| Company | Timeline | Status | |
| Bifield Properties Limited Director • Metallurgist | 7 Mar 2000←6 Years→27 Apr 2006 | Dissolved | |
| Cromet Limited Director • Metallorgist | 10 May 1991←14 Years→27 Apr 2006 | Active | |
| Crosland Metallurgical Services Limited Director • Metallurgist | 29 Apr 1991←8 Years→15 Sep 1999 | Dissolved | |
