| Company | Timeline | Status | |
| JS Johnston Consulting Limited Director • Management Consultant | 6 Aug 2020←3 Years→23 Apr 2024 | Dissolved | |
| Greenwood Place Management Company Limited Director • Chartered Accountant | 1 Dec 2015←8 Months→15 Aug 2016 | Active | |
| Cra International (UK) Limited Director • Management Consultant | 8 Nov 2002←3 Years→25 Jan 2006 | Active | |
