| # | Entity | Status | State |
|---|---|---|---|
| 1 | 19 647 897 041 RIVER CITY STRUCTURES (QLD) PTY LTD |
ABN Active | QLD 4158 |
| 2 | 30 651 307 514 MARGARET RIVER STRUCTURAL ENGINEERS (WA) PTY LTD |
ABN Active | WA 6285 |
| 3 | 48 635 286 243 RIVER CITY STRUCTURES PTY LTD |
ABN Cancelled | QLD 4740 |
| 4 | 49 144 616 197 Margaret River Structural Engineering Pty Ltd |
ABN Active | WA 6285 |
| 5 | 49 144 616 197 Margaret River Structural Engineering Pty Ltd Margaret River Structural Engineering |
ABN Active | WA 6285 |
| 6 | 60 045 237 859 ROGER MARTIN PATEMAN MARGARET RIVER STRUCTURAL ENGINEERING |
ABN Active | WA 6285 |
| 7 | 49 144 616 197 Margaret River Structural Engineering Pty Ltd MARGARET RIVER STRUCTURAL ENGINEERING |
ABN Active | WA 6285 |