| Company | Timeline | Status | |
| Tecvac Limited Director • Engineering Director | 16 Apr 2014←4 Years→11 Apr 2019 | Active | |
| WHT Holdings Limited Director • Engineer | 1 Apr 2007←12 Years→11 Apr 2019 | Active | |
| Wallwork Cambridge Limited Director • Chief Engineer | 24 Jun 1997←21 Years→11 Apr 2019 | Active | |
| Wallwork Heat Treatment (Birmingham) Limited Director • Chief Engineer | 1 Jan 1992←27 Years→11 Apr 2019 | Active | |
| Wallwork Heat Treatment Limited Director • Chief Engineer | 1 Jan 1992←27 Years→11 Apr 2019 | Active | |
