Operators

For former operators see

Passenger operators

Avanti West Coast	c2c	Caledonian Sleeper
Chiltern Railways	CrossCountry	East Midlands Railway
Gatwick Express	Grand Central Railway	Great Northern
Great Western Railway	Greater Anglia	Heathrow Express
Hull Trains	Island Line	London North Eastern Railway
London Northwestern Railway	Lumo	Merseyrail
Northern	ScotRail	South Western Railway
Southeastern	Southern	Stansted Express
Thameslink	TransPennine Express	Transport for Wales
West Midlands Railway

Freight Operators

Colas Rail	DCRail	Direct Rail Services
DB Cargo UK	Freightliner	GB Railfreight
Mendip Rail	RailAdventure

Maintenance operators

Network Rail

Railtour operators

Heritage and private operators