| Company | Timeline | Status | |
| Tafarn Sinc Ltd Director • Archaeologist | 31 May 2019←1 Year 10 Months→20 Apr 2021 | Dissolved | |
| Cymdeithas Tafarn Sinc Ltd Director • Consultant | 20 Oct 2017←8 Years→Current | Active | |
| The Welsh Mines Preservation Trust Director • Engineer | 17 Nov 2002←23 Years→Current | Active | |
| Historical Metallurgy Society Limited(The) Director • Engineer | 15 May 1999←3 Years→10 May 2003 | Active | |
