| Company | Timeline | Status | |
Analytik Jena (UK) Limited Director • Engineer | 30 Apr 2007←10 Years→2 May 2017 | Dissolved | |
| Lambda Advanced Technology Limited Director • Unreported | 6 Jun 2002←23 Years→Current | Active | |
David Peter Harvey Limited Director • Sales | 28 Jun 2001←14 Years→24 May 2016 | Dissolved | |
