< PrevNext > 66. Bayer Leverkusen, Germany Share 2017 U.S.-Booked Air Volume: $62.5 millionPrincipal Air Suppliers: United, Delta & AmericanPrincipal Hotel Suppliers: Marriott, Hilton & InterContinentalPrincipal Car Rental Supplier: HertzPrincipal U.S. Online Booking Tool: ConcurPrincipal Non-U.S. Online Booking Tool: OnestoPrincipal Global Expense Supplier: ConcurPrincipal Payment Suppliers: Citi & American ExpressPrimary U.S. TMC: BCDConsolidated Non-U.S. TMC: CWTIn 2017, Bayer conducted a global airline RFP, switched from National to Hertz for car rental and implemented an internal expense reimbursement platform, CombiPay, that allows for centralized payment of Citi credit cards; Bayer now has an individual bill/central pay card program. In 2018, it will require travelers seeking reimbursement to submit receipts only for purchases of $50 or more. The previous threshold was $25.Bayer's annual revenue was $35 billion in 2017. The company's spending on U.S.-booked air volume fell by $2.9 million in 2017, but it expects the number to bounce back to $64 million this year. Of its 2017 U.S.-booked airline tickets, 75 percent were purchased on an approved online channel, and 45 percent of that volume was booked without an agent. Sixty-five percent of Bayer's U.S.-booked air spend was for international travel. Bayer has a single travel policy for the U.S., and BCD Travel handled 45 percent of Bayer's 2017 U.S.-booked air volume.