| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | THE FIRTH FIRMAC GROUP LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 18/06/2024 – present |
| Person with significant control | LEE ELECTRONICS ENGINEERING LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | FIRTH SHEET METAL LIMITED | 🇬🇧Regno Unito | Active | 26/06/2024 – 02/04/2026 |
| Person with significant control | FIRMAC INTERNATIONAL LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 24/06/2024 – present |
| Person with significant control | FIRMAC LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – 02/05/2023 |
| Person with significant control | SPIRAL BEND LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | KD ENGINEERING (SCARBOROUGH) LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Officer | KD ENGINEERING (SCARBOROUGH) LIMITED | 🇬🇧Regno Unito | Dissolved | 09/05/2026 – present |
| Officer | PROFILE ENGINEERING LIMITED | — | Dissolved | 04/06/2026 – present |
| Officer | SPIRAL BEND LIMITED | 🇬🇧Regno Unito | Active | 20/05/2026 – present |
| Officer | FIRTH SHEET METAL LIMITED | 🇬🇧Regno Unito | Active | 30/01/2026 – 02/04/2026 |
02/04/2026
resigned
02/05/2023
resigned
25/01/1993
appointed