| # | Entity | Status | State |
|---|---|---|---|
| 1 | 20 894 517 254 PG & MR O'BRIEN |
ABN Active | NSW 2701 |
| 2 | 59 826 096 572 O'BRIEN JP & PG |
ABN Active | QLD 4352 |
| 3 | 69 980 187 016 PAUL AND JULIE O BRIEN PG&JM OBRIEN PLUMBING AND GASFITTING |
ABN Active | VIC 3860 |
| 4 | 72 343 174 317 A.B O'BRIEN & P.G O'BRIEN & T.G O'BRIEN & U.M O'BRIEN PG & UM O'BRIEN & SONS |
ABN Cancelled | NSW 2653 |