| Company | Timeline | Status | |
| Alston Projects Limited Director • Accountant | 3 Feb 2003←9 Years→21 Jun 2012 | Active | |
| Tectorius (UK) Limited Director • Accountant | 3 Feb 2003←9 Years→21 Jun 2012 | Active | |
| Alston Holdings Limited Director • Accountant | 26 Feb 2001←11 Years→21 Jun 2012 | Active | |
| Alston Asset Management Limited Director • Director | 23 Feb 2001←11 Years→21 Jun 2012 | Dissolved | |
| Alston Pre-Applied Limited Director • Accountant | 25 Sep 1991←20 Years→21 Jun 2012 | Active | |
| Alston Pre-Applied Limited Secretary • Unreported | 25 Sep 1991←7 Years→16 Mar 1999 | Active | |
