| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | SUB SURFACE SOUTH EAST LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | SUB SURFACE NORTH WEST LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | SUB SURFACE LABORATORIES LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | SUB SURFACE CONSULTANTS LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | SUB SURFACE LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | CLIFFORD MARSDEN SERVICES LIMITED | 🇬🇧United Kingdom | Activa | 5/1/2026 – presente |
| Cargo | SUB SURFACE MIDLANDS LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
| Cargo | SUB SURFACE NORTH EAST LIMITED | 🇬🇧United Kingdom | Activa | 31/12/2025 – presente |
24/6/2004
appointed
27/2/1996
appointed
22/12/1995
appointed