| Company | Timeline | Status | |
| International Shipbrokers Limited Director • Accountant | 1 Apr 2007←18 Years→Current | Active | |
| Volans Shipping Limited Secretary • Unreported | 5 Oct 2004←21 Years→Current | Active | |
| International Shipbrokers Limited Secretary • Unreported | 5 Oct 2004←21 Years→Current | Active | |
| Anlon Limited Secretary • Unreported | 5 Oct 2004←21 Years→Current | Active | |
| Emg & Associates Limited Secretary • Unreported | 1 Oct 2003←10 Years→12 Nov 2013 | Dissolved | |
J. S. Hamilton Quality Services Limited Secretary • Unreported | 25 Mar 2003←14 Years→21 Mar 2017 | Dissolved | |
| Polish Coaling And Trading Company Limited Secretary • Unreported | 17 Nov 1995←29 Years→Current | Active | |
J. S. Hamilton (Holdings) Limited Secretary • Unreported | 14 Mar 1992←24 Years→5 Jul 2016 | Dissolved | |
