| Company | Timeline | Status | |
| W.N. Lindsay Limited Director • Director | 30 Jan 2021←4 Years→Current | Active | |
| McCreath Simpson Limited Director • Director | 18 Aug 2011←14 Years→Current | Active | |
| J.P. Simpson & Co. (Export) Limited Director • Director | 18 Aug 2011←14 Years→Current | Active | |
| McCreath Simpson & Prentice Limited Director • Director | 18 Aug 2011←14 Years→Current | Active | |
| J.P. Simpson And Company (Alnwick) Limited Director • Director | 18 Aug 2011←14 Years→Current | Active | |
| John Guthrie Limited Director • Director | 12 Aug 2011←14 Years→Current | Active | |
| Mistley Waterworks Limited Director • Director | 18 Aug 2006←1 Year 10 Months→2 Jul 2008 | Active | |
| McCreath Simpson Limited Secretary • Finance Director | 4 Aug 2005←20 Years→Current | Active | |
| J.P. Simpson & Co. (Export) Limited Secretary • Finance Director | 4 Aug 2005←20 Years→Current | Active | |
| Simpsons Malt Limited Director • Director | 4 Aug 2005←20 Years→Current | Active | |
