Based in Madrid , the Amadeus IT Group reported a net revenue of $ 4.95bn in 2017 , representing a growth in sales of over $ 0.6bn yearover-year . The company provides transaction processing solutions to the global travel and tourism industry , including full service carriers , lowcost airlines , hotels , rail operators , cruise and ferry operators , car rental companies and tour operators , travel agencies , both online and offline , according to Forbes . In addition to financial services , Amadeus IT

also provides technology support solutions to its customer base .

Wisconsin-based software company Fiserv Inc . provides electronic financial services , including the processing of electronic payments , account management , and cash management and consulting services to banks , thrifts , and credit unions . The company reported a net revenue of $ 5.5bn in 2017 . This represents a 10-year high point in sales for the company ; its asset portfolio and

annual profits also increased , to nine-year high points . The company ’ s management continues to execute strategy with 32 years of consecutive double-digit EPS growth , according to Seeking Alpha . 58 April 2018