| Company | Timeline | Status | |
| Constant Air Systems Limited Director • Group Finance Director | 1 Feb 2020←5 Years→Current | Active | |
| Emtec Products Limited Director • Unreported | 1 Jan 2019←6 Years→Current | Active | |
Thame Energy Systems Limited Director • Finance Director | 7 Jan 2016←2 Years 1 Month→21 Feb 2018 | Dissolved | |
Britannia Heatex Limited Director • Finance Director | 7 Jan 2016←2 Years 1 Month→21 Feb 2018 | Dissolved | |
| The Pump Centre Limited Director • Finance Director | 7 Jan 2016←9 Months→17 Oct 2016 | Dissolved | |
Urquhart Engineering Company Limited Director • Finance Director | 7 Jan 2016←2 Years 1 Month→21 Feb 2018 | Dissolved | |
Thame Energy Systems Limited Director • Director | 9 Jun 2011←9 Months→30 Mar 2012 | Dissolved | |
Britannia Heatex Limited Director • Director | 9 Jun 2011←1 Year→21 Jun 2012 | Dissolved | |
Britannia Heatex Limited Secretary • Unreported | 9 Jun 2011←2 Years 5 Months→14 Nov 2013 | Dissolved | |
| Sterling Thermal Technology Limited Director • Director | 1 Jan 2007←11 Years→13 Apr 2018 | Active | |
