| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Persona con control significativo | MARK WEBSTER ENGINEERING LTD | 🇬🇧United Kingdom | Activa | 28/9/2025 – presente |
| Cargo | MARK WEBSTER ENGINEERING LTD | 🇬🇧United Kingdom | Activa | 10/12/2025 – presente |
| Cargo | MARK WEBSTER ENGINEERING LTD | 🇬🇧United Kingdom | Activa | 10/12/2025 – 10/12/2025 |
| Cargo | WESTROPWEBSTER LTD | 🇬🇧United Kingdom | Activa | 26/3/2026 – presente |
| Cargo | IEM MANAGEMENT LIMITED | 🇬🇧United Kingdom | Activa | 6/4/2026 – presente |
| Cargo | INTERNATIONAL ENVIRONMENTAL MANAGEMENT LIMITED | — | Activa | 24/5/2026 – presente |
| Cargo | WEBIE LTD. | 🇬🇧United Kingdom | Activa | 14/5/2026 – 31/5/2022 |
| Cargo | RELAXO LTD | 🇬🇧United Kingdom | Disuelta | 21/4/2026 – presente |
| Cargo | CAM MANAGEMENT SERVICES (ESSEX) LIMITED | 🇬🇧United Kingdom | Solicitud de baja | 13/3/2026 – presente |
| Persona con control significativo | WILTON HOUSE VETERINARY CLINIC LIMITED | — | Disuelta | 26/6/2024 – 31/7/2017 |
| Cargo | TILES 2 PAVING LIMITED | 🇬🇧United Kingdom | Disuelta | 7/5/2026 – presente |
| Cargo | AMP LIGHTING LIMITED | 🇬🇧United Kingdom | Disuelta | 7/5/2026 – presente |
| Cargo | WILTON HOUSE VETERINARY CLINIC LIMITED | — | Disuelta | 8/5/2026 – 31/7/2017 |
| Cargo | WEBSTER & WRIGHT (UK) LTD | 🇬🇧United Kingdom | Disuelta | 10/5/2026 – presente |
| Cargo | M WEBSTER LIMITED | — | Disuelta | 14/5/2026 – presente |
| Cargo | MORE ACT LIMITED | 🇬🇧United Kingdom | Disuelta | 18/5/2026 – presente |
| Cargo | MANORMAR LIMITED | 🇬🇧United Kingdom | Disuelta | 22/5/2026 – presente |
| Cargo | MARK T WEBSTER LTD | 🇬🇧United Kingdom | Disuelta | 24/5/2026 – presente |
| Cargo | N1 PROPERTY MAINTENANCE LIMITED | — | Disuelta | 29/5/2026 – presente |
24/5/2026
England → United Kingdom
8/5/2026
United Kingdom → England
12/12/2009
appointed