< PrevNext > 87. Emerson St. Louis, Mo Share 2020 U.S.-Booked Air Volume: $7 millionBTN estimates U.S.-booked air volume for the automation, commercial and residential technology provider Emerson cratered to $7 million in 2020 from $51 million in 2019. In October 2019, Reuters reported that Emerson was operating seven private jets. The company immediately encountered backlash about maintaining that fleet along with a corporate helicopter and by February 2020 trimmed the fleet by half, according to the St. Louis Business Journal. Revenue at Emerson declined to $16.8 billion in 2020 from $18.4 billion in 2019. Headcount at the company fell in turn from 88,000 to 83,500 across 200 locations. The company in 2020 closed acquisitions for Progea and Open Systems in multibillion-dollar transactions.