FedEx Corporation provides transportation, e-commerce, and business services in the United States and internationally. It operates in four segments: FedEx Express, FedEx Ground, FedEx Freight, and FedEx Services. The FedEx Express segment offers various shipping services for the delivery of packages and freight. This segment also provides international trade services specializing in customs brokerage, and ocean and air freight forwarding services; customs clearance services, as well as global trade data, an information tool that allows customers to track and manage imports; and international trade advisory services, including assistance with the customs-trade partnership against terrorism program, as well as publishes customs duty and tax information in various customs areas. In addition, it offers supply chain solutions, including critical inventory logistics, transportation management, and temperature-controlled transportation services. The FedEx Ground segment provides business and residential ground package delivery services; and engages in the consolidation and delivery of high volumes of low-weight and less time-sensitive business-to-consumer packages. It primarily serves customers in the small-package market in North America. The FedEx Freight segment offers less-than-truckload freight services, as well as freight-shipping services. As of May 31, 2012, this segment operated approximately 58,000 vehicles and trailers from a network of 366 service centers. The FedEx Services segment provides sales, marketing, information technology, communications, customer service support, and other back-office support services; and access to copying and digital printing through retail and Web-based platforms, signs and graphics, professional finishing, computer rentals, and a range of ground shipping and time-definite express shipping services. The company was founded in 1971 and is headquartered in Memphis, Tennessee.