| # | Entity | Status | State |
|---|---|---|---|
| 1 | 97 617 544 644 NORTHERN BEACHES STAIR WORKS PTY LTD |
ABN Active | NSW 2099 |
| 2 | 12 219 264 076 THE STAINTON FAMILY DISC TRUST STAINTON MASTER BUILDERS NORTHERN STAIR |
ABN Active | QLD 4552 |
| 3 | 50 065 478 408 ROBUILD PTY LTD NORTHERN STAIRS |
ABN Active | QLD 4814 |
| 4 | 91 613 368 408 IAN NOLAN BURDETT Northern Beaches Stair Works |
ABN Active | NSW 2099 |