| # | Entity | Status | State |
|---|---|---|---|
| 1 | 77 422 019 124 STEVEN ROY WILL HydroKleen Perth North |
ABN Active | WA 6014 |
| 2 | 96 662 226 600 MUZMANA PTY LTD HYDROKLEEN CAIRNS NORTH |
ABN Active | QLD 4870 |
| 3 | 40 442 699 019 The Trustee for Green Family Trust Hydrokleen North East Coast |
ABN Active | QLD 4220 |
| 4 | 40 503 835 945 The Trustee for LBIR Family Trust HYDROKLEEN HOBART NORTH |
ABN Active | TAS 7030 |
| 5 | 93 654 198 320 CENTRAL VIC HEATING & COOLING PTY LTD HYDROKLEEN BENDIGO NORTH |
ABN Active | VIC 3556 |