Federal Express (FedEx)

FedEd is the biggest cargo airliner in the world, with 643 operations centers for its air fleet in more than 220 countries and territories. Its 46 telephone centers around the world process more than 500,000 calls per day. FedEd employs more than 148,000 people, among them 43,500 messengers that deliver more than 3.1 million packages every workday of the year.