| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | BARR & SONS LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | BARRNON DEFENCE LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | DERWENT FLUID PROPERTIES LIMITED | — | Active | 18/06/2024 – 20/02/2019 |
| Person with significant control | DERWENT FLUID POWER LIMITED | 🇬🇧Regno Unito | Liquidation | 19/06/2024 – 20/02/2019 |
| Person with significant control | — | — | Active | 18/06/2024 – present |
| Person with significant control | BLADECUTTER LIMITED | — | Active | 18/06/2024 – present |
| Person with significant control | BARRNON LTD | — | Active | 18/06/2024 – present |
29/04/2020
appointed
03/01/2020
appointed
06/04/2016
appointed