| Company | Timeline | Status | |
| The Filter Press Co Ltd Director • Director | 17 Mar 2014←9 Years→12 Feb 2024 | Active | |
| Centrifuge Engineering Services Ltd Director • Engineer | 18 May 2009←14 Years→12 Feb 2024 | Active | |
| Centrifuge Engineering Services Ltd Director • Service Engineer | 27 Mar 2009←3 Days→30 Mar 2009 | Active | |
