| # | Entity | Status | State |
|---|---|---|---|
| 1 | 43 130 548 079 Sentinel Security Technologies Pty Ltd |
ABN Cancelled | SA 5118 |
| 2 | 62 131 874 961 Sentinel Technologies Group of Companies Pty Ltd |
ABN Cancelled | SA 5009 |
| 3 | 86 130 544 142 Sentinel Electrical Technologies Pty Ltd |
ABN Cancelled | SA 5118 |
| 4 | 36 666 308 827 B & B SECURITY SOLUTIONS PTY LTD Sentinel Security & Technology Group |
ABN Active | ACT 2903 |