| Company | Timeline | Status | |
| Castle Composites 2016 Limited Director • Director | 16 Mar 2016←9 Years→Current | Active | |
| Castle Composites Limited Secretary • Construction Consultant | 11 Mar 1998←1 Year 11 Months→28 Feb 2000 | Active | |
| Castle Composites Limited Director • Construction Consultant | 11 Mar 1998←19 Years→9 Feb 2018 | Active | |
Sneddon Scotland Limited Director • Consultant | 21 Apr 1997←21 Years→25 Sep 2018 | Dissolved | |
