| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | TROY-IKODA LIMITED | 🇬🇧Regno Unito | Dissolved | 28/01/2026 – 31/08/2017 |
| Officer | RUDALL BLANCHARD ASSOCIATES GROUP LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 28/01/2026 – 31/08/2017 |
| Officer | GEOCON GROUP SERVICES LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 31/12/2025 – 31/08/2017 |
| Officer | NAUTILUS (SEAA) LIMITED | — | Dissolved | 08/06/2026 – 31/08/2017 |
| Officer | TETRA TECH OCCUPATIONAL HEALTH LIMITED | 🇬🇧Regno Unito | Active | 30/03/2026 – 31/08/2017 |
| Officer | RPS MOUNTAINHEATH LIMITED | 🇬🇧Regno Unito | Dissolved | 10/12/2025 – 31/08/2017 |
| Officer | RPS LABORATORIES LIMITED | 🇬🇧Regno Unito | Dissolved | 10/12/2025 – 31/08/2017 |
| Officer | RPS TRUSTEES LIMITED | 🇬🇧Regno Unito | Active | 06/05/2026 – 31/08/2017 |
| Officer | TETRA TECH ENVIRONMENTAL MANAGEMENT LIMITED | 🇬🇧Regno Unito | Active | 30/03/2026 – present |
| Officer | RPS CONSULTANTS LIMITED | 🇬🇧Regno Unito | Dissolved | 31/12/2025 – present |
31/08/2017
resigned
03/10/2016
appointed
22/04/1994
appointed