| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | UNITED CHEMISTS (UCAL) LIMITED | 🇬🇧United Kingdom | Disuelta | 3/2/2026 – 14/3/1997 |
| Cargo | ARNOLDS VETERINARY PRODUCTS LIMITED | 🇬🇧United Kingdom | Activa | 11/3/2026 – 14/3/1997 |
| Cargo | JOHN BELL & CROYDEN LIMITED | 🇬🇧United Kingdom | Activa | 23/4/2026 – presente |
| Cargo | BROOMCO 4263 LIMITED | 🇬🇧United Kingdom | Activa | 18/2/2026 – presente |
14/3/1997
resigned
21/5/1991
appointed