| Company | Timeline | Status | |
| London Hazards Centre Trust Limited(The) Director • Researcher | 13 Feb 1994←1 Year→15 Feb 1995 | Active | |
| Coltmanor Limited Director • Journalist | 5 Aug 1991←10 Years→30 Aug 2001 | Active | |
| London Hazards Centre Trust Limited(The) Director • Unreported | 1 Jan 1970←25 Years→15 Feb 1995 | Active | |
