| Company | Timeline | Status | |
| Isambard Properties Limited Director • Retired | 2 Nov 2007←17 Years→8 Jul 2025 | Dissolved | |
| Ingenion Limited Director • Electronic Design Engineer | 20 Apr 2000←4 Years→22 Dec 2004 | Dissolved | |
| Ingenion Design Limited Director • Electronic Design Engineer | 4 May 1991←13 Years→22 Dec 2004 | Dissolved | |
