| Company | Timeline | Status | |
| D. Acheson (Pressed Brick) Limited Director • Director | 31 Dec 1999←25 Years→Current | Active | |
| D. Acheson (Navan Quarries) Limited Director • Director | 31 Dec 1999←25 Years→Current | Active | |
| D. Acheson (Limeworks) Limited Director • Director | 1 Mar 1978←47 Years→Current | Active | |
