| Company | Timeline | Status | |
| Mercury Investments (UK) Limited Director • Director | 20 Oct 1994←18 Years→3 Nov 2012 | Active | |
| Samuel Skelly Limited Director • Director | 28 Sep 1991←21 Years→3 Nov 2012 | Active | |
| Mast Diagnostics Limited Director • Director | 19 May 1991←21 Years→3 Nov 2012 | Active | |
| Mast Group Limited Director • Director | 18 May 1991←21 Years→3 Nov 2012 | Active | |
| Mast International Limited Director • Director | 15 May 1991←21 Years→3 Nov 2012 | Active | |
| Samuel Skelly Limited Director • Unreported | 1 Jan 1970←42 Years→3 Nov 2012 | Active | |
