| Company | Timeline | Status | |
| Locate Zero Emissions Vehicles Ltd Director • Professor | 5 May 2022←2 Years 11 Months→21 Apr 2025 | Dissolved | |
| Sustainable Energies Scotland Limited Director • Professor Of Chemistry | 27 Aug 2021←4 Years→Current | Active | |
Green Golf Solutions Limited Director • Professor | 28 Oct 2016←4 Years→1 Dec 2020 | Dissolved | |
