| Company | Timeline | Status | |
| Boathouse (Gigha) Ltd Director • Builder  | 22 Jul 2025←3 Months→Current  | Active  | |
| KCS (Argyll) Ltd Director • Builder  | 20 Nov 2003←21 Years→Current  | Active  | |
| S Macdonald Builders Ltd Director • Builder  | 20 May 2002←23 Years→Current  | Active  | |
