| Company | Timeline | Status | |
| Slingers 1858 Limited Director • Unreported | 1 Sep 2016←9 Years→Current | Active | |
| R. Slinger & Son Limited Director • Chairman | 14 Dec 1991←34 Years→Current | Active | |
| R. Slinger & Son Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
