the UFA Website.