| # | Entity | Status | State |
|---|---|---|---|
| 1 | 16 628 237 927 HORIZON ENGINEERING AND CONSTRUCTION PTY LTD |
ABN Active | WA 6014 |
| 2 | 27 100 759 895 HORIZON ENGINEERING INDUSTRIES PTY. LTD. |
ABN Active | QLD 4740 |
| 3 | 44 649 447 978 HORIZON ENGINEERS HOLDING ENTITY PTY LTD |
ABN Active | NSW 2150 |
| 4 | 55 606 213 290 HORIZON AIRLINES ENGINEERING PTY LTD |
ABN Active | NSW 2200 |
| 5 | 64 675 875 000 HORIZON ENGINEERING SOLUTIONS PTY LTD |
ABN Active | NSW 2114 |
| 6 | 71 061 709 108 ENGINEERING HORIZONS PTY LTD |
ABN Cancelled | WA 6065 |
| 7 | 79 606 178 643 HORIZON ENGINEERS PTY. LTD. |
ABN Active | NSW 2162 |