UPS began as the American Messenger Company in 1907, when 19-year-old Jim Casey founded the company in Seattle, WA. The company later became the United Parcel Service, and today UPS is the world's largest package delivery company with a major global presence in specialized transportation and logistics services. UPS has been a Fortune 100 company since 1994. The company went public in 1999 and trades on the NYSE as UPS. The main Global Air Hub for UPS is in Louisville, KY, and their corporate headquarters is in Atlanta, GA.