Great Northern Rail Services was a railway operator in Victoria, Australia. Great Northern Rail Services was incorporated in July 1993 and provided locomotives and train crews to other rail operators, ran general train operations and rail vehicle maintenance services in Victoria. The company was the first fully accredited and operational private rail operator in Victoria. The company ceased operations in November 2002 due to the increased public liability insurance costs.

Southern Shorthaul Railroad is an Australian rail freight services operator in New South Wales and Victoria. The company also provides workshop services, such as rolling stock manufacturing and wagon and locomotive maintenance.