| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | TEESDALE MERCURY,LIMITED(THE) | 🇬🇧United Kingdom | Liquidation | 22/01/2025 – present |
| Person with significant control | BARR & SONS LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – present |
| Person with significant control | BARRNON DEFENCE LIMITED | 🇬🇧United Kingdom | Active | 24/06/2024 – present |
| Person with significant control | DERWENT FLUID PROPERTIES LIMITED | — | Active | 21/06/2024 – 20/02/2019 |
| Person with significant control | DERWENT FLUID POWER LIMITED | 🇬🇧United Kingdom | Liquidation | 26/06/2024 – 20/02/2019 |
| Person with significant control | — | — | Active | 22/06/2024 – present |
| Person with significant control | BLADECUTTER LIMITED | — | Active | 26/06/2024 – present |
| Person with significant control | BARRNON LTD | — | Active | 13/06/2024 – present |
06/06/2026
England → United Kingdom
09/05/2026
United Kingdom → England
06/04/2016
appointed