< PrevNext > 2. IBM Armonk, N.Y. Share 2017 U.S.-Booked Air Volume: $430 millionPrincipal Air Suppliers: American & DeltaPrincipal Hotel Suppliers: Hilton & MarriottPrincipal Car Rental Suppliers: Avis & HertzPrincipal Online Booking Tool: ConcurPrincipal Payment Supplier: American ExpressPrincipal Expense Supplier: Concur Consolidated Global TMC: Amex GBTBTN estimates that IBM's U.S.-booked air volume decreased by $35 million in 2017, reflecting reduced travel volumes. In doing so, the technology and consulting heavyweight, with nearly $2 billion in global T&E last year, continued to slip from its position as the largest corporate buyer of U.S.-booked air travel. It gave up that spot last year for the first time in the 30-year history of the CT 100. IBM signed a global deal in 2016 to combine T&E under Concur. IBM's use of the Orbitz for Business tool came to a complete stop on Dec. 1, 2016, and by year-end, IBM had rolled out Concur in 33 countries. The company launched Concur T&E in the U.S. in May 2017. By January 2018, it had rolled out Concur Travel to all 99 countries where IBM manages travel and Concur Expense to 103 countries. IBM also introduced an internal social network, Travel@IBM.Last year, IBM created IBM Travel Manager, a cognitive data and analytics platform that integrates data from various sources for end-to-end visibility and that conducts real-time, what-if analytics and trending alerts to identify patterns. IBM Travel Manager rolled out to business managers internally in 2017 and is available to IBM customers, as well.In 2016, the company conducted internal surveys and interviews, talked with corporate peers and worked with Concur and the IBM global client group to create a survey to benchmark and establish policy parameters. The company is focusing on the traveler experience through a mobile app that provides basic itinerary information and innovative features like curated feeds and a personal concierge, customized to IBM's environment. The travel team will pilot a minimum viable product version of a mobile app in the third quarter of 2018 and will make it available to IBM customers shortly thereafter.