< PrevNext > 5. Apple Cupertino, Calif. Share 2017 U.S.-Booked Air Volume: $275 millionConsolidated U.S. TMC: BCDBTN estimates that tech giant Apple's 2017 U.S.-booked air volume increased about 8 percent from 2016. Apple's net sales for its 2017 fiscal year, which ended Sept. 30, 2017, totaled about $229.2 billion, up more than 6 percent year over year. The company had approximately 123,000 full-time equivalent employees at the end of that fiscal year, up from about 116,000 one year prior. Apple's business air travel and rental car use generated about 121,000 metric tons of carbon dioxide equivalent in fiscal year 2017, up from about 117,500 the year before. Apple continues to partner with CWT Meetings & Events for some meetings management services.