| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | CHASE MEADOW CONSORTIUM LIMITED | — | Disuelta | 28/5/2026 – 11/2/2015 |
| Cargo | SPENCER BRIDGE ENGINEERING LIMITED | — | Activa | 12/5/2026 – presente |
| Cargo | ENGINEERING AND DESIGN SERVICES GROUP LTD | — | Activa | 7/4/2026 – presente |
| Cargo | LAYER8 IT LIMITED | — | Activa | 7/4/2026 – presente |
| Cargo | CONSTRUCTION PLANT AND SITE SERVICES GROUP LTD | — | Activa | 7/4/2026 – presente |
| Cargo | SLIPFORM ENGINEERING LTD | 🇬🇧United Kingdom | Activa | 17/5/2026 – 21/3/2023 |
| Cargo | SPENCER BUILDING & CIVIL ENGINEERING LTD | — | Activa | 7/4/2026 – presente |
| Cargo | SPENCER PROFESSIONAL SERVICES LIMITED | — | Activa | 7/4/2026 – presente |
| Cargo | ENERGY WORKS (HULL) LIMITED | 🇬🇧United Kingdom | Activa | 8/4/2026 – 20/11/2015 |
| Cargo | AEROTRUSS LIMITED | — | Activa | 5/1/2026 – presente |
| Cargo | BRAWLEY CONSTRUCTION LIMITED | 🇬🇧United Kingdom | Activa | 9/2/2026 – presente |
| Cargo | OUTSOURCE RESOURCE LIMITED | — | Activa | 16/3/2026 – presente |
| Cargo | ASBESTOS AWARENESS AND IDENTIFICATION SERVICES LIMITED | 🇬🇧United Kingdom | Activa | 19/1/2026 – presente |
| Cargo | C SPENCER ENVIRONMENTAL LIMITED | 🇬🇧United Kingdom | Activa | 5/1/2026 – presente |
| Cargo | SPENCER RAIL ENGINEERING LIMITED | 🇬🇧United Kingdom | Activa | 17/12/2025 – presente |
21/3/2023
resigned
20/11/2015
resigned
7/8/2003
appointed