| Company | Timeline | Status | |
| Grampian Kart Club Director • Director | 23 Nov 2003←12 Months→17 Nov 2004 | Active | |
| Harbour Haulage Limited Director • Haulage Contractor | 14 Jan 2000←25 Years→Current | Active | |
| R & J Simpson Limited Director • Haulage Contractor | 14 Jan 2000←25 Years→Current | Active | |
| R J S (Scotland) Limited Director • Haulage Contractor | 4 Apr 1997←28 Years→Current | Active | |
