| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | O’BRIEN FAMILY HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 13/01/2026 – present |
| Officer | O’BRIEN CONTAINER AND STORAGE (HOLDINGS) LIMITED | 🇬🇧United Kingdom | Active | 08/01/2026 – present |
| Officer | O’BRIEN FINANCE COMPANY LIMITED | 🇬🇧United Kingdom | Active | 20/03/2026 – present |
| Officer | O’BRIEN AGGREGATE TUTHILL LIMITED | 🇬🇧United Kingdom | Active | 19/03/2026 – present |
| Officer | O’BRIEN AGGREGATE HOLDING LIMITED | 🇬🇧United Kingdom | Active | 19/03/2026 – present |
| Officer | DUNPARK LIMITED | 🇬🇧United Kingdom | Active | 28/03/2026 – present |
| Officer | TIMEC 1779 LIMITED | 🇬🇧United Kingdom | Active | 30/03/2026 – present |
| Officer | TIMEC 1778 LIMITED | 🇬🇧United Kingdom | Active | 31/03/2026 – present |
| Officer | CHARD WORKS LIMITED | 🇬🇧United Kingdom | Active | 29/03/2026 – present |
| Officer | OBR-G HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 28/03/2026 – present |
| Officer | O’BRIEN LAND AND ESTATES LIMITED | 🇬🇧United Kingdom | Active | 06/01/2026 – present |
| Officer | O'BRIEN CONTAINER STORAGE LIMITED | 🇬🇧United Kingdom | Active | 06/01/2026 – present |
| Officer | TIMEC 1777 LIMITED | 🇬🇧United Kingdom | Active | 31/03/2026 – present |
| Officer | TIMEC 1741 LIMITED | 🇬🇧United Kingdom | Active | 16/12/2025 – present |
| Officer | TIMEC 1740 LIMITED | 🇬🇧United Kingdom | Active | 26/01/2026 – 02/03/2021 |
| Officer | TIMEC 1742 LIMITED | 🇬🇧United Kingdom | Active | 11/02/2026 – present |
| Officer | O'BRIEN STORAGE LIMITED | 🇬🇧United Kingdom | Active | 05/04/2026 – present |
| Officer | O’BRIEN ARCHITECTURAL SALVAGE SERVICES LIMITED | — | Active | 07/04/2026 – 17/12/2020 |
| Officer | O’BRIEN RECLAMATION LIMITED | 🇬🇧United Kingdom | Dissolved | 07/04/2026 – present |
| Officer | BOLDON CONTAINER STORAGE LIMITED | 🇬🇧United Kingdom | Dissolved | 09/04/2026 – present |
| Officer | WEST ESTATES DEVELOPMENT LTD | 🇬🇧United Kingdom | Active | 28/05/2026 – present |
| Officer | O'BRIEN AGGREGATE MARSDEN LIMITED | 🇬🇧United Kingdom | Active | 18/04/2026 – present |
| Officer | OAK HOUSE ESTATES LIMITED | 🇬🇧United Kingdom | Active | 05/03/2026 – present |
| Officer | O'BRIEN METAL RECYCLING LIMITED | 🇬🇧United Kingdom | Dissolved | 24/04/2026 – present |
| Officer | O'BRIEN AGGREGATE LIMITED | 🇬🇧United Kingdom | Dissolved | 21/04/2026 – present |
| Officer | O'BRIEN PROPERTY INVESTMENTS LIMITED | 🇬🇧United Kingdom | Active | 24/04/2026 – 04/11/2025 |
| Officer | O'BRIEN WASTE RECYCLING SOLUTIONS HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 08/04/2026 – 05/07/2017 |
| Officer | O'BRIEN WASTE RECYCLING SOLUTIONS LTD | 🇬🇧United Kingdom | Dissolved | 31/12/2025 – 05/07/2017 |
| Officer | TIMEC 1484 LIMITED | 🇬🇧United Kingdom | Active | 19/12/2025 – present |
| Officer | CONTROLLED DECOMMISSIONING & DEMOLITION LIMITED | 🇬🇧United Kingdom | Dissolved | 13/05/2026 – present |
| Officer | CONTROLLED DEMOLITION & DECOMMISSIONING LIMITED | 🇬🇧United Kingdom | Dissolved | 13/05/2026 – present |
| Officer | MAX WASTE RECYCLING LIMITED | 🇬🇧United Kingdom | Dissolved | 17/05/2026 – present |
| Officer | TIMEC 1485 LIMITED | 🇬🇧United Kingdom | Dissolved | 20/05/2026 – present |
| Officer | BR WASTE MANAGEMENT SERVICES LTD | — | Dissolved | 12/06/2026 – present |
| Officer | NATIONWIDE DEMOLITION & DISMANTLING LIMITED | 🇬🇧United Kingdom | Active | 09/06/2026 – present |
| Officer | G. O'BRIEN & SONS (NATIONWIDE DEMOLITION CONTRACTORS) LIMITED | 🇬🇧United Kingdom | Active | 21/02/2026 – present |
09/06/2026
United Kingdom → England
05/06/2026
England → United Kingdom
03/03/2015
appointed