| Company | Timeline | Status | |
| British Compressed Air Society Limited Director • Company Director | 7 May 2008←12 Years→22 Dec 2020 | Active | |
| Silicair Dryers Limited Director • Unreported | 31 Oct 2002←23 Years→Current | Active | |
| Silicair Dryvent Limited Director • Unreported | 15 Oct 2002←23 Years→Current | Active | |
