| Company | Timeline | Status | |
| Stone Marine Shipcare Limited Director • Company Director | 21 Dec 2000←2 Years 7 Months→31 Jul 2003 | Active | |
| Stone Marine Services Limited Director • Director | 24 Dec 1999←3 Years→21 Feb 2003 | Active | |
| Stone Marine Propulsion Limited Director • Managing Director | 1 Aug 1991←18 Years→20 Nov 2009 | Active | |
