| Train operating companies in the United Kingdom | ||
|---|---|---|
| Arriva Trains Wales RR | c2c LSE | Chiltern Railways LSE |
| Direct Rail Services RF | Enterprise IN | East Midlands Trains RR |
| Eurostar IN | EWS RF | Fastline RF |
| First Capital Connect LSE | First Great Western IC LSE RR | First ScotRail RR |
| First TransPennine Express IC RR | Freightliner RF | Gatwick Express LSE |
| FirstGBRf RF | Grand Central Trains* IC | GNER IC |
| Heathrow Connect LSE | Heathrow Express* LSE | Hull Trains* IC |
| Island Line LSE | London Midland LSE RR | Mendip Rail RF |
| Merseyrail RR | NIRailways RR | Northern Rail RR |
| one IC LSE | Southeastern LSE | South West Trains LSE |
| Southern LSE | Virgin Trains IC | |
| IC - InterCity | LSE - London & South East | RF - Railfreight |
| RR - Regional Railways | IN - International | * Open-access operator |
[[Category:Post-privatisation British railway companies]]