| # | Entity | Status | State |
|---|---|---|---|
| 1 | 24 605 681 445 SEIDEL DESIGN ELECTRICAL PTY LIMITED |
ABN Active | NSW 2568 |
| 2 | 57 865 363 722 D.P SEIDEL & M.J SEIDEL SEIDEL DESIGN SOLUTIONS |
ABN Cancelled | NSW 2540 |
| 3 | 96 321 279 223 BRYAN SEIDEL Seidel Design Electrical |
ABN Cancelled | NSW 2570 |
| 4 | 19 922 525 500 STEPHEN MARK SEIDEL Seidel Drafting & Design |
ABN Active | NSW 2536 |
| 5 | 19 922 525 500 STEPHEN MARK SEIDEL Seidel Building Design |
ABN Active | NSW 2536 |