Three consortiums made up of a combined 17 organisations from Australia and overseas have lodged expressions of interest for the OTS contract. They are: * Northwest Rapid Transit - MTR Corporation (Australia), John Holland, Leighton Contractors, UGL Rail Services, Plenary Group; * TransForm - Serco Australia, Bombardier Transportation Australia, SNCLavalin Capital, McConnell Dowell Constructors (Aust), John Laing Investments, Macquarie Capital Group; and * The Pulse Consortium - Keolis Australia, Downer EDI, Obrascon Huarte Lain, Ansaldo STS Australia, Mitsubishi Corporation, Bank of Tokyo-Mitsubishi UFJ