| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | SUB SURFACE SOUTH EAST LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | SUB SURFACE NORTH WEST LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | SUB SURFACE LABORATORIES LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | SUB SURFACE CONSULTANTS LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | SUB SURFACE LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | CLIFFORD MARSDEN SERVICES LIMITED | 🇬🇧Regno Unito | Active | 05/01/2026 – present |
| Officer | SUB SURFACE MIDLANDS LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
| Officer | SUB SURFACE NORTH EAST LIMITED | 🇬🇧Regno Unito | Active | 31/12/2025 – present |
24/06/2004
appointed
27/02/1996
appointed
22/12/1995
appointed