| Company | Timeline | Status | |
| TCR Invergordon Limited Director • Accountant | 17 Nov 2023←2 Years 1 Month→Current | Active | |
| Iona Carbon Capture Limited Director • Accountant | 6 Nov 2023←2 Years 1 Month→Current | Active | |
| 1ST Estate Biomethane Limited Director • Accountant | 16 Oct 2023←2 Years 2 Months→Current | Active | |
| Iona WSC (Holdings) Ltd Director • Director | 27 Jan 2021←4 Years→Current | Active | |
| Crofthead Biogas Limited Director • Investment Manager | 5 Mar 2018←7 Years→Current | Active | |
| Whitchurch Biogas Ltd Director • Investment Manager | 19 Feb 2016←9 Years→Current | Active | |
West & Bourne Ltd Director • Director | 19 Nov 2015←3 Years→24 Dec 2018 | Dissolved | |
