| Company | Timeline | Status | |
| Quanta Epc (Scotland) Limited Director • Company Director | 15 Oct 2024←3 Months→28 Jan 2025 | Dissolved | |
| Quanta Services Group Limited Director • Company Director | 5 Sep 2024←1 Year 3 Months→Current | Active | |
| The National Geothermal Centre Limited Director • Director | 29 Feb 2024←1 Year 9 Months→Current | Active | |
| Quanta Epc Holdings Limited Director • Chair Person | 22 Sep 2023←2 Years 2 Months→Current | Active | |
| Exergic Holdings Ltd Director • Director | 25 Aug 2022←3 Years→Current | Active | |
| Exergic Energy Ltd Director • Director | 25 Aug 2022←3 Years→Current | Active | |
| Inverroy Crisis Management Limited Director • Company Director | 7 Dec 2021←4 Years→Current | Active | |
| Shift Geothermal Ltd Director • Director | 30 Oct 2020←5 Years→Current | Active | |
| Nifepoint Ltd Director • Company Director | 11 Sep 2020←5 Years→Current | Active | |
