< PrevNext > 94. Emerson St. Louis Share 2018 U.S.-Booked Air Volume: $49 millionEmerson's U.S.-booked air volume was $49 million in 2018, BTN estimates. Last year, the automation, commercial and residential technology provider closed its acquisitions of Aventics, a Germany-based manufacturer, and Tools & Test, a Rockford, Ill.-headquartered manufacturer. According to its 2018 annual report, Emerson's sales in the U.S./Canada, Europe, Asia, Latin America and Middle East/Africa regions have grown by double digit percentages. Around 76,500 people work at the company.