| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | DATACOW LIMITED | 🇬🇧Regno Unito | Active | 25/06/2024 – present |
| Person with significant control | THE RON DEARING UTC | 🇬🇧Regno Unito | Active | 18/03/2024 – 08/09/2021 |
| Person with significant control | R D ENTERPRISES LIMITED | — | Dissolved | 18/03/2024 – present |
| Person with significant control | OUTSOURCE RESOURCE LIMITED | — | Active | 19/03/2024 – present |
| Person with significant control | EWH HOLDCO LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | EWH FINCO LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | ENGINEERING AND DESIGN SERVICES GROUP LTD | — | Active | 18/03/2024 – 06/04/2016 |
| Person with significant control | AEROTRUSS LIMITED | — | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | BRAWLEY CONSTRUCTION LIMITED | 🇬🇧Regno Unito | Active | 18/03/2024 – 06/04/2016 |
| Person with significant control | ENERGY WORKS (HULL) LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | SPENCER BUILDING & CIVIL ENGINEERING LTD | — | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | CONSTRUCTION PLANT AND SITE SERVICES GROUP LTD | — | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | C SPENCER (HOLDINGS) LTD | 🇬🇧Regno Unito | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | XER LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – present |
| Person with significant control | LAYER8 IT LIMITED | — | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | SLIPFORM ENGINEERING LTD | 🇬🇧Regno Unito | Active | 19/03/2024 – 06/04/2016 |
| Person with significant control | C SPENCER ENVIRONMENTAL LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – present |
| Person with significant control | SPENCER BRIDGE ENGINEERING LIMITED | — | Active | 18/03/2024 – 06/04/2016 |
| Person with significant control | SPENCER PROFESSIONAL SERVICES LIMITED | — | Active | 25/06/2024 – 06/04/2016 |
| Person with significant control | ASBESTOS AWARENESS AND IDENTIFICATION SERVICES LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – 31/05/2022 |
| Person with significant control | SPENCER RAIL ENGINEERING LIMITED | 🇬🇧Regno Unito | Active | 18/03/2024 – 06/04/2016 |
| Person with significant control | SPENCER ENGINEERING GROUP LIMITED | 🇬🇧Regno Unito | Active | 19/03/2024 – present |
13/04/2026
United Kingdom → England
07/04/2026
England → United Kingdom
06/04/2016
resigned