| Company | Timeline | Status | |
| ABH Commercial Limited Director • Director | 21 Jun 2022←3 Years→Current | Active | |
| Alan Buchan Homes Limited Director • Joiner | 7 Apr 2014←11 Years→Current | Active | |
| Alan Buchan Contractors Limited Director • Joiner | 1 Dec 2002←22 Years→Current | Active | |
