| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Persona con control significativo | ARTSILL LIMITED | 🇬🇧United Kingdom | Activa | 2/10/2025 – presente |
| Persona con control significativo | MTD SPREADSHEET LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – presente |
| Persona con control significativo | PMCA LIMITED | — | Activa | 26/6/2024 – presente |
| Cargo | STUDY JUNCTION LTD | 🇬🇧United Kingdom | Activa | 26/5/2026 – 1/8/2022 |
| Cargo | BX MERCHANDISE LIMITED | — | Disuelta | 5/6/2026 – presente |
| Cargo | THORBURN COLQUHOUN HOLDINGS LIMITED | 🇬🇧United Kingdom | Activa | 2/3/2026 – 5/2/2002 |
| Cargo | URS CORPORATION LIMITED | 🇬🇧United Kingdom | Activa | 2/3/2026 – 1/11/2001 |
| Cargo | WOODWARD-CLYDE LIMITED | 🇬🇧United Kingdom | Liquidación | 2/3/2026 – 30/6/2002 |
| Cargo | ARTSILL LIMITED | 🇬🇧United Kingdom | Activa | 2/3/2026 – 23/3/2013 |
10/7/2025
appointed
1/8/2022
resigned
9/7/1998
appointed