National Air Traffic Services Ltd  
   A World Leader in Air Traffic Management, NATS provides safety by ensuring aircraft flying in UK airspace, and over the eastern North Atlantic, are safely separated.
   http://www.nats.co.uk/

IFATCA (International Federation of Air Traffic Controllers)  
   The non-political and non-industrial world professional organization representing approximately 40,000 air traffic controllers in more than 100 countries.
   http://www.ifatca.org/

Austro Control  
   AUSTRO CONTROL ensures throughout Austria the flow of information necessary for the safety, regularity and efficiency of national and international air navigation.
   http://www.austrocontrol.co.at/

Greek Air Traffic Controllers Association  
   Represents controllers on a variety of professional issues and, at the same time, as a union aiming to upgrade and improve working conditions and industrial relations for its members.
   http://www.forthnet.gr/eeeke

Air Services Australia  
   A provider of integral air traffic services; the design, creation and maintenance of airways systems; and the provision of aviation rescue and firefighting services.
   http://www.airservices.gov.au/

EuroControl  
   European Organization for the safety of air navigation.
   http://www.eurocontrol.be/

NAV Canada  
   NAV CANADA provides a complete range of services including: air traffic control, flight and aeronautical information, weather briefings, airport advisory services and electronic aids to navigation.
   http://www.navcanada.ca/

Ente Nazionale di Assistenza al Volo  
   International character for the managed air traffic services in Italy.
   http://www.enav.it

DFS Deutsche Flugsicherung GmbH  
   DFS is resposible for air traffic control and radio navigation facilities in Germany.
   http://www.dfs.de/

Air Navigation Services of the Czech Republic  
   Air Navigation Services of the Czech Republic ensures flow of information necessary for safety, regularity and efficiency of international and national air traf
   http://www.ans.cz/

Association Professionnelle de la Circulation Aérienne  
   The Air traffic trade association of France.
   http://www.apca-france.com/

Midwest Air Traffic Control Service, Inc  
   A full service air traffic control organization. Dedicated to providing air traffic control, weather reporting and related technical support services.
   http://www.atctower.com/

The Canadian Air Traffic Control Association  
   To promote the status, working conditions, compensation and security of the membership and to promote aviation safety.
   http://www.catca.ca

The National Association of Air Traffic Specialists  
   NAATS is the sole representative of the Air Traffic Control Specialists who are employed in the Flight Service Stations and their associated data processing centers in the US.
   http://www.naats.org/

Associazione Nazionale Assistenti Controllori della Navigazione Aerea  
   ANACNA promotes, in collaboration with the Italian civil and military authorities, the efficiency and the emergency of the air navigation.
   http://www.anacna.it/

Airways New Zealand  
   Organisation that controls New Zealand's air space. Services include air traffic control, infrastructural support, international consulting and airline publications.
   http://www.airways.co.nz/

Professional Women Controllers  
   An association of both men and women professional air traffic controllers.
   http://www.pwcinc.org/

EuroControl Guild of Air Traffic Services  
   Promotes the safety, efficiency and regularity of international air navigationand to protect and safeguard the individual and general interests of its members.
   http://www.egats.org/

Bulgarian Air Traffic Controllers' Association  
   Bulgarian Air Traffic Controllers' Association.
   http://www.bulatca.org/index.htm

Finnish Air Traffic Controllers Association  
   Finnish Air Traffic Controllers Association represents 95% of the Air Traffic Controllers in Finland (total 261 members.
   http://www.sljy.org/

Cyberhome of Indian Air Traffic Controllers  
   Official web site of the Air Traffic Controllers' Guild (India)- the association of Indian Controllers. An attempt to present the aviation scene in India as perceived by the Indian ATCs.
   http://www.atcguild.com

The National Air Traffic Controllers Association  
   NATCA members are U.S. controllers in public and private sectors and Federal Aviation Administration engineers.
   http://www.natca.org/

FAA - Federal Aviation Administration  
   US Government aviation authority.
   http://www.faa.gov/

Air Traffic Control Sri Lanka  
   Air Traffic Control Sri Lanka, provides all the information in aviation matters. In addition, it caters for anybody who is intersted in the field and related technical developments.
   http://atcsl.tripod.com

Air Safety Analysis Corporation  
   Airspace Safety Analysis Corporation provides industry-leading FAA/FCC regulatory compliance services and cutting edge aviation procedure design.
   http://www.asacinc.com

skyguide, Swiss air navigation services ltd  
   Provider of swiss air navigation services. All you want to know about the air traffic control in switzerland. European specialist for complex airspaces management.
   http://www.skyguide.ch

Air Traffic and Navigation Services Company Limited  
   ATNS is responsible for the efficient running of South Africa's Air Traffic Control Systems, the maintenance of which includes the deployment of ATNS Air Traffic Controllers and Avionician technical staff.
   http://www.atns.co.za/

Midwest Air Traffic Controllers for Patco Representation  
   Midwest Air Traffic Services controllers request union representation from Patco. Midwest controllers control air traffic at federal, fct, and cost share air traffic control towers.
   http://www.towerdjs.com/patco.htm

Site de l'Union Syndicale de L'Aviation Civile - CGT  
   Website of the french Civil Aviation trade union "USAC-CGT": News (French and european) and archives. Aviation civile: actualité syndicale et archives de l'USAC-CGT.
   http://www.usac-cgt.org