| Company | Timeline | Status | |
| Sparrows Holdings Limited Director • Director  | 15 Dec 2020←4 Years→Current  | Active  | |
| Rapid Rays Ltd Director • Medical Doctor  | 26 Apr 2017←5 Years→28 Jun 2022  | Dissolved  | |
| Helen Rollason Heal Cancer Charity Director • Consultant Oncologist  | 8 May 2012←1 Year 11 Months→7 Apr 2014  | Active  | |
D.S. Oncology Ltd Director • Doctor Of Medicine  | 8 Mar 2012←4 Years→31 Mar 2016  | Dissolved  | |
| Sparrows Limited Director • Doctor  | 14 May 2007←18 Years→Current  | Active  | |
