| # | Entity | Status | State |
|---|---|---|---|
| 1 | 19 675 371 409 PETERSEN CONSULTING ENGINEERS PTY LTD |
ABN Active | NSW 2289 |
| 2 | 66 092 610 154 PETERSEN ENGINES PTY. LTD. |
ABN Cancelled | QLD 4715 |
| 3 | 21 343 505 281 JOHN ROBIN PETERSEN JOHN PETERSEN ENGINEERING |
ABN Active | QLD 4650 |
| 4 | 42 302 496 916 SEAN WALTER PETERSEN PETERSEN ENGINEERING |
ABN Cancelled | QLD 4165 |
| 5 | 95 734 307 064 HAYDEN DALF PETERSEN PETERSEN ENGINEERING |
ABN Active | VIC 3612 |
| 6 | 86 749 841 436 GARY EUGENE PETERSEN GARY PETERSEN ENGINEERING |
ABN Active | WA 6155 |