The travel technology company – which employs more than 16,000 staff across 190 countries – becomes Travalyst’s 8th partner alongside Booking.com, Expedia Group, Google, Skyscanner, Tripadvisor, Trip.com Group, and Visa.
Travalyst is developing a framework of shared principles and preferred methodology for reporting sustainability – focusing initially on aviation and accommodation – which has begun to be implemented by some of its travel distribution partners.
Sally Davey, chief executive of Travalyst, said: "Amadeus is an important partner for us strategically and an ideal company to join the coalition at this stage in our journey.
"The partnership with Amadeus brings us significant reach within the travel industry and agent community, allowing us to embed our strategy and frameworks more deeply.
"This is going to be a significant step forward, making it easier for the industry and its consumers to bring sustainable travel into the mainstream."