Transport Topics has issued its 2015 lists of the 100 largest for-hire trucking fleets in North America of which UPS, FedEx, J.B. Hunt, Con-way and YRC Worldwide, in that order, are the top five again this year. The number 1 company on the for-hire list, UPS operates 106,000 company-owned tractors, vans, straight trucks, package cars and motorcycles.