| Company | Timeline | Status | |
| Auty Precision Products Limited Director • Engineer | 15 Jun 1995←19 Years→21 Sep 2014 | Active | |
| Sapphire Tooling Limited Director • Engineer | 10 Oct 1994←19 Years→21 Sep 2014 | Dissolved | |
| A.M.B. Engineering Limited Director • Engineer | 31 May 1991←23 Years→21 Sep 2014 | Active | |
| Amberline Design Limited Director • Engineer | 30 Apr 1991←13 Years→22 Mar 2005 | Active | |
