article: List of companies operating trains in the United Kingdom
links: Great Eastern Railway Southeastern (train operating company) First ScotRail London & South Western Railway Caledonian Sleeper South Eastern Trains CrossCountry West Midlands Trains Heathrow Airport Holdings London Overground Connex South Eastern Regional Railways First Great Western Virgin Group London Midland Avanti West Coast Southern (Govia Thameslink Railway) Great Western Railway (train operating company) Train operating company Great North Eastern Railway ScotRail Greater Anglia Northern Rail TransPennine Express South Western Railway (train operating company) East Coast (train operating company) Gatwick Express Heathrow Connect First TransPennine Express West Coast Railways Network SouthEast Freightliner Group Southern (train operating company) Stagecoach Group Grand Central (train operating company) Elizabeth line Heathrow Express National Express East Anglia East Midlands Trains Great Northern Railway (Great Britain) Great Central Railway Arriva Trains Wales Midland Railway Eurostar National Express East Coast InterCity (British Rail) Go-Ahead Group South West Trains Connex South Central East Japan Railway Company MTR Corporation Wrexham & Shropshire Thameslink Southeastern (train operating company 2006–2021) South Eastern franchise NI Railways Transport for London FirstGroup Merseyrail First Capital Connect TfL Rail Northern Ireland Caledonian Railway Stansted Express Govia Thameslink Railway Thames Trains BBC News