| Company | Timeline | Status | |
| The Institute Of Advanced Motorcyclists Limited Director • Director | 26 Mar 2025←8 Months→Current | Active | |
| Drive & Survive UK Limited Director • Director | 26 Mar 2025←8 Months→Current | Active | |
| Professional Driver Services Ltd Director • Company Director | 26 Mar 2025←8 Months→Current | Active | |
| Iam Drive & Survive Limited Director • Director | 26 Mar 2025←8 Months→Current | Active | |
| Institute Of Advanced Motorists Limited(The) Director • Director | 29 Jan 2025←10 Months→Current | Active | |
| 18 Nightingale Road Management Limited Director • Programme Lead | 5 Jun 2016←9 Years→Current | Active | |
Shona Johnstone Consulting Limited Director • Consultant | 6 Jun 2013←3 Years→13 Sep 2016 | Dissolved | |
| Low Carbon Vehicle Partnership Director • Politician | 20 Mar 2009←2 Years 3 Months→29 Jun 2011 | Active | |
| Cambridgeshire Horizons Limited Director • Politician | 19 May 2007←7 Months→18 Dec 2007 | Active | |
