| Company | Timeline | Status | |
| G.I. Young & Company Limited Director • Farmer | 31 Dec 1989←1 Year 1 Month→31 Jan 1991 | Active | |
| R.D. Thomson Limited Director • Director | 31 Dec 1988←17 Years→13 May 2006 | Active | |
| George Ingram (Glasgow) Limited Director • Director | 31 Dec 1988←17 Years→13 May 2006 | Active | |
| Ingram Brothers Ltd Director • Director | 31 Dec 1988←17 Years→13 May 2006 | Active | |
| Mathison, Palmer & Company Limited Director • Director | 31 Dec 1988←17 Years→13 May 2006 | Active | |
| Milroy Chemical Company Limited (The) Director • Director | 31 Dec 1988←17 Years→13 May 2006 | Active | |
