| Company | Timeline | Status | |
| Rushden Grinding Co. Limited Director • Accountant | 23 May 2008←16 Years→28 Oct 2024 | Active | |
| The Martins Management Company Limited Director • Accountant | 17 Sep 2001←5 Years→26 Jun 2007 | Active | |
| Rushden Grinding Co. Limited Secretary • Unreported | 8 Sep 2000←20 Years→29 Oct 2020 | Active | |
| Ni - Form Limited Secretary • Unreported | 3 Nov 1991←29 Years→29 Oct 2020 | Active | |
| Impact Diamond Tools Limited Director • Accountant | 26 Oct 1991←9 Years→2 Aug 2001 | Active | |
| Diaforce Limited Director • Accountant | 26 Oct 1991←33 Years→28 Oct 2024 | Active | |
| Diagrit Electrometallics Limited Director • Accountant | 26 Oct 1991←33 Years→28 Oct 2024 | Active | |
| Kendia (Diamond Products) Limited Director • Accountant | 26 Oct 1991←33 Years→28 Oct 2024 | Active | |
| D.K. Holdings Limited Director • Accountant | 26 Oct 1991←33 Years→17 Oct 2024 | Active | |
| Elite Circuits Limited Secretary • Unreported | 28 Apr 1991←3 Years→17 Oct 1994 | Dissolved | |
