< PrevNext > 11. Google Mountain View, Calif. Share 2018 U.S.-Booked Air Volume: $239 millionPrimary U.S. Payment Supplier: CitiGoogle’s U.S.-booked air spend jumped 34 percent in 2018 from 2017’s $178 million. That’s the fifth straight year of double-digit-percentage increases and nearly three times 2017’s 12 percent rise. Google expects U.S.-booked air spend to grow 16 percent to $277 million this year. Revenue, meanwhile, jumped 23 percent in 2018 to $136.8 billion, the same rate of increase as the previous year.The company made no change in 2018 to its travel policy, which covers the globe, and it plans none this year. It did roll out SAP Concur’s triplink last year to reveal corporate negotiated rates to travelers shopping on United and American’s direct sites and to bring data for business trips back into Google’s travel program.Of the company’s 2018 U.S.-booked air volume, 65 percent was for international travel. CWT was Google’s primary travel management company, handling 45 percent of the tech giant’s agency business in the U.S., as well as globally.