section of the second line, with Ansaldo of Italy and MVM of Australia getting the contract to build the system. The St. Stephen's Green to Dublin Airport section was dropped before construction began, as it was decided to serve the area by a metro instead. The contract to maintain operate the system was awarded to Transdev Ireland (formerly known as Connex).

The extension from Connolly to The Point opened in 2009, with the extension from Belgard