| Company | Timeline | Status | |
| Lingmell Limited Director • Chartered Engineer | 19 Jan 2007←18 Years→16 Sep 2025 | Dissolved | |
| Lingmell Limited Secretary • Unreported | 19 Jan 2007←18 Years→16 Sep 2025 | Dissolved | |
| Pja Limited Secretary • Unreported | 17 Aug 2004←2 Years 7 Months→31 Mar 2007 | Active | |
| Pja Limited Director • Chartered Engineer | 27 Mar 2003←4 Years→31 Mar 2007 | Active | |
| Is Oxford Limited Director • Chartered Electrical Engineer | 6 Apr 1993←8 Months→31 Dec 1993 | Active | |
