| Company | Timeline | Status | |
| Blue Route (Scotland) Limited Director • Director | 17 Aug 2015←6 Years→11 Jan 2022 | Dissolved | |
| DH Peebles Limited Director • Director | 14 Jul 2009←13 Years→26 Jul 2022 | Dissolved | |
| David Harrison Property Limited Director • Finance Director | 6 Jul 2009←11 Years→5 Jan 2021 | Dissolved | |
| David Harrison Limited Director • Unreported | 1 May 2003←22 Years→Current | Active | |
