| # | Entity | Status | State |
|---|---|---|---|
| 1 | 16 616 439 840 BLACK RETAINER HOLDINGS PTY LTD |
ABN Cancelled | NSW 2229 |
| 2 | 72 127 603 801 RETAINING WALL SYSTEMS (HOLDINGS) PTY LTD |
ABN Active | NSW 2019 |
| 3 | 75 661 174 385 RETAIN WALL HOLDINGS PTY LTD |
ABN Active | WA 6065 |
| 4 | 98 676 382 255 HOLDING RETAINING WALLS UP PTY LTD |
ABN Active | VIC 3206 |
| 5 | 75 661 174 385 RETAIN WALL HOLDINGS PTY LTD RETAINING WALL HOLDINGS |
ABN Active | WA 6065 |