| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | OXFORD CATALYSTS TRUSTEES LIMITED | 🇬🇧Regno Unito | Dissolved | 21/01/2026 – 21/11/2015 |
| Officer | ZANTHUS INTERNATIONAL LIMITED | — | Dissolved | 27/05/2026 – present |
| Officer | VELOCYS LIMITED | 🇬🇧Regno Unito | Active | 14/06/2026 – 21/11/2015 |
21/11/2015
resigned
27/09/2011
appointed
01/02/2010
appointed