| Company | Timeline | Status | |
| Walker Sealants Limited Director • Unreported | 27 Jul 2000←25 Years→Current | Active | |
| Walker Minerals (Bradwell) Ltd Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Walker Minerals Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Portaway Minerals (Elton) Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
