| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | SERO BEE LIMITED | 🇬🇧Regno Unito | Active | 19/12/2025 – present |
| Person with significant control | SERO ENERGY LIMITED | 🇬🇧Regno Unito | Active | 21/06/2024 – present |
| Officer | SERO ENERGY LIMITED | 🇬🇧Regno Unito | Active | 06/04/2026 – present |
| Person with significant control | JAMES L WILLIAMS ORTHOPAEDIC SURGEON LTD | 🇬🇧Regno Unito | Active | 26/06/2024 – present |
| Person with significant control | SERO LIFE LIMITED | 🇬🇧Regno Unito | Active | 23/06/2024 – 30/04/2020 |
| Officer | SERO LIFE LIMITED | 🇬🇧Regno Unito | Active | 17/03/2026 – present |
| Officer | YR HADAU LIMITED | 🇬🇧Regno Unito | Active | 31/03/2026 – present |
| Person with significant control | SERO HOMES LIMITED | 🇬🇧Regno Unito | Active | 26/06/2024 – 15/11/2018 |
| Officer | SERO TECHNOLOGIES LIMITED | 🇬🇧Regno Unito | Active | 19/04/2026 – present |
| Person with significant control | SERO TECHNOLOGIES LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – 30/11/2018 |
| Officer | SERO HOMES LIMITED | 🇬🇧Regno Unito | Active | 13/02/2026 – present |
| Officer | BIO ASH LIMITED | 🇬🇧Regno Unito | Dissolved | 23/04/2026 – present |
| Officer | AQUALOR ENERGI (OLDHAM) LIMITED | 🇬🇧Regno Unito | Dissolved | 26/04/2026 – 12/07/2018 |
| Officer | ECO2 WSH LIMITED | 🇬🇧Regno Unito | Dissolved | 26/04/2026 – 12/07/2018 |
19/06/2024
United Kingdom → Wales
22/12/2023
appointed
25/05/2016
appointed