| Company | Timeline | Status | |
| CPF Commercial Limited Director • Unreported | 28 Nov 2014←11 Years→Current | Active | |
| Merchants Transport Limited Director • Director | 19 Dec 2007←18 Years→Current | Active | |
| Stressline Engineering Limited Director • Director | 29 Jun 2005←20 Years→Current | Active | |
| Stressline Holdings Limited Director • Company Director | 1 Jan 1998←28 Years→Current | Active | |
| Stressline (Patents) Limited Director • Unreported | 1 Jan 1997←29 Years→Current | Active | |
| Stressline Limited Director • Unreported | 1 Jan 1997←29 Years→Current | Active | |
| John W.Hartley,Limited Director • Unreported | 1 Jan 1997←29 Years→Current | Active | |
