| Company | Timeline | Status | |
| Charles Tennant & Company, Limited Director • Company Director | 2 Jun 1992←3 Years→31 Oct 1995 | Active | |
| Anderson Gibb & Wilson Limited Director • Director | 1 Jul 1989←2 Years 11 Months→3 Jun 1992 | Active | |
| John C. Walker Limited Director • Director | 1 Jul 1989←2 Years 11 Months→3 Jun 1992 | Active | |
