| # | Entity | Status | State |
|---|---|---|---|
| 1 | 82 106 823 155 RK MELLING & J MELLING & GC HALL & CJ HALL |
ABN Cancelled | WA 6160 |
| 2 | 38 805 062 786 ANZSPD RK Hall Lecture 2025 |
ABN Active | NSW 2000 |
| 3 | 79 919 152 254 Australian and New Zealand Society of Paediatric Dentistry RK Hall Lecture Series 2013 |
ABN Active | NSW 2000 |
| 4 | 90 899 130 448 G HALL & R HALL GW & RK HALL |
ABN Cancelled | NSW 2095 |