| Company | Timeline | Status | |
| Oxford Sailing Club Director • Consulting Software Engineer | 6 Mar 2012←4 Years→3 Oct 2016 | Active | |
| Cimicifuga Limited Director • Computer Consultant | 19 Sep 2000←20 Years→27 Apr 2021 | Dissolved | |
| Oxford Operating Systems Limited Director • Computer Consultant | 19 Sep 2000←20 Years→17 Nov 2020 | Dissolved | |
