| # | Entity | Status | State |
|---|---|---|---|
| 1 | 31 647 204 064 SIGMA ENGINEERING SOLUTIONS PTY LTD |
ABN Cancelled | WA 6163 |
| 2 | 90 000 966 094 SIGMA CIVIL ENGINEERING SERVICES PTY LTD |
ABN Cancelled | NSW 2580 |
| 3 | 91 167 048 526 SIGMA POWER ENGINEERING PTY LTD |
ABN Cancelled | WA 6152 |
| 4 | 96 165 295 714 SIGMA ELECTRICAL ENGINEERING PTY LTD |
ABN Cancelled | VIC 3008 |
| 5 | 98 091 486 903 SIGMA ENGINEERING PTY LTD |
ABN Active | QLD 4017 |