| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | STENT TEK LIMITED | 🇬🇧Regno Unito | Active | 08/05/2026 – 01/07/2020 |
| Officer | THOMAS FREDRICK WILLETTS FOUNDATION | 🇬🇧Regno Unito | Dissolved | 28/05/2026 – present |
| Officer | NEWTEC VASCULAR PRODUCTS LIMITED | — | Liquidation | 12/05/2026 – 13/09/2021 |
| Officer | EXPERIENTIA LTD | — | Dissolved | 16/05/2026 – 24/01/2013 |
| Officer | USIT MEDICAL LTD | — | Dissolved | 20/05/2026 – present |
| Officer | TOPCAT RESEARCH LIMITED | — | Dissolved | 27/05/2026 – 10/04/2012 |
| Officer | ESP TECHNOLOGY LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 16/12/2025 – present |
13/09/2021
resigned
01/07/2020
resigned
06/10/2011
appointed