Amadeus

Amadeus is the leading global distribution system (GDS) and technology provider, serving the marketing, sales and distribution needs of the world's travel and tourism industries in over 210* markets around the world. Through the Amadeus GDS, travel agencies and airline offices can make bookings 95 per cent of the world's scheduled airline seats.

http://www.amadeus.com/
http://www.amadeus.net/

International companies