RATP Dev Transit London Limited, trading as RATP Dev Transit London, is a bus company operating mostly in west and south-west Greater London. The London United brand is a subsidiary of RATP Dev Transit London and operates services under contract to Transport for London.

Kingston upon Thames in South West London, England is served by two bus stations as well as a large number of on-street bus stops. Due to the Kingston one-way system, the various stops and bus stations are physically separate, however passengers are able to interchange between routes by walking through Kingston town centre, or walking from Kingston railway station.