Linkek
- HATCA - Hungarian Air Traffic Controllers' Associations
- CANSO - Civil Air Navigation Services Organisation
- EUROCONTROL - European Organisation for the Safety or Air Navigation
- IATA - International Air Transport Organisation
- ICAO - International Civil Aviation Organisation
- THALES
- Air Navigation Administration (ANA) Luxembourg
- Air Traffic Control the Netherlands (Dutch ANSP)
- Austro Control (Austrian ANSP)
- Belgocontrol (Belgian ANSP)
- Deutsche Flugsicherung DFS (German ANSP)
- Direction générale de l'aviation civile (French ANSP)
- ENAV (Italian ANSP)
- NATS - National Air Traffic Services (British ANSP)
- Swiss Air Navigation Services Ltd.
- Croatia Control Ltd. (Croatian ANSP)
- Air Navigation Services of the Czech Republic
- Romainan Air Traffic Services Administration
- SMATSA (Serbia and Montenegro ANSP)
- Slovak ANSP
- Slovenia Control Ltd.
