| Company | Timeline | Status | |
| Graingers Investments Limited Director • Unreported | 24 Dec 2014←10 Years→Current | Active | |
| Isaac H. Grainger & Son Limited Director • Unreported | 1 Mar 1998←27 Years→Current | Active | |
| Darkbridge Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Darkbridge Limited Secretary • Unreported | 1 Jan 1970←55 Years→Current | Active | |
