| # | Entity | Status | State |
|---|---|---|---|
| 1 | 44 158 475 739 PROF. DR. LEOPOLD MULLER-DIPL.-ING. ADAM HERETH ING.-BURO FUR TUNNEL- UND FELSBAU GMBH |
ABN Active | NSW 2515 |
| 2 | 84 064 871 423 DIPL PETROLEUM PTY. LTD. |
ABN Active | WA 6401 |
| 3 | 49 109 967 222 DOORWAY TO LEARNING PTY LIMITED DIPL |
ABN Active | NSW 2289 |
| 4 | 97 391 415 588 KARL STEINER DIPL ING KARL STEINER |
ABN Cancelled | NSW 2065 |