This is a list of Transport for London (TfL) contracted bus routes in London, England, as well as commercial services that enter the Greater London area (except coaches). Bus services in London are operated by Abellio London, Arriva London, HCT Group, Go-Ahead London (Blue Triangle, Docklands Buses, London Central, and London General), Metroline, RATP Group (London Sovereign, London United, and Quality Line) Stagecoach London (East London, Selkent, and Thameside), Sullivan Buses, Tower Transit, and Uno. TfL-sponsored operators run more than 500 services.