| # | Entity | Status | State |
|---|---|---|---|
| 1 | 28 070 652 578 EFFICIENT CONSTRUCTION SERVICES PTY. LIMITED |
ABN Cancelled | NSW 2261 |
| 2 | 40 141 800 900 ENERGY EFFICIENT CONSTRUCTIONS PTY LTD |
ABN Cancelled | QLD 4037 |
| 3 | 67 080 924 358 ENERGY EFFICIENT HOMES DESIGN AND CONSTRUCTION PTY. LIMITED |
ABN Active | NSW 2570 |
| 4 | 49 283 799 513 ALEXANDER PETER FARKAS ALEX'S EFFICIENT CONSTRUCTIONS |
ABN Cancelled | NT 0810 |
| 5 | 68 023 341 646 REINALDO PALMA EFFICIENT CONSTRUCTIONS |
ABN Cancelled | NSW 2216 |
| 6 | 97 611 939 881 DENORI PTY LIMITED Efficient Building and Construction |
ABN Active | NSW 2360 |