< PrevNext > 65. Marsh & McLennan Cos. New York Share 2019 U.S.-Booked Air Volume: $61 million2019 Global Air Volume: $120 million2019 Global T&E: $260 millionPrimary U.S. Air Suppliers: Delta, UnitedPrimary U.S. Hotel Suppliers: Marriott, HiltonPrimary U.S. Car Rental Suppliers: Hertz, NationalPrimary U.S. Online Booking Tool: GetTherePrimary Non-U.S. Online Booking Tool: KDSPrimary U.S. Payment Supplier: American ExpressCard Program: Individual Bill/Individual PayPrimary U.S. Travel Risk Management Supplier: WorldAwareConsolidated U.S. TMC: BCDBTN estimates Marsh & McLennan Cos. increased its annual U.S.-booked airline ticket spending by about $4 million from the $56.8 million it spent in 2018, while revenue grew 10 percent to $16.6 billion. BTN estimates the organization spent $120 million in global air volume and $260 million in global T&E. The company was in its third year of working with multiyear hotel agreements last year and continued travel compliance and traveler engagement initiatives launched previously.