| Company | Timeline | Status | |
| Boarding Concern Director • Company Director | 19 Oct 2020←1 Year 2 Months→11 Jan 2022 | Dissolved | |
| The Redwoods (Cambridge) Ltd Director • Company Director | 10 Jul 2020←5 Years→Current | Active | |
| Boarding School Concern Director • Consultant | 1 Nov 2019←6 Years→Current | Active | |
| Madingley Developments Ltd Director • Company Director | 25 Mar 2015←10 Years→Current | Active | |
| Acumentia Consulting Ltd Director • Scientist | 16 Nov 2006←1 Year 10 Months→28 Sep 2008 | Dissolved | |
| Definitive Accounts Limited Director • Scientist | 25 Apr 2005←20 Years→Current | Active | |
| Paion UK Limited Director • Scientist | 20 Jan 1997←2 Years 4 Months→25 May 1999 | Active | |
| The Penguin Cruising Club Limited Director • Company Director | 31 May 1992←18 Years→19 Jan 2011 | Active | |
