| # | Entity | Status | State |
|---|---|---|---|
| 1 | 12 127 583 751 GH Design & Engineering Pty Ltd |
ABN Cancelled | VIC 3183 |
| 2 | 25 129 481 634 GH Engineering Consultants Pty Ltd |
ABN Cancelled | QLD 4061 |
| 3 | 33 612 962 133 GHS ENGINEERING PTY LTD |
ABN Active | WA 6530 |
| 4 | 49 114 569 247 GH ENGINEERING PTY LTD |
ABN Cancelled | VIC 3463 |
| 5 | 88 112 144 180 GH ENGINEERS PTY LTD |
ABN Active | QLD 4557 |
| 6 | 12 232 951 294 GRAEME ROBERT HEALD gH consultancy engineering |
ABN Cancelled | VIC 3174 |
| 7 | 21 261 955 782 GEOFFREY RICHARD HOLLAND GH ENGINEERS |
ABN Cancelled | VIC 3660 |
| 8 | 91 602 641 292 PF & GH MULHALL PF AND GH MULHALL MECHANICAL ENGINEERING |
ABN Cancelled | QLD 4114 |