| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Persona con control significativo | BURTON CONTRACTORS LIMITED | 🇬🇧United Kingdom | Activa | 2/5/2024 – presente |
| Cargo | ARUGANI LIMITED | 🇬🇧United Kingdom | Disuelta | 29/4/2026 – 18/11/2019 |
| Cargo | BURTON CONTRACTORS LIMITED | 🇬🇧United Kingdom | Activa | 9/2/2026 – presente |
| Cargo | GLENCORE SERVICES (UK) LIMITED | 🇬🇧United Kingdom | Activa | 9/1/2026 – presente |
| Cargo | XSTRATA LIMITED | 🇬🇧United Kingdom | Activa | 12/1/2026 – presente |
| Cargo | XSTRATA VENTURES (UK) LIMITED | — | Disuelta | 23/5/2026 – presente |
| Cargo | PODLAB LIMITED | — | Disuelta | 8/6/2026 – 31/8/2011 |
| Cargo | CPDCAST.COM LIMITED | — | Disuelta | 8/6/2026 – 31/8/2011 |
| Cargo | INFORMA GROUP HOLDINGS LIMITED | — | Activa | 31/5/2026 – 31/8/2011 |
| Cargo | GREENBOTTLE LIMITED | — | Disuelta | 13/6/2026 – 29/8/2011 |
| Cargo | INFORMA HEALTHCARE LIMITED | — | Disuelta | 6/6/2026 – presente |
| Cargo | MARKETLINE INTERNATIONAL LIMITED | — | Disuelta | 11/6/2026 – presente |
| Cargo | COMPUTERWIRE LIMITED | — | Disuelta | 15/6/2026 – presente |
| Cargo | INFORMA ACQUISITIONS FINANCE LIMITED | — | Disuelta | 7/6/2026 – 31/8/2011 |
| Cargo | INFORMA ACQUISITIONS (HOLDINGS) LIMITED | — | Disuelta | 8/6/2026 – 31/8/2011 |
| Cargo | DIGITAL MEDIA PUBLISHING LTD | — | Disuelta | 15/6/2026 – presente |
| Cargo | TAYLOR & FRANCIS GROUP LIMITED | 🇬🇧United Kingdom | Activa | 13/3/2026 – 31/8/2011 |
| Cargo | INFORMA THREE LIMITED | 🇬🇧United Kingdom | Activa | 13/3/2026 – 31/8/2011 |
| Cargo | IBC (TEN) LIMITED | 🇬🇧United Kingdom | Activa | 13/3/2026 – 31/8/2011 |
| Cargo | INFORMA SIX LIMITED | 🇬🇧United Kingdom | Activa | 13/3/2026 – 31/8/2011 |
| Cargo | MILLER HEIMAN GROUP (UK) LIMITED | 🇬🇧United Kingdom | Activa | 13/5/2026 – 31/8/2011 |
| Cargo | BARHAM PHOTOGRAPHIC LIMITED | 🇬🇧United Kingdom | Disuelta | 3/2/2026 – presente |
| Cargo | INFORMA OVERSEAS INVESTMENTS LIMITED | — | Activa | 13/3/2026 – 31/8/2011 |
31/5/2026
Switzerland → United Kingdom
23/5/2026
United Kingdom → Switzerland
16/6/2006
appointed