| الدور | الشركة | البلد | الحالة | نطاق التاريخ |
|---|---|---|---|---|
| ضابط | STUART J GRAY LIMITED | — | تم حلها | 10/05/2026 – حاضر |
| ضابط | CASTLE FIREBRICK CO LTD | 🇬🇧United Kingdom | تم حلها | 17/05/2026 – 17/04/2014 |
| ضابط | NATIONAL STEAM CAR ASSOCIATION LIMITED | — | تم حلها | 31/05/2026 – 31/07/2019 |
| ضابط | NATIONAL TRACTION ENGINE TRUST | 🇬🇧United Kingdom | نشط | 27/01/2026 – 19/11/2016 |
31/07/2019
resigned
19/11/2016
resigned
15/11/2008
appointed