This list is a structured list of current operators, for an alphabetically ordered index of current and former operators, see List of bus operators of the United Kingdom This is a list of current bus and coach operators of the United Kingdom, including public transport, private hire and tour operators. Large groups Most bus services in the United Kingdom are run by the Big Five, five large groups of companies which emerged in the 1990s from the consolidation of bus companies privatised in the 1980s. These groups are all focused on transport. Some of them also run rail services, express coach services and overseas transport companies. They are: Arriva See List of Arriva bus companies FirstGroup See List of First UK bus companies Go-Ahead Group See List of Go-Ahead bus companies National Express See List of National Express UK bus companies Stagecoach Group See List of Stagecoach UK bus companies Foreign-owned groups A number of large foreign companies have entered the UK bus market. Their UK bus operations are not yet large, but they are growing. Abellio part of Nederlandse Spoorwegen. ComfortDelGro See ComfortDelGro UK bus companies RATPDev See List of RATPDev companies Transdev See List of Transdev UK bus companies Other bus groups Rotala Diamond East Midlands Diamond North West Diamond South East Diamond West Midlands Hotel Hoppa Preston Bus Centrebus Centrebus Chaserider D&G Bus High Peak Buses (formed in April 2012 between Trentbarton (Dove Holes Depot) and Centrebus) Wellglade Group Kinchbus Notts + Derby TM Travel Trentbarton Municipal operators For a list of the remaining local-government owned bus companies see Municipal bus companies. London In London, a variety of companies run buses under contract to London Buses. They are: companies owned by three of the 'Big Five': Arriva London Go-Ahead London (London Central, London General, Blue Triangle, Docklands Buses) Stagecoach London (East London, Selkent, Thameside) companies owned by other groups: Abellio (Abellio London) ComfortDelGro (Metroline) RATP (London Sovereign, London United) Transit Systems (Tower Transit) independent operators: Sullivan Buses Uno Northern Ireland In Northern Ireland most bus services are operated by government-owned Translink through their subsidiaries: Metro (formerly Citybus) Ulsterbus Some cross-border services are operated by Bus Éireann. Independent companies England Bakers Dolphin Berrys Coaches The Big Lemon Bullocks Coaches Chalkwell Coaches Connect2Wiltshire Connexionsbuses Cumfybus Dales & District Delaine Buses Ensignbus First Choice Bus Go-Coach Hodge's Coaches Hulleys of Baslow Johnsons Coach & Bus Travel Leisuretime Lucketts Travel Lynx