| Company | Timeline | Status | |
| Bysc Limited Director • Art Dealer | 11 Feb 2016←9 Years→Current | Active | |
| Martin Summers Fine Art Limited Director • Fine Art Dealer | 28 Feb 2002←20 Years→21 Feb 2023 | Dissolved | |
| The Dunkirk Ship Company Limited Director • Dealer In Fine Art | 18 Feb 1999←16 Years→1 Sep 2015 | Active | |
| The Dunkirk Little Ships Restoration Trust Director • Dealer In Fine Art | 11 Jan 1993←22 Years→3 Sep 2015 | Active | |
