| Company | Timeline | Status | |
| The Institution Of Lighting Professionals Director • Lighting Engr | 17 Sep 2003←2 Years→28 Sep 2005 | Active | |
| Westerheath Limited Director • Engineer | 4 Aug 1991←5 Years→14 Aug 1996 | Active | |
| Westerheath Limited Secretary • Engineer | 4 Aug 1991←5 Years→14 Aug 1996 | Active | |
