| Company | Timeline | Status | |
| The Scottish Sporting Car Club Limited Director • Company Director | 5 Feb 2008←3 Years→4 Mar 2011 | Active | |
| W. H. Malcolm Limited Director • Road Surfacing | 1 Sep 2003←8 Years→30 Dec 2011 | Active | |
| Pirie & Company (Paisley) Limited Director • Road Surfacing Manager | 13 Jun 1989←→10 May 1989 | Active | |
