| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | RIO TINTO SECRETARIAT LIMITED | 🇬🇧Regno Unito | Active | 02/06/2026 – present |
| Officer | RIO TINTO FINANCE (USA) PLC | — | Active | 22/05/2026 – present |
| Officer | RIO TINTO INTERNATIONAL HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO INDONESIAN HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | PECHINEY AVIATUBE LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO FINANCE PLC | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO MEDICAL PLAN TRUSTEES LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | ALCAN CHEMICALS LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO LONDON LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | LAWSON MARDON FLEXIBLE LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | LAWSON MARDON SMITH BROTHERS LTD. | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO EUROPEAN HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | RIO TINTO CANADA FINANCE LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | TBAC LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | ALCAN FARMS LIMITED | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | SMITHS DETECTION LIMITED | 🇬🇧Regno Unito | Active | 12/03/2026 – 10/04/2026 |
| Officer | SMITHS GROUP FINANCE US LIMITED | 🇬🇧Regno Unito | Dissolved | 23/04/2026 – present |
| Officer | SMITHS GROUP FINANCE EU LIMITED | 🇬🇧Regno Unito | Dissolved | 23/04/2026 – present |
| Officer | SMITHS PENSIONS LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – 10/04/2026 |
| Officer | ROOF UNITS (GROUP) LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – 10/04/2026 |
| Officer | SMITHS GROUP INTERNATIONAL HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 15/12/2025 – 10/04/2026 |
| Officer | SOVOS LIMITED | 🇬🇧Regno Unito | Dissolved | 02/04/2026 – present |
| Officer | SMITHS GROUP INNOVATION LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – 10/04/2026 |
| Officer | CVE TRUSTEE LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – 10/04/2026 |
| Officer | EIS GROUP LIMITED | 🇬🇧Regno Unito | Active | 14/04/2026 – 10/04/2026 |
| Officer | AIR LOG LIMITED | 🇬🇧Regno Unito | Active | 15/12/2025 – 10/04/2026 |
| Officer | SI PROPERTIES LIMITED | 🇬🇧Regno Unito | Active | 12/01/2026 – 10/04/2026 |
| Officer | SMITHS FINANCE LIMITED | 🇬🇧Regno Unito | Active | 23/01/2026 – 10/04/2026 |
| Officer | RIO TINTO NEWCO LIMITED | 🇬🇧Regno Unito | Dissolved | 21/05/2026 – 08/06/2012 |
| Officer | RTA HOLDCO 6 LIMITED | — | Dissolved | 05/06/2026 – present |
| Officer | RIO TINTO ALUMINIUM MALAYSIA (UK) LIMITED | — | Dissolved | 07/06/2026 – 08/06/2012 |
| Officer | ALCAN CHEMICALS EUROPE LIMITED | 🇬🇧Regno Unito | Dissolved | 03/02/2026 – present |
| Officer | RIO TINTO NICKEL LIMITED | — | Dissolved | 08/06/2026 – present |
01/06/2026
appointed
21/05/2026
appointed
28/02/2007
appointed