| Company | Timeline | Status | |
| Ofalis Limited Director • Engineer | 1 Jan 2013←8 Years→12 Jul 2021 | Dissolved | |
| Excal Limited Director • Director | 1 Nov 2008←4 Years→1 Jan 2013 | Active | |
| Hafren Limited Director • Director | 1 Oct 2007←17 Years→18 Feb 2025 | Dissolved | |
| Dyfodol Energy Limited Director • Technical Director | 8 Dec 2006←18 Years→Current | Active | |
| Egnedol UK Limited Director • Engineer | 28 Jun 2006←10 Years→16 Jan 2017 | Active | |
| Hudol Limited Director • Project Manager | 6 Apr 2004←21 Years→Current | Active | |
| Hudol Thermal Limited Secretary • Unreported | 14 Mar 2003←12 Years→29 Jul 2015 | Active | |
| Hudol Limited Secretary • Unreported | 28 Feb 2003←1 Year 2 Months→21 May 2004 | Active | |
| Zoo Brew Limited Secretary • Unreported | 21 Jan 2003←1 Year 4 Months→21 May 2004 | Active | |
| Decus Research Limited Secretary • Unreported | 21 Jan 2003←1 Year 4 Months→21 May 2004 | Active | |
