| Company | Timeline | Status | |
| The Charles Rennie Mackintosh Society Director • Director | 27 Jul 2006←5 Years→9 Jun 2012 | Active | |
| Minard Development Company Limited Director • Co Dir | 27 Sep 1995←24 Years→23 Apr 2020 | Active | |
| Blanefield Holdings Limited Director • Director | 27 Sep 1995←19 Years→17 Jul 2015 | Active | |
| Lochalsh Estates Limited Director • Company Director | 20 Jan 1993←11 Years→8 Apr 2004 | Active | |
| Sco-Fro Group Limited Director • Director | 31 Dec 1989←30 Years→23 Apr 2020 | Active | |
| Lismor Investments (Glasgow) Limited Director • Company Director | 8 Mar 1989←31 Years→23 Apr 2020 | Active | |
| Heather Spring Water Limited Director • Director | 31 Dec 1988←31 Years→23 Apr 2020 | Dissolved | |
| Interlock Investments Limited Director • Director | 31 Dec 1988←31 Years→23 Apr 2020 | Active | |
