< PrevNext > 93. BAE Systems Arlington, Va. Share 2019 U.S.-Booked Air Volume: $45 million Consolidated U.S. TMC: BCDBAE Systems had $45 million in U.S.-booked air spend in 2019, according to a BTN estimate. That's a drop from 2018, in which BAE spent $47 million. In 2019, the UK-based company's revenue £18.3billion.The defense and aerospace company has taken on greenhouse gas emission reduction as a priority and has reduced its air travel, according to its annual report. Between October 2018 and October 2019, the company reduced its number of kilometers traveled by 2.3 percent. BAE Systems reduced greenhouse emissions by 8.77 percent.In 2020, BAE Systems intends to acquire Collins Aerospace's military Global Positioning System, which is owned by United Technologies, for $1.9 billion and Raytheon's Airborne Tactical Radios division for $275 million. If the shuffle happens, it could affect travel spend for all three companies in the coming years.