| # | Entity | Status | State |
|---|---|---|---|
| 1 | 15 625 504 529 LANDMARK CIVIL ENGINEERING PTY LTD |
ABN Cancelled | NSW 2010 |
| 2 | 31 136 473 197 Landmark Consulting Engineers Pty Ltd |
ABN Cancelled | VIC 3204 |
| 3 | 53 147 987 095 Landmark Engineering & Design Pty Ltd |
ABN Active | WA 6155 |
| 4 | 85 131 686 318 LANDMARK ENGINEERING PTY. LTD. |
ABN Cancelled | NSW 2045 |
| 5 | 53 147 987 095 Landmark Engineering & Design Pty Ltd LANDMARK ENGINEERING & DESIGN |
ABN Active | WA 6155 |
| 6 | 53 147 987 095 Landmark Engineering & Design Pty Ltd Landmark Engineering & Design |
ABN Active | WA 6155 |