| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | BURTON'S NORTHUMBRIAN HOLDINGS LIMITED | — | Disuelta | 5/6/2026 – 8/5/2009 |
| Cargo | OISE HOLDINGS LIMITED | 🇬🇧United Kingdom | Activa | 12/6/2026 – 19/5/2014 |
| Cargo | HOWPER 566 LIMITED | — | Disuelta | 14/6/2026 – presente |
| Cargo | FRONERI INTERNATIONAL LIMITED | 🇬🇧United Kingdom | Activa | 13/6/2026 – 31/12/2010 |
| Cargo | OXSRAD LTD | 🇬🇧United Kingdom | Activa | 18/1/2026 – 1/7/2009 |
| Cargo | OXSRAD LTD | 🇬🇧United Kingdom | Activa | 18/1/2026 – 18/2/2009 |
19/5/2014
resigned
31/12/2010
resigned
21/3/2001
appointed