| Company | Timeline | Status | |
| Sentio Voci Ltd Director • Unreported | 11 Jun 2016←9 Years→30 Dec 2025 | Dissolved | |
Plessey Special Products UK Ltd Director • Systems Engineer | 25 Nov 2003←11 Years→10 Feb 2015 | Dissolved | |
Blumlein Human Factors Limited Director • Engineer | 5 Jul 1994←20 Years→7 Apr 2015 | Dissolved | |
