| # | Entity | Status | State |
|---|---|---|---|
| 1 | 33 875 560 698 The Trustee for A Class Engineering Trust |
ABN Active | NSW 2783 |
| 2 | 65 066 083 529 A-CLASS VENTILATION AND ENGINEERING PTY. LIMITED |
ABN Cancelled | NSW 2193 |
| 3 | 21 651 907 133 The Trustee for The Prevost Class Trust A CLASS ENGINEERING |
ABN Cancelled | SA 5014 |
| 4 | 20 636 916 976 W.G KENNARD & H.G KENNARD A CLASS ENGINEERING |
ABN Active | NSW 2783 |