| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | MARSHALL & SMITH LTD | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | J A MARSHALL LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | S MARSHALL CONSULTANCY LTD | 🇬🇧Regno Unito | Active | 21/06/2024 – 01/07/2023 |
| Person with significant control | — | — | Active | 19/06/2024 – present |
| Person with significant control | CLARKSTON CONTROLS LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
04/04/2026
England → United Kingdom
08/12/2025
United Kingdom → England
06/04/2016
appointed