| Company | Timeline | Status | |
| Pharmacam Limited Director • Company Director | 27 Jun 2000←2 Years 11 Months→6 Jun 2003 | Dissolved | |
| Carmichael Engineering Limited Director • Co-director | 28 Dec 1991←34 Years→Current | Active | |
| Carmichael Engineering Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
