| # | Entity | Status | State |
|---|---|---|---|
| 1 | 36 069 813 476 ESSTECH COMMUNICATIONS PTY LTD |
ABN Cancelled | WA 6558 |
| 2 | 65 604 661 887 ESSTECH ITC PTY LTD |
ABN Active | WA 6121 |
| 3 | 67 673 406 543 ESSTECH PTY LTD |
ABN Active | NSW 2321 |
| 4 | 85 009 236 113 ESSTECH VOICE AND DATA SERVICES PTY LTD |
ABN Active | WA 6122 |
| 5 | 31 474 487 364 L.L BARTON & R Barton Esstech Voice and Data Services Pty Ltd |
ABN Cancelled | WA 6155 |