| # | Entity | Status | State |
|---|---|---|---|
| 1 | 26 136 970 904 QUANTUM MAINTENANCE SERVICES PTY LIMITED |
ABN Cancelled | NSW 2223 |
| 2 | 63 125 319 619 QUANTUM SERVICES PTY LIMITED |
ABN Cancelled | NSW 2000 |
| 3 | 75 066 749 853 QUANTUM FINANCIAL SERVICES AUSTRALIA PTY. LIMITED |
ABN Active | NSW 2067 |
| 4 | 81 604 938 105 QUANTUM CORROSION SERVICES GROUP PTY LIMITED |
ABN Active | NSW 2750 |
| 5 | 90 142 420 380 QUANTUM GROUP ELECTRICAL SERVICES (NSW) PTY LIMITED |
ABN Cancelled | NSW 2166 |
| 6 | 75 066 749 853 QUANTUM FINANCIAL SERVICES AUSTRALIA PTY. LIMITED |
ABN Active | NSW 2067 |