Auckland Transport receives funding to subsidise these services from the NZ Transport Agency, which receives funding from road user taxes and Crown appropriations, and from the Auckland Council through rates.

[3] The previous operator of the train network in Auckland was Tranz Metro.

Transdev in a consortium with John Holland and CAF was shortlisted to bid for the next contract in 2021, but lost out to Auckland One Rail.

[4][5][6] Transdev operated services on the following lines from Britomart (effective 12 March 2017):[7] Transdev operated the following rolling stock: The AM class wear the Auckland Transport livery, and the ADL class wear the MAXX livery.

Transdev operated the following rolling stock until full electrification in July 2015: All diesel rolling stock and locomotive-hauled carriage stock is in MAXX Blue livery, except four locomotives which were in KiwiRail livery.