| Company | Timeline | Status | |
| J.O'Brien Roofing Ltd Director • Md | 1 Jan 2025←10 Months→Current | Active | |
| 0'Brien's Maintenance Limited Director • Manager | 10 Aug 2022←3 Years→Current | Active | |
| O'Brien Roofing Limited Director • Director | 16 Oct 2006←7 Years→12 Aug 2014 | Dissolved | |
