| Company | Timeline | Status | |
| International Occupational Hygiene Association Director • Global Manager Industrial Hygiene | 1 Jan 2011←8 Years→1 Jan 2019 | Active | |
| Stellar Quines Director • Safety Consultant | 10 Dec 2003←1 Year 10 Months→13 Oct 2005 | Active | |
The British Occupational Hygiene Society Director • Safety Practitioner | 9 Apr 2003←4 Years→18 Apr 2007 | Dissolved | |
