| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | WEIRSOLUTIONS 2024 LTD | 🇬🇧Regno Unito | Active | 01/10/2025 – present |
| Officer | TILE HILL G&CS LIMITED | 🇬🇧Regno Unito | Active | 18/03/2026 – present |
| Officer | TILE HILL HOUSING LIMITED | 🇬🇧Regno Unito | Active | 18/03/2026 – present |
| Officer | TILE HILL GROUP LIMITED | 🇬🇧Regno Unito | Active | 25/02/2026 – present |
| Person with significant control | TILE HILL GROUP LIMITED | 🇬🇧Regno Unito | Active | 21/06/2024 – present |
| Officer | AJW LTD | 🇬🇧Regno Unito | Dissolved | 02/02/2026 – present |
| Person with significant control | AJW LTD | 🇬🇧Regno Unito | Dissolved | 09/06/2024 – present |
| Officer | BIOTRACKOS LTD | 🇬🇧Regno Unito | Active | 30/03/2026 – 17/06/2025 |
| Person with significant control | WEIR SOLUTIONS LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 26/06/2024 – present |
| Person with significant control | TILE HILL INTERIM & EXECUTIVE LIMITED | 🇬🇧Regno Unito | Active | 01/03/2024 – 30/08/2024 |
| Officer | TILE HILL INTERIM & EXECUTIVE LIMITED | 🇬🇧Regno Unito | Active | 29/01/2026 – present |
| Officer | DAVID WEIR LIMITED | — | Dissolved | 19/05/2026 – present |
19/05/2026
Scotland → England
02/05/2026
England → Scotland
29/05/2012
appointed