< PrevNext > 3. PwC New York Share 2018 U.S.-Booked Air Volume: $324 millionPrimary Hotel Suppliers: Marriott, Hilton, HyattPrimary Car Rental Suppliers: Hertz, AvisPrimary U.S. Online Booking Tool: ConcurPrimary U.S. Payment Supplier: American ExpressCard Program: individual bill/central payPrimary U.S. Expense Supplier: ConcurConsolidated U.S. TMC: Amex GBTGlobal accounting giant pwc earned $41.3 billion in 2018, as its U.S.-booked air volume rose a modest 2 percent from 2017’s $317 million. Of the 2018 U.S.-booked air spend, 80 percent was for domestic travel. Of the tickets booked in the U.S., 90 percent went through approved online tools; the company, which operates in 158 nations, sets policy by country.