| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | O'BRIERRY LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | JOHN O'BRIEN ENVIRONMENTAL LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | OBRIENCLEANINGSERVICES LIMITED | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
| Person with significant control | DANOL DECORATORS LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | 0'BRIEN'S MAINTENANCE LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | MJM DISTRIBUTION LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | POJO PLAY LIMITED | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
| Person with significant control | JJ O'B LTD | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | UNIVERSITY TECHNICAL COLLEGE WARRINGTON | 🇬🇧Regno Unito | Active | 19/06/2024 – 01/02/2023 |
| Person with significant control | ANTHROPY LTD | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | PJ ABERDARE LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – 22/09/2021 |
| Person with significant control | GULF ENERGY SERVICES LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 19/06/2024 – present |
| Person with significant control | BOWLING GREEN CHOP HOUSE LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | O'BRIEN GROUNDWORK LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | WHITMINSTER HAULAGE LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – 17/04/2019 |
| Person with significant control | BALVRAID CIVIL ENGINEERING LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 19/06/2024 – present |
| Person with significant control | MEALS 2 U LTD | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | PJ MERTHYR TYDFIL LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 19/06/2024 – present |
| Person with significant control | — | — | Active | 19/06/2024 – 19/02/2019 |
| Person with significant control | PJ YTE LIMITED | — | Dissolved | 18/06/2024 – 14/09/2017 |
| Person with significant control | PJ BRIDGE LIMITED | — | Dissolved | 18/06/2024 – 14/09/2017 |
| Person with significant control | PJ DARE LIMITED | 🇬🇧Regno Unito | Proposal to strike off | 18/06/2024 – present |
| Person with significant control | MAGHERAFELT HEALTHCARE LTD | 🇬🇧Regno Unito | Active | 19/06/2024 – 23/12/2016 |
| Person with significant control | DCJ LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – 14/09/2017 |
| Person with significant control | CHIEFTAIN SOLUTIONS LIMITED | — | Dissolved | 18/06/2024 – present |
| Person with significant control | PJ MT LTD | — | Dissolved | 19/06/2024 – 14/09/2017 |
| Person with significant control | JENKINS PARTNERSHIP LIMITED | — | Dissolved | 19/06/2024 – present |
| Person with significant control | GHOULIES HAUNTED HOUSE LTD | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
| Person with significant control | O BRIEN BUSINESS SERVICES LIMITED | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
| Person with significant control | SCARY EVENTS LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | — | — | Active | 19/06/2024 – present |
| Person with significant control | O.B.BUILD CONTRACTORS LTD | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | BALLYMILLIGAN PHARMACY LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | ELLIS-O'BRIEN LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | SPANMINX LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | PEGASUS AIRCRAFT SERVICES LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | PARTNERS IN EXCELLENCE LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | C G JUNG CENTRE LIMITED | 🇬🇧Regno Unito | Active | 26/06/2024 – present |
| Person with significant control | ORION FIREARMS TRAINING LTD | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | O'BRIEN & IVANOVIC LTD | 🇬🇧Regno Unito | Active | 22/06/2024 – present |
| Person with significant control | SMARTSEAL LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | AUTOTEC GARAGE LANARKSHIRE LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | PLUMB-RITE PLUMBING & GENERAL MAINTENANCE LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Officer | O'BRIEN & IVANOVIC LTD | 🇬🇧Regno Unito | Active | 04/03/2026 – present |
19/06/2024
United Kingdom → Scotland
14/04/2024
appointed
06/04/2016
appointed