| # | Entity | Status | State |
|---|---|---|---|
| 1 | 23 714 427 369 STEPHEN ALPHONSE PAUL Optimal Civil Structural Solutions |
ABN Active | QLD 4074 |
| 2 | 52 003 841 807 NASHRAM PTY. LIMITED STRUCTURAL OPTIMIZATION |
ABN Cancelled | NSW 2095 |
| 3 | 90 242 256 357 DAVID GRANT NASH STRUCTURAL OPTIMIZATION |
ABN Cancelled | NSW 2095 |
| 4 | 97 724 416 050 STEVEN HANTZOLOS Optimal Structures Consulting |
ABN Active | VIC 3127 |