| Company | Timeline | Status | |
| DMCO Holding Limited Director • Engineer | 30 Apr 1997←3 Years→29 Jun 2000 | Active | |
| DMCO UK Holding Limited Director • Engineer | 2 Dec 1996←3 Years→29 Jun 2000 | Active | |
| Spectra-Tek International Limited Director • Sales Director | 26 Apr 1992←8 Years→29 Jun 2000 | Dissolved | |
| Greenfield (UK) Limited Director • Engineer | 9 Feb 1992←8 Years→29 Jun 2000 | Dissolved | |
| Spectra-Tek UK Limited Director • Sales Director | 23 Jan 1992←8 Years→29 Jun 2000 | Active | |
| Ambrit Limited Director • Director | 27 Jun 1991←28 Years→29 Aug 2019 | Active | |
