First Rail London

First Rail London
Overview
Concessions	London Overground; 3 May 2026
Main region	London
Parent company	FirstGroup
Reporting mark	LO
Other
Website	www.firstraillondon.co.uk

First Rail London is a British train operating company owned by FirstGroup that operates the London Overground concession.

History

Transport for London shortlisted Arriva, FirstGroup, Go-Ahead Group and Transport UK Group for the next London Overground contract.

In December 2025, FirstGroup was awarded the contract with First Rail London, and took over the concession from Arriva Rail London on 3 May 2026. The contract runs for eight years, with the option to extend it by two additional years.

Rolling stock

First Rail London inherited a fleet of Class 378 and Class 710 rolling stock.

Current fleet

Family	Class	Image	Type	Top speed		Number	Train Numbers	Cars	Seat layout	Routes operated	Built
Family	Class	Image	Type	mph	km/h	Number	Train Numbers	Cars	Seat layout	Routes operated	Built
Bombardier Electrostar	378/1 Capitalstar		EMU	75	120	20	378135–154	5	Longitudinal	East London line South London line	2009–10
	378/1 Capitalstar
	378/2 Capitalstar		EMU	75	120	37	378201–378234 378255–378257	5	Longitudinal	North London line West London line East London line South London line Watford DC line	2008–11
	378/2 Capitalstar
Bombardier Aventra	710/1		EMU	75	120	30	710101-130	4	Longitudinal	Lea Valley lines Romford–Upminster line	2017–20
	710/1
	710/2		EMU	75	120	18	710256-273	4	Longitudinal	Gospel Oak to Barking line Watford DC line	2017–20
	710/2
	710/3		EMU	75	120	6	710374-379	5	Longitudinal	Watford DC line	2020
	710/3