| Company | Timeline | Status | |
| Precise Components Limited Director • Designer | 5 Mar 1996←15 Years→25 Nov 2011 | Active | |
| Chelsea Lighting Design Limited Director • Unreported | 30 Nov 1992←32 Years→Current | Active | |
| Chelsea Lighting Design Limited Secretary • Lighting Consultant | 30 Nov 1992←32 Years→Current | Active | |
