| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | BROCKCALYNN LTD | 🇬🇧Regno Unito | Dissolved | 11/12/2023 – present |
| Person with significant control | MARTINSTEPHENBEE LIMITED | 🇬🇧Regno Unito | Dissolved | 17/04/2024 – present |
| Person with significant control | MARTIN STEPHEN TECHNOLOGY TRADE LTD | 🇬🇧Regno Unito | Dissolved | 11/12/2023 – present |
| Person with significant control | MARTINPER LIMITED | — | Dissolved | 09/12/2023 – present |
| Person with significant control | MARTIN BEECH INSPECTION SERVICES LIMITED | — | Dissolved | 08/12/2023 – present |
| Officer | MARTIN BEECH INSPECTION SERVICES LIMITED | — | Dissolved | 12/05/2026 – present |
| Officer | DMJ (UK) LIMITED | — | Active | 14/05/2026 – 24/09/2022 |
| Officer | ECO POWER SYSTEMS (UK) LIMITED | — | Dissolved | 24/05/2026 – present |
09/12/2023
appointed
05/10/2023
appointed
16/02/2011
appointed