 | Aecom |
| ARRB Transport Research Pty Ltd |
| Arup |
| CGI Consulting Pty Ltd |
| Connell Wagner |
| E3 Consult |
| GHD Pty Ltd |
| HLA Envirosciences Pty Ltd |
| Hyder Consulting |
| Infratech Management Consultants |
| KBR |
| MWH Global |
| Parsons Brinckerhoff Pty Ltd |
| Pearsons Transport Resource Centre Pty Ltd |
| SMEC (Australia) Pty Ltd |
| URS Australia Pty Ltd |
| Veitch Lister Consulting Pty Ltd |
| WBM Pty Ltd |
| WorleyParsons |
