| Company | Timeline | Status | |
| Breheny Group Limited Director • Company Director | 11 Feb 2002←18 Years→19 Dec 2020 | Active | |
| J. Breheny Developments Limited Director • Director | 19 Dec 1991←29 Years→19 Dec 2020 | Active | |
| Jack Breheny Limited Director • Engineer | 19 Dec 1991←29 Years→19 Dec 2020 | Active | |
| Breheny Civil Engineering Limited Director • Director | 19 Dec 1991←29 Years→19 Dec 2020 | Active | |
