| Company | Timeline | Status | |
| Marbro Tunnelling Services Limited Director • Unreported | 6 Jan 2017←8 Years→Current | Active | |
| Johnston Trenchless Solutions Ltd Director • Unreported | 9 Nov 2010←15 Years→Current | Active | |
| Joseph Gallagher Group Limited Director • Unreported | 21 Jun 1999←26 Years→Current | Active | |
| N.R.C. Plant Limited Director • Unreported | 13 Jan 1997←28 Years→Current | Active | |
| Specialist Plant Associates Limited Director • Unreported | 28 Sep 1995←30 Years→Current | Active | |
| Joseph Gallagher Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
