| Company | Timeline | Status | |
| Shellfish Trading Company Ltd Director • Company Director | 23 Jan 2023←1 Year 2 Months→9 Apr 2024 | Dissolved | |
| Keltic Seafare (Scotland) Limited Director • Unreported | 26 Apr 2016←9 Years→Current | Active | |
| Coquet Island Shellfish Limited Director • Unreported | 15 Apr 2016←9 Years→Current | Active | |
| D.R. Collin (Fish) Limited Director • Company Director | 8 Jan 2016←9 Years→Current | Active | |
| Boat Investments Limited Director • Company Director | 11 Sep 2015←10 Years→Current | Active | |
| Sea Harvest Scotland Ltd Director • Unreported | 11 Sep 2015←10 Years→Current | Active | |
| D.R. Collin Scotland Limited Director • Unreported | 11 Sep 2015←10 Years→Current | Active | |
| D. R. Collin & Son Ltd Director • Unreported | 21 Oct 2011←14 Years→Current | Active | |
