| # | Entity | Status | State |
|---|---|---|---|
| 1 | 15 659 802 392 MB CONSTRUCTION & ENGINEERING PTY. LTD. |
ABN Active | QLD 4105 |
| 2 | 45 132 921 772 MB Engineering Services Pty Ltd |
ABN Cancelled | QLD 4700 |
| 3 | 53 648 422 851 MB ENGINEERED PTY LTD |
ABN Active | VIC 3280 |
| 4 | 76 648 922 794 MBS CIVIL ENGINEERING PTY LTD |
ABN Active | NSW 2207 |
| 5 | 82 131 293 822 MB ENGINEERING SOLUTIONS PTY LTD |
ABN Active | NSW 2304 |
| 6 | 84 665 307 424 MB ENGINEERING PTY LTD |
ABN Active | NSW 2570 |
| 7 | 40 103 098 791 INVOLVE IT PTY LTD MBS Engineering Services Pty Ltd |
ABN Active | VIC 3180 |
| 8 | 45 132 921 772 MB Engineering Services Pty Ltd |
ABN Cancelled | QLD 4700 |