| # | Entity | Status | State |
|---|---|---|---|
| 1 | 15 608 961 548 SCHAFER & CO. PTY LTD O'Brien Plumbing North Sydney |
ABN Active | NSW 2519 |
| 2 | 71 676 500 388 BROOKSIES GROUP PTY LTD O'Brien Electrical & Solar North Lakes |
ABN Active | QLD 4014 |
| 3 | 91 165 651 276 ATTWOOD ELECTRICAL PTY LTD O'BRIEN ELECTRICAL NORTH WOLLONGONG |
ABN Active | NSW 2519 |
| 4 | 15 608 961 548 SCHAFER & CO. PTY LTD O'BRIEN PLUMBING NORTH WOLLONGONG |
ABN Active | NSW 2519 |
| 5 | 54 118 678 416 Collins Electrics Pty Ltd O'Brien Electrical- North Geelong |
ABN Active | VIC 3215 |
| 6 | 98 007 566 458 BERRY & LECORNU PTY. LIMITED O'BRIEN ELECTRICAL ADELAIDE NORTH |
ABN Active | SA 5072 |
| 7 | 93 624 160 247 LP&E CONSTRUCTION PTY LTD O'Brien Plumbing & Relining Coffs Harbour North |
ABN Active | NSW 2450 |