United Parcel Service, Inc. Class B (UPS)

As the world's largest parcel delivery company, UPS manages a massive fleet of more than 500 planes and 100,000 vehicles, along with many hundreds of sorting facilities, to deliver an average of about 22 million packages per day to residences and businesses across the globe. UPS' domestic US package operations generate around 65% of total revenue, while international package makes up 20%. Air and ocean freight forwarding and contract logistics make up the remainder.