| # | Entity | Status | State |
|---|---|---|---|
| 1 | 12 501 183 868 DRAMA SOUTH AUSTRALIA (DSA) INCORPORATED |
ABN Active | SA 5065 |
| 2 | 16 681 364 143 DSA DEVELOPMENTS AUSTRALIA PTY LTD |
ABN Active | NSW 2076 |
| 3 | 60 655 901 170 DSA AUSTRALIA PTY LIMITED |
ABN Active | NSW 2071 |
| 4 | 83 612 667 571 DSA BUILDING AUSTRALIA PTY LTD |
ABN Active | NSW 2570 |
| 5 | 45 212 189 009 MICHAEL ADAMS DSA (DRILLING SUPPLIES AUSTRALIA) |
ABN Active | WA 6450 |
| 6 | 48 439 917 607 NICHOLAS BARRY KUYS DRIVER SUPPORT AUSTRALIA DSA |
ABN Active | TAS 7310 |