| Company | Timeline | Status | |
| Interlock Metal Products Limited Director • Unreported | 23 Apr 1997←28 Years→Current | Active | |
| Interlock Flexible Products Limited Director • Unreported | 27 Mar 1995←30 Years→Current | Active | |
| Interlock Ductwork Limited Director • Director | 15 Mar 1991←4 Years→1 Apr 1995 | Dissolved | |
| C.C.C.P. Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
