| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | NEW WAVE DIAGNOSTICS LIMITED | 🇬🇧United Kingdom | Disuelta | 7/6/2026 – 1/4/2013 |
| Cargo | WOBLA LIMITED | — | Disuelta | 10/6/2026 – presente |
| Cargo | CLARKE ELECTRICAL SERVICES LTD | 🇬🇧United Kingdom | Activa | 6/1/2026 – presente |
| Cargo | CLARKE BROS. LIMITED | 🇬🇧United Kingdom | Activa | 13/3/2026 – presente |
| Cargo | UPPER PARKBURY LIMITED | 🇬🇧United Kingdom | Activa | 18/12/2025 – 19/10/1996 |
1/4/2013
resigned
12/7/2007
appointed
20/5/1992
appointed