| Company | Timeline | Status | |
| Pipemate Limited Director • Company Director | 7 Sep 1995←27 Years→13 Jun 2023 | Dissolved | |
| Sylaco Limited Director • Company Director | 3 Mar 1992←31 Years→17 Oct 2023 | Dissolved | |
| Ritchie Realisation Limited Director • Hydrographic Surveyor | 30 Dec 1988←3 Years→26 Feb 1992 | Active | |
