| Company | Timeline | Status | |
| M J O'Donnell Holdings Limited Director • Unreported | 26 Oct 2016←9 Years→Current | Active | |
| O'Donnell & Sons Properties Limited Director • Unreported | 15 Sep 2015←10 Years→Current | Active | |
| O'Donnell Civil Engineers (UK) Ltd Director • Civil Engineer | 2 Sep 2002←22 Years→1 Jul 2025 | Dissolved | |
