KiwiRail is among short-listed contenders to run Auckland's metro trains once Transdev's $60 million-plus management contract expires next year.
The Government-owned rail company, which ran the city's trains before Transdev's predecessor Connex took over in 2004, is one of three organisations short-listed by Auckland Transport.
As well as continuing to run all rail freight, it also operates 2200 metro passenger services a week in Wellington.
French-owned Transdev has also been shortlisted, as has British service giant Serco, which runs Mt Eden prison and will be in charge of the 960-bed Auckland South Corrections Facility when it opens in a fortnight.
Auckland Transport says a new contract from July 1 next year will be performance-based and reflect "the huge changes in the Auckland passenger rail system" since 2004.