| Company | Timeline | Status | |
| Ecowin Ltd Director • Self Employed | 13 Apr 2012←6 Years→25 Aug 2018 | Active | |
Passive House Centre Limited Director • Director | 4 Feb 2010←5 Years→6 Feb 2015 | Dissolved | |
| Sustainable Homes Scotland Ltd Director • Director | 20 Sep 2007←1 Year→1 Oct 2008 | Active | |
