| Company | Timeline | Status | |
| Dargan Court Ltd Director • Civil Engineer | 2 Aug 1993←10 Years→3 Jun 2004 | Active | |
| Lowry Piling Limited Director • Civil Engineer | 26 Jul 1985←33 Years→21 Jun 2019 | Active | |
| Fortwilliam Estates Limited Director • Civil Engineer | 19 Apr 1983←36 Years→21 Jun 2019 | Active | |
| T.T.D. Lowry Limited Director • Civil Engineer | 18 Jun 1980←39 Years→21 Jun 2019 | Active | |
