| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | EUROPEAN PRE-HOSPITAL TRAUMA CARE LIMITED | 🇬🇧Regno Unito | Active | 20/02/2026 – present |
| Person with significant control | EUROPEAN PRE-HOSPITAL TRAUMA CARE LIMITED | 🇬🇧Regno Unito | Active | 24/06/2024 – present |
| Officer | NORTH WEST OFFSHORE SURVIVAL AND MARITIME CENTRE LTD | 🇬🇧Regno Unito | Active | 12/12/2025 – present |
| Person with significant control | NORTH WEST OFFSHORE SURVIVAL AND MARITIME CENTRE LTD | 🇬🇧Regno Unito | Active | 20/06/2024 – present |
| Person with significant control | NORTH WEST HYPERBARIC CENTRE LTD | 🇬🇧Regno Unito | Active | 23/06/2024 – present |
| Officer | NORTH WEST HYPERBARIC CENTRE LTD | 🇬🇧Regno Unito | Active | 12/12/2025 – present |
| Officer | OFFSHORE SURVIVAL CENTRE LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – present |
| Person with significant control | OFFSHORE SURVIVAL CENTRE LIMITED | 🇬🇧Regno Unito | Active | 24/06/2024 – present |
| Officer | HYOX SYSTEMS LIMITED | 🇬🇧Regno Unito | Active | 15/04/2026 – present |
| Person with significant control | HYOX SYSTEMS LIMITED | 🇬🇧Regno Unito | Active | 15/06/2024 – present |
| Person with significant control | EMERGENCY SERVICES TRAINING CENTRE LTD | 🇬🇧Regno Unito | Active | 30/09/2025 – present |
| Person with significant control | DAVID ALCOCK MANAGEMENT LIMITED | — | Dissolved | 21/06/2024 – present |
| Person with significant control | HYPERBARIC TREATMENT & TRAINING SERVICES LIMITED | 🇬🇧Regno Unito | Active | 24/06/2024 – present |
| Officer | EMERGENCY SERVICES TRAINING CENTRE LTD | 🇬🇧Regno Unito | Active | 26/01/2026 – present |
| Officer | DAVID ALCOCK MANAGEMENT LIMITED | — | Dissolved | 24/05/2026 – present |
| Officer | HYPERBARIC TREATMENT & TRAINING SERVICES LIMITED | 🇬🇧Regno Unito | Active | 23/12/2025 – present |
18/03/2019
appointed
19/12/2018
appointed
22/01/1996
appointed