| Company | Timeline | Status | |
| Martin Buchanan Developments Limited Director • Director | 19 Mar 2015←5 Years→5 Jan 2021 | Dissolved | |
Coldwell Developments (UK) Ltd Director • Director | 11 Nov 2009←4 Years→14 Oct 2014 | Dissolved | |
| Martin Buchanan Plumbing & Heating Services Limited Director • Unreported | 26 Nov 2003←21 Years→Current | Active | |
