| # | Entity | Status | State |
|---|---|---|---|
| 1 | 23 621 336 230 HYDRO ENGINEERING 2017 PTY LTD |
ABN Cancelled | WA 6151 |
| 2 | 25 157 901 230 Hydro Engine Pty Ltd |
ABN Cancelled | VIC 3212 |
| 3 | 26 132 289 082 Hydro Valve Engineering Solutions Pty Ltd |
ABN Active | VIC 3802 |
| 4 | 31 064 116 696 HYDRO-TEC ENGINEERING PTY LTD |
ABN Active | SA 5138 |
| 5 | 35 656 924 168 N S HYDRO ENGINEERING PTY LTD |
ABN Active | VIC 3977 |
| 6 | 21 835 108 898 KOSTA SMIRNIS Urban Hydro Consulting Engineers |
ABN Active | VIC 3034 |
| 7 | 31 064 116 696 HYDRO-TEC ENGINEERING PTY LTD HYDRO TEC ENGINEERING PTY LTD |
ABN Active | SA 5138 |
| 8 | 41 384 497 543 MARAN MUTHIAH HYDRO CIVIL ENGINEERS |
ABN Active | NSW 2145 |
| 9 | 84 763 854 896 J.E DONAT & P DONAT Hydro-rite Engineering |
ABN Active | VIC 3818 |
| 10 | 86 664 929 686 MY LOCAL DAIRY PTY LTD ENGINEERED HYDRO |
ABN Active | QLD 4355 |