Among the top three operators, Amadeus has the world’s largest share of air global distribution system bookings at 44% as of year-end 2019. The GDS segment represents 56% of total revenue. The company has a growing IT solutions division (44% of sales) that addresses the airline, airport, rail, hotel, and business intelligence markets. Transaction fees, which are tied to volume and not price, account for the bulk of revenue and profits.Amadeus IT Group SA provides transaction processor for the travel and tourism industry. It provides technology solutions to its travel provider and travel agency customers.