| Company | Timeline | Status | |
| Bsria Limited Director • Engineer | 8 Mar 2000←10 Years→13 Oct 2010 | Active | |
Energy Procurement & Design Limited Secretary • Unreported | 8 Apr 1998←2 Years 1 Month→31 May 2000 | Dissolved | |
| Building Services Research And Intelligence Association (The) Director • Engineer | 20 Oct 1994←15 Years→13 Oct 2010 | Active | |
