| # | Entity | Status | State |
|---|---|---|---|
| 1 | 57 003 197 000 DRUMMOND & ROSEN DESIGN PTY LTD |
ABN Cancelled | NSW 2040 |
| 2 | 30 698 931 551 ALEXANDER DAVID ROSEN ALEX ROSEN DESIGNS |
ABN Cancelled | SA 5046 |
| 3 | 40 006 517 680 KRIS ROSEN KRIS ROSEN DESIGN |
ABN Active | NSW 2539 |
| 4 | 80 529 398 099 ERIC JOHN ROSEN Eric Rosen Building Design |
ABN Cancelled | NSW 2065 |
| 5 | 84 634 774 986 RCC DESIGN PTY LTD Rosene Cox Building Design & Drafting |
ABN Active | TAS 7325 |
| 6 | 65 656 611 120 HILLAYA PTY LTD Rosene Design |
ABN Active | NSW 2040 |