| Company | Timeline | Status | |
The British Occupational Hygiene Society Director • Director/consultant Occupational Hygieni  | 19 Jul 2011←2 Years 8 Months→25 Mar 2014  | Dissolved  | |
| Workplace Environment Solutions Limited Director • Unreported  | 30 Oct 2003←22 Years→Current  | Active  | |
| Workplace Environment Solutions Limited Secretary • Unreported  | 30 Oct 2003←22 Years→Current  | Active  | |
