| Company | Timeline | Status | |
Esgli2015 LLP Designated LLP Member • Unreported | 10 Mar 2015←3 Years→20 Mar 2018 | Dissolved | |
| The Pool Water Treatment Advisory Group Limited Director • Public Health Consultant | 4 Jun 2013←10 Years→25 Nov 2023 | Active | |
| Leegionella Limited Director • Public Health Consultant | 10 Nov 2009←15 Years→Current | Active | |
