| Abigroup Limited |
Melbourne Stadium Limited |
| Aerostructures |
Melbourne University |
| AirServices Australia |
Melbourne Water |
| Ambidji Aviation Services |
Metro Water Limited |
| ANZ Banking Group Limited |
Mid Coast Water |
| Australian Rail Track Corporation |
Monash University |
| Austin Hospital |
Montgomery Watson Harza |
| Australasian Lubricants Manufacturing Company |
Nyrstar |
| Australian Marine Pilots Association |
Parsons Brinckerhoff |
| Australian Marine Safety Authority |
Port of Brisbane |
| Barwon Water |
Port of Melbourne Corporation |
| BHP Billiton |
Port Phillip Sea Pilots |
| BlueScope Steel Limited |
Queensland Rail |
| Bovis Lend Lease |
Rail Corporation New South Wales (RailCorp) |
| Brisbane City Council |
Roan Prospecting & Mining |
| Civil Aviation Authority, New Zealand |
Royal Perth Hospital |
| Civil Aviation Safety Authority, Australia |
Silcar |
| ConnectEast |
Silver Fern Shipping |
| Connex Melbourne |
Snowy Hydro Limited |
| CSIRO |
South Port, New Zealand |
| Dairy Australia |
Southern Rural Water |
| Dampier Port Authority |
Sugar Australia |
| Department of Consumer and Employment Protection |
Sydney Ports |
| Department of Defence |
Tasports |
| Department of Environment and Conservation |
Teekay Shipping (Australia) |
| Department of Human Services |
TEMCO |
| Department of Infrastructure |
Thale |
| Department of Justice |
Thiess John Holland |
| Department of Sustainability and Environment |
Toll Transport |
| Department of Transport and Regional Services |
Transend |
| Department of Treasury and Finance |
Transgrid |
| Energy Australia |
Transpower New Zealand |
| Energy Safe Victoria |
Transurban City Link |
| Engineering Education Australia |
V/Line Passenger |
| Goulburn Murray Water |
VicRoads |
| Leighton Contractors |
VicTrack |
| Main Roads Queensland |
Warringah Council |
| Mainco |
Water Agencies Portfolio Management |
| Marlborough District Council, New Zealand |
Western Power |
| Melbourne City Council |
Western Water |
