| Company | Timeline | Status | |
| Lothian School Of Technology Trading Limited Director • Retired | 17 Nov 2023←1 Year 11 Months→Current | Active | |
| Lothian School Of Technology Trading Limited Director • Retired | 17 Nov 2023←3 Months→23 Feb 2024 | Active | |
| Ocean Cooling Technology Limited Director • Retired | 14 Oct 2003←22 Years→Current | Active | |
| Ocean Cooling Technology Limited Director • Retired | 14 Oct 2003←20 Years→23 Feb 2024 | Active | |
| Artemis Intelligent Power Limited Director • University Professor | 8 Jun 1989←29 Years→30 Jun 2018 | Active | |
