| Company | Timeline | Status | |
| Cancer Research Technology Limited Director • Cancer Research | 29 Nov 2019←6 Years→Current | Active | |
| Owkin UK Ltd Director • Director | 19 Feb 2019←1 Year 1 Month→31 Mar 2020 | Active | |
| Parkermoss Ltd Director • Consultant | 12 Feb 2018←4 Years→21 Jun 2022 | Dissolved | |
Parker Strategy Ltd Director • Strategy | 21 Jun 2013←1 Year→15 Jul 2014 | Dissolved | |
