| Company | Timeline | Status | |
| Protech Sheet Metal Limited Secretary • Unreported | 20 Sep 1999←26 Years→Current | Active | |
| Protech Control Systems Limited Secretary • Unreported | 16 May 1997←28 Years→Current | Active | |
| Protech Food Systems Limited Secretary • Unreported | 16 Oct 1996←29 Years→Current | Active | |
| Protech Fabrications Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
