| # | Entity | Status | State |
|---|---|---|---|
| 1 | 32 645 576 049 SOUTHERN CROSS STRUCTURAL STEEL PTY LTD |
ABN Active | NSW 2164 |
| 2 | 83 151 047 291 EARTH STRUCTURES SOUTHERN PTY. LTD. |
ABN Cancelled | VIC 3720 |
| 3 | 12 948 990 906 C.M SAYLES & R.F SAYLES Great Southern Steel Structures |
ABN Cancelled | WA 6311 |
| 4 | 44 275 606 891 PHILIP MARTIN PATTERSON SOUTHERN STRUCTURES |
ABN Cancelled | TAS 7008 |
| 5 | 56 391 682 343 LEANDRO ARRUDA SOUTHERN CROSS STRUCTURAL |
ABN Active | QLD 4221 |
| 6 | 44 275 606 891 PHILIP MARTIN PATTERSON SOUTHERN STRUCTURES |
ABN Cancelled | TAS 7008 |
| 7 | 86 119 477 808 C.M SAYLES & R.F SAYLES Great Southern Steel Structures |
ABN Cancelled | WA 6311 |
| 8 | 30 314 031 419 JOHN ERNEST CORNOCK Southern Earth Structural |
ABN Active | NSW 2539 |