| Company | Timeline | Status | |
| Isoplan UK Ltd Director • Unreported | 6 Sep 1990←1 Year 8 Months→26 May 1992 | Active | |
| Isoplan UK Ltd Secretary • Chartered Surveyor | 6 Sep 1990←1 Year 8 Months→26 May 1992 | Active | |
| Willowacre Trust Director • Chartered Surveyor | 26 Oct 1989←8 Years→28 Oct 1997 | Active | |
Doig & Smith Property Company Limited Director • Chartered Surveyor | 28 Jun 1989←2 Years 8 Months→18 Mar 1992 | Dissolved | |
Doig & Smith Property Company Limited Secretary • Unreported | 28 Jun 1989←2 Years 8 Months→18 Mar 1992 | Dissolved | |
| St. Columba's School Limited Director • Chartered Quantity Surveyor | 29 Dec 1988←1 Year 11 Months→13 Dec 1990 | Active | |
| The Glasgow Academicals War Memorial Trust Director • Chartered Surveyor | 8 Dec 1988←2 Years 6 Months→4 Jul 1991 | Active | |
