| Company | Timeline | Status | |
| West Coast Developments Limited Director • Director | 25 May 2016←7 Years→22 Feb 2024 | Active | |
Dilwyn Roberts Penseiri/Architects Limited Director • Architect | 6 Dec 2004←11 Years→31 Mar 2016 | Dissolved | |
| Cefnllan Management Company Ltd Director • Architect | 27 Mar 2002←8 Years→15 Jan 2011 | Active | |
| Ellis Developments (Wales) Limited Director • Architect | 21 Jun 1999←6 Years→14 Oct 2005 | Active | |
| Oswalds Court (Property Management) Ltd Secretary • Unreported | 13 Mar 1998←1 Year→31 Mar 1999 | Active | |
| Dilwyn Roberts - Ymgynghorwyr Consultants Limited Director • Architect | 28 Feb 1994←21 Years→1 May 2015 | Active | |
