| Company | Timeline | Status | |
BPC Titanium Limited Director • Metallurgist | 1 Oct 2012←4 Years→27 Dec 2016 | Dissolved | |
| Perryman Europe Ltd Director • Metallurgist | 9 Jan 2003←13 Years→29 Feb 2016 | Active | |
Hta (UK) Limited Director • Metallurgist | 24 Jan 1996←7 Years→30 Sep 2003 | Dissolved | |
| Hi-Tech Alloys (UK) Limited Director • Metallurgical Consultant | 5 Jul 1992←11 Years→30 Sep 2003 | Dissolved | |
