| Company | Timeline | Status | |
| A B Ductwork Services Limited Director • Unreported | 19 Mar 2020←5 Years→Current | Active | |
| Birmingham Ductwork Services Limited Director • Director | 5 May 2016←3 Years→3 Mar 2020 | Active | |
Birmingham Ductwork Services Limited Director • Director | 29 Jan 2013←2 Years 4 Months→23 Jun 2015 | Dissolved | |
| Birmingham Ductwork Supply & Installation Limited Director • Director | 23 Sep 2010←10 Years→15 Jun 2021 | Dissolved | |
Cowen Installation Limited Director • Engineer | 5 Nov 2005←8 Years→10 Jun 2014 | Dissolved | |
Cowen Installation Limited Secretary • Engineer | 25 Jun 2001←4 Months→24 Oct 2001 | Dissolved | |
Cowen Installation Limited Director • Air Conditioning Engineer | 25 Oct 2000←8 Months→25 Jun 2001 | Dissolved | |
