| Company | Timeline | Status | |
Allen Limited Secretary • Co Secretary | 9 May 2002←15 Years→5 Sep 2017 | Dissolved | |
| Kier Ewan Limited Director • Civil Engineer | 29 Oct 2001←5 Years→15 Nov 2006 | Active | |
| Kier Parkman Ewan Associates Limited Director • Civil Engineer | 29 Oct 2001←5 Years→15 Nov 2006 | Active | |
Buildcert Limited Director • Manager/civil Engineer | 2 Oct 1998←1 Year 6 Months→31 Mar 2000 | Dissolved | |
| WRC Evaluation And Testing Centre Limited Director • Civil Engineer | 7 May 1996←3 Years→19 Jul 1999 | Dissolved | |
| The Pipeline Industries Guild Limited Director • Civil Engineer | 17 Apr 1996←12 Months→16 Apr 1997 | Active | |
