  | |
| Company type | Joint venture |
|---|---|
| Industry | Train operating company |
| Founded | 2002 |
Area served | Northern England |
| Owner | Serco (50%) Transport UK Group (50%) |
| Subsidiaries | Merseyrail |
Serco-Abellio (formerly Serco-NedRailways) is a joint venture between Serco and Transport UK Group, each owning 50%. The joint venture is the train operating company of the Merseyrail franchise since July 2003 in the Liverpool City Region. It previously operated the Northern Rail franchise in Northern England from December 2004 until March 2016.
Serco-Abellio also lodged unsuccessful bids for the Wales & Borders, West Midlands (which Abellio later successfully bid for itself) and Tyne & Wear Metro franchises.
Transport UK Group was established in February 2023, following a management buyout of Abellio.