| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | YLEM UDH LIMITED | — | Dissolved | 23/04/2026 – 08/05/2018 |
| Officer | SWITCH2 UDH LIMITED | — | Dissolved | 23/04/2026 – 08/05/2018 |
| Officer | ADAMSON UDH LIMITED | — | Dissolved | 23/04/2026 – 13/03/2017 |
| Officer | NATURAL POWER INTERNATIONAL LIMITED | 🇬🇧Regno Unito | Dissolved | 06/05/2026 – 14/06/2017 |
| Officer | CBS SERVICES HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 07/05/2026 – 16/05/2016 |
| Officer | ENER-G POWER2 LIMITED | 🇬🇧Regno Unito | Dissolved | 07/05/2026 – 16/05/2016 |
| Officer | ENER-G SUSTAINABLE TECHNOLOGIES LIMITED | — | Dissolved | 02/06/2026 – 01/05/2014 |
| Officer | FLEETWOOD ENERGY RECOVERY LIMITED | — | Dissolved | 04/06/2026 – 24/05/2013 |
| Officer | KNOWSLEY ENERGY RECOVERY LIMITED | 🇬🇧Regno Unito | Active | 30/05/2026 – 24/05/2013 |
| Officer | BEDFORD ENERGY RECOVERY LIMITED | — | Dissolved | 04/06/2026 – 24/05/2013 |
| Officer | DUDLEY ENERGY RECOVERY LIMITED | — | Dissolved | 03/06/2026 – 24/05/2013 |
| Officer | BRADFORD ENERGY RECOVERY LIMITED | — | Dissolved | 03/06/2026 – 24/05/2013 |
| Officer | NEWPORT ENERGY RECOVERY LIMITED | — | Dissolved | 04/06/2026 – 24/05/2013 |
08/05/2018
resigned
14/06/2017
resigned
26/01/2012
appointed