2021 U.S.-Booked Air Volume: $10 million 
2021 Global T&E: $59 million
Primary U.S. Air Suppliers: American, Delta, United, 
Primary U.S. Hotel Suppliers: Hilton, Hyatt, Marriott
Primary U.S. Car Rental Suppliers: Avis Budget
Primary U.S. Online Booking Tool: SAP Concur
Primary Global Payment Provider: American Express
Card Program: Individual Bill/Individual Pay
Primary Global Expense Supplier: Workday
Primary U.S. Travel Risk Management Supplier: Crisis24
Consolidated Global TMC: Amex GBT

Global professional services firm Aon’s 2021 revenue increased 10 percent year over year to $12.2 billion, and its U.S.-booked air volume declined to $10 million last year from $16 million in 2020. The firm anticipates a rebound in U.S.-booked air volume in 2022.

The firm in 2021 reinforced the program’s global standards across all countries and continued to drive a global standard delivery model. 

Aon committed to achieving net-zero emissions by 2030 in alignment with science-based targets. As part of Aon’s Smart Working strategy, colleagues made more conscious and purposeful decisions regarding travel, while continuing to maintain high levels of client service and collaboration among colleagues. Additionally, the firm’s investments in virtual and remote working technology let colleagues to connect from anywhere around the world, enabling seamless connectivity.

Aon also continued to strategically shift more hotel properties to dynamic rates and worked with its travel management company to maximize unused airline tickets. Aon modified language to streamline its travel policy in 2021, and has new safety-related policies, procedures and communication campaigns globally to support colleague travel. It has a pre-trip approval process, which was in place prior to the pandemic.
As of Dec. 31, 2021, Aon had approximately 50,000 employees in more than 120 countries, about the same as at the end of 2020.