| Company | Timeline | Status | |
| Boathouse (Gigha) Ltd Director • Builder | 22 Jul 2025←6 Months→Current | Active | |
| KCS (Argyll) Ltd Director • Unreported | 20 Nov 2003←22 Years→Current | Active | |
| S Macdonald Builders Ltd Director • Builder | 20 May 2002←23 Years→Current | Active | |
