| Company | Timeline | Status | |
| QM Systems Limited Director • Engineer | 1 Aug 1993←18 Years→6 Oct 2011 | In Administration | |
| Addept Solutions Limited Director • Software Consultant | 7 Jun 1991←1 Year 9 Months→31 Mar 1993 | Active | |
| Addept Computer Services Limited Director • Software Consultant | 9 Mar 1991←2 Years→31 Mar 1993 | Active | |
