| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | WILLIAMS POWER INJECTION SYSTEMS (BLAENAVON) LTD. | 🇬🇧United Kingdom | Dissolved | 22/06/2024 – present |
| Person with significant control | ANTHONY P WILLIAMS LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – present |
| Person with significant control | SHOPFITTING SPECIALISTS LIMITED | 🇬🇧United Kingdom | Proposal to strike off | 23/06/2024 – present |
| Officer | CALAHANS DEVELOPMENTS LIMITED | 🇬🇧United Kingdom | Active | 25/02/2026 – 31/08/2016 |
| Officer | WILLIAMS POWER INJECTION SYSTEMS (BLAENAVON) LTD. | 🇬🇧United Kingdom | Dissolved | 17/12/2025 – present |
24/05/2026
United Kingdom → Netherlands
25/02/2026
Netherlands → United Kingdom
14/02/2011
appointed