< PrevNext > 87. Boston Scientific Marlborough, Mass. Share 2017 U.S.-Booked Air Volume: $50.6 millionThe medical device manufacturer saw its U.S.-booked air volume drop $6.3 million in 2017, driven by a revision to its business class policy and a continued focus on reducing overall expenses. It acquired two companies last year and employed 29,000 as of the end of the year. The company invested nearly $1 billion in R&D in 2017 and grew sales revenue 7 percent. It also expanded into global markets; sales from emerging markets rose 15 percent year over year. Sales in China grew 20 percent.