| Company | Timeline | Status | |
| The Ravensdowne Management Company Limited Director • Director | 31 Aug 2021←4 Years→Current | Active | |
| Ceteris (Scotland) Limited Director • Director | 21 May 1991←7 Years→17 Dec 1998 | Active | |
| Thom Micro Systems Limited Director • Computer Manager | 30 Nov 1988←26 Years→13 Aug 2015 | Active | |
