| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | SWITHLAND HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 17/04/2026 – present |
| Person with significant control | SWITHLAND HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 23/06/2024 – present |
| Person with significant control | KELVIN ENERGY LIMITED | 🇬🇧Regno Unito | Liquidation | 26/06/2024 – 01/11/2017 |
| Person with significant control | KELVIN ENERGY (UK) LIMITED | 🇬🇧Regno Unito | Liquidation | 18/06/2024 – 02/02/2018 |
| Person with significant control | KELVIN POWER (UK) LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | SWITHLAND POWER CONSULTANTS LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | — | — | Active | 26/06/2024 – 01/11/2017 |
| Person with significant control | KELVIN WINDGEN LIMITED | 🇬🇧Regno Unito | Active | 26/06/2024 – present |
| Person with significant control | SWITHLAND POWER STRUCTURES LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | KELVIN POWER ENGINEERING LIMITED | — | Dissolved | 18/06/2024 – 01/11/2017 |
| Officer | KELVIN POWER (UK) LIMITED | 🇬🇧Regno Unito | Active | 27/03/2026 – 22/07/2017 |
| Officer | SWITHLAND POWER CONSULTANTS LIMITED | 🇬🇧Regno Unito | Active | 27/03/2026 – 22/07/2017 |
| Officer | SWITHLAND POWER STRUCTURES LIMITED | 🇬🇧Regno Unito | Active | 27/03/2026 – 22/07/2017 |
| Officer | KELVIN CONSTRUCTION COMPANY LIMITED | — | Active | 20/05/2026 – 02/02/2018 |
| Officer | KELVIN ENGINEERING CONSULTANTS LIMITED | — | Dissolved | 05/06/2026 – 05/09/2010 |
| Officer | KELVIN POWER ENGINEERING LIMITED | — | Dissolved | 05/06/2026 – 02/02/2018 |
05/06/2026
England → United Kingdom
01/05/2026
England → United Kingdom
05/09/2010
resigned