< PrevNext > 66. AbbVie North Chicago, Ill. Share 2020 U.S.-Booked Air Volume: $11.3 millionBiopharmaceutical company AbbVie in May 2020 completed its acquisition of fellow drug maker Allergan, which buoyed the company’s U.S.-booked air volume for the year. Despite that boost, the company totaled just $11.3 million in U.S.-booked flights for the year, according to a BTN estimate. AbbVie was among the first American firms to limit business travel during the early phases of the Covid-19 pandemic, restricting travel to China and other early virus hot spots in February 2020. The Allergan acquisition drove strong 2020 revenue growth for AbbVie, which reported income of $45.8 billion for the year, a 37.7 percent jump from 2019. The company as of late January 2021 employed about 47,000 people, up from 30,000 before the acquisition.