| Company | Timeline | Status | |
| Christopher Safety Products Limited Director • Manager | 19 Nov 1991←34 Years→Current | Active | |
| G. S. Christopher & Co. Limited Director • Manager | 19 Nov 1991←34 Years→Current | Active | |
| Wadsworth Security Products Limited Director • Manager | 19 Nov 1991←34 Years→Current | Active | |
| Christopher Safety Products Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
| G. S. Christopher & Co. Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
| Wadsworth Security Products Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
