FedEx was founded in 1971 and has grown to be a global leader in delivery services, with $11.5 billion in revenue as of 2014. It operates through four business segments: FedEx Express, FedEx Ground, FedEx Freight, and FedEx Services. FedEx has established a strong brand through consistent branding elements like its distinctive purple color and "We Understand" tagline. It has grown through strategic acquisitions and by extending its brand across different operating companies through shared branding elements. FedEx continues to invest in technology and innovation to differentiate itself and maintain its competitive edge in the delivery industry.