| Company | Timeline | Status | |
| Oxford Numerics Ltd Director • Scientific Consultant | 2 Nov 2012←12 Years→Current | Active | |
| Citycad Limited Director • Scientific Consultant | 16 May 2006←16 Years→31 Jan 2023 | Dissolved | |
| Citycad Technologies Limited Director • Software Developer | 9 Dec 2005←19 Years→Current | Active | |
