| # | Entity | Status | State |
|---|---|---|---|
| 1 | 32 088 491 632 A.O.C. SCIENTIFIC ENGINEERING PTY LTD |
ABN Cancelled | NSW 2519 |
| 2 | 51 098 706 686 A.J.O ENGINEERING PTY LTD |
ABN Cancelled | VIC 3051 |
| 3 | 53 638 145 187 A & O ENGINEERING GROUP PTY LTD |
ABN Active | QLD 4812 |
| 4 | 72 638 145 267 A & O ENGINEERING ASSET HOLDINGS PTY LTD |
ABN Active | QLD 4812 |
| 5 | 95 094 711 430 A.O.S. ENGINEERING PTY LTD |
ABN Active | VIC 3803 |
| 6 | 32 088 491 632 A.O.C. SCIENTIFIC ENGINEERING PTY LTD A O C SCIENTIFIC ENGINEERING PTY LTD |
ABN Cancelled | NSW 2519 |
| 7 | 41 830 583 119 WILLIAMS DISCRETIONARY TRUST A & O Engineering Pty Ltd |
ABN Active | QLD 4812 |