| # | Entity | Status | State |
|---|---|---|---|
| 1 | 34 051 424 912 THE TRUSTEE FOR TIGHTSITE SAMPLING FOR GEOTECHNICAL AND ENVIRONMENTAL ENGINEERING INVESTIGATIONS TRUST |
ABN Active | NSW 2335 |
| 2 | 11 834 055 708 The Trustee for Bowman Engineering and Environmental Trust |
ABN Active | WA 6019 |
| 3 | 51 940 822 107 The Trustee for Environmental Science and Engineering Trust |
ABN Active | VIC 3193 |
| 4 | 57 619 124 369 The Trustee for Engineering & Environmental Services Trust |
ABN Active | NSW 2480 |
| 5 | 64 952 574 568 The Trustee for ENVIRONMENTAL ENGINEERING TRUST |
ABN Cancelled | VIC 3104 |