| Company | Timeline | Status | |
| Howbuild Limited Director • Business Consultant | 21 Sep 2004←19 Years→5 Dec 2023 | Dissolved | |
| Chess Moves Limited Director • Director | 30 Apr 2001←6 Years→20 Mar 2008 | Dissolved | |
E/M Coatings Limited Director • Physicist | 19 Oct 1990←9 Years→25 Oct 1999 | Dissolved | |
