Amadeus IT Group

Since 2004, the company has invested €1 billion in R&D.

In 2005, Amadeus was delisted from the Paris, Frankfurt and Madrid stock exchanges when BC Partners and Cinven bought their stake from three of the four founding airlines and the rest of the capital floated from institutional and minority shareholders. The transition from distribution system to technology provider was reflected by the change in its corporate name to Amadeus IT Group in 2006. In 2009, Amadeus invested about €257 million in R&D.

In September 2014, Air France sold a 3% stake in the firm for $438 million. In November 2017, Amadeus invested in global mapping tech provider AVUXI.

In 2000, Amadeus was awarded the development of two new operational applications for British Airways and Qantas: the inventory management and the departure control systems. These products were outside of the core expertise domain of Amadeus and were built with the expertise of the airlines.

Controversies

On 15 January 2019, hacker and activist Noam Rotem discovered a major vulnerability in Amadeus's airline booking system, affecting nearly half of all airlines worldwide. While booking a flight with Israeli national carrier El Al, he came across a significant security breach that allows anyone to access and change private information on flight bookings. The same breach was then discovered to include 44% of the international carriers market, potentially affecting tens of millions of travelers.

In June 2025, Spain's data protection watchdog fined the company €18 million for a traveler profiling project. According to the agency, "Amadeus had failed to comply with its obligations to provide data subjects with information about its processing under Article 14 GDPR". The company paid €14.4 million as part of the fine but still appealed the decision. According to one source, this penalty resulted in accelerated investments in zero trust security architecture in the travel industry.