| # | Entity | Status | State |
|---|---|---|---|
| 1 | 32 143 879 421 RK Hydrographic Services Pty Ltd |
ABN Active | NSW 2071 |
| 2 | 64 627 627 829 POSEIDON HYDROGRAPHIC SERVICES PTY LTD |
ABN Active | VIC 3441 |
| 3 | 73 112 394 046 MacDonald Hydrographic Services Pty Ltd |
ABN Active | NSW 2153 |
| 4 | 87 129 247 801 PRECISION HYDROGRAPHIC SERVICES PTY LTD |
ABN Active | SA 5042 |
| 5 | 28 720 178 322 RODNEY JOHN RIDLEY PORT HYDROGRAPHIC SERVICES |
ABN Cancelled | QLD 4503 |
| 6 | 64 627 627 829 POSEIDON HYDROGRAPHIC SERVICES PTY LTD POSEIDON HYDROGRAPHIC SERVICES |
ABN Active | VIC 3441 |
| 7 | 73 112 394 046 MacDonald Hydrographic Services Pty Ltd |
ABN Active | NSW 2153 |
| 8 | 79 625 712 620 ROSS DOHERTY RD HYDROGRAPHIC SERVICES |
ABN Active | WA 6210 |
| 9 | 83 651 030 818 STEVEN MURRAY HYDROGRAPHIC SURVEYING SERVICES |
ABN Cancelled | NSW 2530 |
| 10 | 82 100 516 603 AQUAMAP PTY LTD Aquamap Hydrographic Services |
ABN Active | QLD 4810 |
| 11 | 82 100 516 603 AQUAMAP PTY LTD Australasian Hydrographic Services |
ABN Active | QLD 4810 |