| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | TROY-IKODA LIMITED | 🇬🇧United Kingdom | Disuelta | 28/1/2026 – 31/8/2017 |
| Cargo | RUDALL BLANCHARD ASSOCIATES GROUP LIMITED | 🇬🇧United Kingdom | Solicitud de baja | 28/1/2026 – 31/8/2017 |
| Cargo | GEOCON GROUP SERVICES LIMITED | 🇬🇧United Kingdom | Solicitud de baja | 31/12/2025 – 31/8/2017 |
| Cargo | NAUTILUS (SEAA) LIMITED | — | Disuelta | 8/6/2026 – 31/8/2017 |
| Cargo | TETRA TECH OCCUPATIONAL HEALTH LIMITED | 🇬🇧United Kingdom | Activa | 30/3/2026 – 31/8/2017 |
| Cargo | RPS MOUNTAINHEATH LIMITED | 🇬🇧United Kingdom | Disuelta | 10/12/2025 – 31/8/2017 |
| Cargo | RPS LABORATORIES LIMITED | 🇬🇧United Kingdom | Disuelta | 10/12/2025 – 31/8/2017 |
| Cargo | RPS TRUSTEES LIMITED | 🇬🇧United Kingdom | Activa | 6/5/2026 – 31/8/2017 |
| Cargo | TETRA TECH ENVIRONMENTAL MANAGEMENT LIMITED | 🇬🇧United Kingdom | Activa | 30/3/2026 – presente |
| Cargo | RPS CONSULTANTS LIMITED | 🇬🇧United Kingdom | Disuelta | 31/12/2025 – presente |
31/8/2017
resigned
3/10/2016
appointed
22/4/1994
appointed