| Company | Timeline | Status | |
| Cambridge Education International Centre Ltd Director • Retired | 29 May 2020←2 Years 10 Months→18 Apr 2023 | Active | |
Cantab Mathematics Limited Director • Director | 27 Sep 2017←1 Year 5 Months→5 Mar 2019 | Dissolved | |
David Whitebread Consultancy Limited Director • Director | 26 Jul 2017←2 Years 3 Months→12 Nov 2019 | Dissolved | |
