| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | NORTH EAST EDUCATION TRUST | — | Dissolved | 18/06/2024 – present |
| Person with significant control | KROMEK LIMITED | 🇬🇧United Kingdom | Active | 19/06/2024 – 06/04/2016 |
| Officer | NORTH EAST EDUCATION TRUST | — | Dissolved | 04/02/2026 – 24/10/2016 |
| Officer | HEALTH INNOVATION NORTH EAST AND NORTH CUMBRIA LIMITED | 🇬🇧United Kingdom | Active | 13/05/2026 – 18/01/2024 |
| Officer | KROMEK GROUP PLC | — | Active | 14/05/2026 – present |
| Officer | KROMEK (GERMANY) LIMITED | 🇬🇧United Kingdom | Active | 14/05/2026 – present |
| Officer | DURHAM SCIENTIFIC CRYSTALS LIMITED | — | Active | 05/06/2026 – present |
| Officer | KROMEK LIMITED | 🇬🇧United Kingdom | Active | 24/04/2026 – present |
18/01/2024
resigned
24/10/2016
resigned
15/10/2003
appointed