| # | Entity | Status | State |
|---|---|---|---|
| 1 | 80 904 209 362 The Trustee for Efficiency By Design Trust |
ABN Active | VIC 3180 |
| 2 | 83 151 127 918 Efficient by Design Pty Ltd |
ABN Cancelled | WA 6066 |
| 3 | 14 810 171 883 BRENDON CLARK Efficiency by Design |
ABN Active | VIC 3180 |
| 4 | 62 195 450 706 SHIRLEY MAVOUREEN BUCKTHORPE EFFICIENCY BY DESIGN |
ABN Cancelled | WA 6208 |
| 5 | 83 151 127 918 Efficient by Design Pty Ltd Efficient by Design |
ABN Cancelled | WA 6066 |