| # | Entity | Status | State |
|---|---|---|---|
| 1 | 25 604 069 981 ORION CONSULTING ENGINEERS PTY. LTD. |
ABN Active | NSW 2153 |
| 2 | 27 672 264 210 ORION ENGINEERING AND CONSTRUCTION PTY LTD |
ABN Active | WA 6164 |
| 3 | 63 122 174 378 Orion Engineering Services (Aust) Pty Ltd |
ABN Active | WA 6004 |
| 4 | 70 074 548 057 H.D. ORION - ENGINEERING PTY LTD |
ABN Cancelled | VIC 3976 |
| 5 | 80 002 538 696 ORION FIRE ENGINEERING PTY LTD |
ABN Active | NSW 2170 |
| 6 | 81 681 062 779 ORION ENGINEERING PTY LTD |
ABN Active | WA 6070 |
| 7 | 90 144 771 022 Orion Engineering Australia Pty Ltd |
ABN Cancelled | WA 6065 |
| 8 | 70 074 548 057 H.D. ORION - ENGINEERING PTY LTD H D ORION ENGINEERING PTY LTD |
ABN Cancelled | VIC 3976 |