| Company | Timeline | Status | |
| Kuroda Jena Tec Holdings Ltd Director • Unreported | 20 Aug 2007←7 Months→2 Apr 2008 | Liquidation | |
| Sigma Components (Farnborough) Limited Director • Director | 4 Jun 2007←10 Months→2 Apr 2008 | Active | |
| Sigma Precision Components UK Limited Director • Director | 21 Sep 2006←1 Year 6 Months→2 Apr 2008 | Active | |
| Sigma Precision Components Limited Director • Director | 19 Jun 2006←1 Year 9 Months→2 Apr 2008 | Active | |
Vehicle Sensor Technology Limited Director • Director | 9 Sep 2005←2 Years 6 Months→2 Apr 2008 | Dissolved | |
| Stainless Metalcraft (Chatteris) Limited Director • Director | 13 Oct 2004←3 Years→2 Apr 2008 | Active | |
| Crown UK Limited Director • Director | 28 May 2004←3 Years→2 Apr 2008 | Active | |
| Avingtrans Plc Director • Director | 28 Jun 2002←5 Years→31 May 2008 | Active | |
| C & H Precision Finishers Limited Director • Director | 2 Dec 1998←9 Years→2 Apr 2008 | Active | |
| Jena Tec Precision Limited Director • Director | 29 Oct 1992←15 Years→2 Apr 2008 | Dissolved | |
