| Company | Timeline | Status | |
| Primekss UK Ltd Director • Civil Engineer | 28 Sep 2020←5 Years→Current | Active | |
| D A Martin Associates Ltd Director • Director | 1 Sep 2010←15 Years→Current | Active | |
| Silidur Ltd Secretary • Director | 15 Jan 2008←17 Years→Current | Liquidation | |
| Silidur Ltd Director • Engineer | 1 Aug 2006←19 Years→Current | Liquidation | |
| D A Martin Associates Ltd Director • Civil Engineer | 7 Jul 2006←3 Years→24 Jul 2009 | Active | |
Silidur (UK) Ltd Director • Civil Engineer | 24 Dec 2003←11 Years→24 Oct 2015 | Dissolved | |
| Twintec Limited Director • Civil Engineer | 13 Feb 1998←3 Years→8 Oct 2001 | Liquidation | |
