| REEVE ZECHA & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| ZEPPELIN ASSOCIATES LIMITED | Private company limited by shares | Live |
| MICHAEL ZHENG & ASSOCIATES LIMITED | Private company limited by shares | Live |
| Michael Zheng & Associates Pty Limited | Private company limited by shares | Live |
| CHA AND ZHUGE ASSOCIATES LIMITED | Private company limited by shares | Live |
| ZOOM & SIZES AND ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| ZOOM & SIZES AND ASSOCIATES LIMITED | Private company limited by shares | Live |
| N Zurstrassen & Associates Limited | Private company limited by shares | Live |
| PIRIE AND ASSOCIATES-DESIGNERS LIMITED | Private company limited by shares | Dissolved |