| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | NEW WAVE DIAGNOSTICS LIMITED | 🇬🇧United Kingdom | Dissolved | 07/06/2026 – 01/04/2013 |
| Officer | WOBLA LIMITED | — | Dissolved | 10/06/2026 – present |
| Officer | CLARKE ELECTRICAL SERVICES LTD | 🇬🇧United Kingdom | Active | 06/01/2026 – present |
| Officer | CLARKE BROS. LIMITED | 🇬🇧United Kingdom | Active | 13/03/2026 – present |
| Officer | UPPER PARKBURY LIMITED | 🇬🇧United Kingdom | Active | 18/12/2025 – 19/10/1996 |
01/04/2013
resigned
12/07/2007
appointed
20/05/1992
appointed