| Company | Timeline | Status | |
| Harthill Precision Abrasives Limited Director • Engineer | 1 Jun 2006←19 Years→Current | Active | |
| Harthill Regrinding Services Limited Director • Engineer | 1 Jun 2006←19 Years→Current | Active | |
| Harthill Developments Limited Director • Engineering | 1 Jun 2006←19 Years→Current | Active | |
