| Company | Timeline | Status | |
| Coulson Property Services Limited Director • Company Director | 31 Jul 1992←16 Years→29 Jan 2009 | Active | |
| Coulson Estates Limited Director • Director | 31 Jul 1991←34 Years→Current | Active | |
| John Coulson (Builders) Limited Director • Director | 24 Jul 1991←34 Years→Current | Active | |
