| Company | Timeline | Status | |
| Slingers 1858 Limited Director • Unreported | 7 Dec 2011←14 Years→Current | Active | |
| R. Slinger & Son Limited Director • Unreported | 3 Jul 2000←25 Years→Current | Active | |
| R. Slinger & Son Limited Director • Systems Co-ordinator | 30 Mar 1995←4 Years→26 Nov 1999 | Active | |
