Amadeus IT Group is a major Spanish multinational technology company that provides software solutions for the global travel and tourism industry. It is the world's leading provider of travel technology that focus on developing software for airlines, hotels, travel agencies, and other travel-related businesses to enhance their operations and customer experiences.

The company is structured around two areas: its global distribution system and its Information Technology business. Amadeus provides search, pricing, booking, ticketing and other processing services in real-time to travel providers and travel agencies through its Amadeus CRS distribution business area. It also offers computer software that automates processes such as reservations, inventory management software and departure control systems. It services customers including airlines, hotels, tour operators, insurers, car rental and railway companies, ferry and cruise lines, travel agencies and individual travellers directly.

Amadeus processed 945 million billable travel transactions in 2011.

The parent company of Amadeus IT Group, holding over 99.7% of the firm, is Amadeus IT Holding S.A. It was listed on the Spanish stock exchanges on 29 April 2010.

Amadeus has central sites in Madrid, Spain (corporate headquarters and marketing), Sophia Antipolis, France (product development), London, UK (product development), Breda, Netherlands (development), Erding, Germany (Data center) and Bangalore, India (product development) as well as regional offices in Boston, Bangkok, Buenos Aires, Dubai, Miami, Istanbul, Singapore, and Sydney.At market level, Amadeus maintains customer operations through 173 local Amadeus Commercial Organisations (ACOs) covering 195 countries. The Amadeus group employs 14,200 employees worldwide,and listed in Forbes' list of "The World's Largest Public Companies" as No. 985.