< PrevNext > 43. Abbott Abbott Park, Ill. Share 2016 U.S.-Booked Air Volume: $94 millionPrincipal Online Booking Tool: ConcurPrincipal Card Supplier: American ExpressPrincipal Expense Supplier: ConcurConsolidated U.S. TMC: Amex GBTGlobal pharmaceutical and healthcare giant Abbott cut its U.S.-booked air volume to $94 million in 2016, according to a BTN estimate, after spending $102 million the year prior. Though net sales increased to $20.9 billion in 2016, compared with $20.4 billion in 2015, the company also pared back its selling and G&A expenses last year, including travel. Abbott uses Concur for booking and expenses in the U.S. and for some operations in Europe and the Asia/Pacific region. The company reports 94,000 employees in more than 150 countries.