| 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←9 Years→Current | 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 And Company Secretary | 1 Oct 2012←7 Years→23 Nov 2019 | Dissolved | |
Cowen Installation Limited Director • None | 25 Jun 2001←6 Years→14 Mar 2008 | Dissolved | |
Cowen Installation Limited Secretary • Unreported | 25 Oct 2000←8 Months→25 Jun 2001 | Dissolved | |
