| Company | Timeline | Status | |
| Electrical Contractors Association Limited(The) Director • Electrical Engineer | 26 Jan 1994←6 Years→26 Jan 2000 | Active | |
| Bull & Company Limited Director • Company Director | 16 Nov 1992←6 Years→7 May 1999 | Active | |
| Bull & Company Limited Director • Unreported | 1 Jan 1970←29 Years→7 May 1999 | Active | |
