| Company | Timeline | Status | |
| Cryox Limited Director • Consultant | 2 Aug 2019←4 Years→29 Aug 2023 | Dissolved | |
| Oxford Cryogenics Limited Director • Consultant | 29 Aug 2014←9 Years→29 Aug 2023 | Dissolved | |
| Cryon Limited Director • Director | 22 Aug 2012←13 Years→Current | Active | |
| Vale And Downland Museum (Wantage) Director • Self-employed | 7 Jun 2012←3 Years→6 Dec 2015 | Active | |
| Leverton Gardens Management Limited Director • Consultant | 23 Jan 2009←10 Years→29 Oct 2019 | Active | |
