| # | Entity | Status | State |
|---|---|---|---|
| 1 | 29 871 263 960 Independent Signalling Contractors Association Incorporated |
ABN Cancelled | NSW 2795 |
| 2 | 39 351 702 097 SIGNAL HILL SANCTUARY INCORPORATED |
ABN Active | NSW 2582 |
| 3 | 88 374 036 118 N.S.W. RAILWAY SIGNALLING MUSEUM INCORPORATED |
ABN Cancelled | NSW 1630 |
| 4 | 43 543 461 893 STUART JOHN SIGNAL Signal Incorporated Enterprises Readiness |
ABN Active | NSW 2168 |