| Company | Timeline | Status | |
| Copassiv Ltd Director • Architect | 21 Aug 2019←6 Years→Current | Active | |
| Passivhaus Homes Ltd Director • Architect | 29 Apr 2008←17 Years→Current | Active | |
| Cotterell Thomas & Thomas LLP Designated LLP Member • Unreported | 26 Apr 2006←15 Years→18 Jan 2022 | Dissolved | |
