| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | STUART J GRAY LIMITED | — | Disuelta | 10/5/2026 – presente |
| Cargo | CASTLE FIREBRICK CO LTD | 🇬🇧United Kingdom | Disuelta | 17/5/2026 – 17/4/2014 |
| Cargo | NATIONAL STEAM CAR ASSOCIATION LIMITED | — | Disuelta | 31/5/2026 – 31/7/2019 |
| Cargo | NATIONAL TRACTION ENGINE TRUST | 🇬🇧United Kingdom | Activa | 27/1/2026 – 19/11/2016 |
31/7/2019
resigned
19/11/2016
resigned
15/11/2008
appointed