| Company | Timeline | Status | |
| Techtest Limited Director • Company Director | 23 Nov 1991←12 Years→15 Jun 2004 | Active | |
| Specmat Limited Director • Company Director | 23 Nov 1991←12 Years→15 Jun 2004 | Active | |
H.R. Smith (L.M. Systems) Limited Director • Company Director | 23 Nov 1991←12 Years→15 Jun 2004 | Dissolved | |
| H.R. Smith (Technical Developments) Limited Director • Company Director | 23 Nov 1991←12 Years→15 Jun 2004 | Active | |
