Wikipedia
Serco-Abellio
Serco-Abellio (formerly Serco-NedRailways) is a joint venture between Serco and Abellio, each owning 50%. The joint venture formed and owns one train operating company in northern England. It has operated the Merseyrail franchise since July 2003 and operated the Northern Rail franchise from December 2004 until March 2016.
Serco-Abellio also lodged unsuccessful bids for the Wales & Borders, West Midlands and Tyne & Wear Metro franchises.
Serco is a UK public listed company providing outsourced public sector services internationally, including the operation of public transport systems. Abellio is a subsidiary of the Dutch state railway company, Nederlandse Spoorwegen.