| Company | Timeline | Status | |
| Portland Fuel Holdings Limited Director • Director | 2 Sep 2024←1 Year 1 Month→Current | Active | |
Renewables Roadshow Limited Director • Company Director | 3 Apr 2014←9 Months→30 Dec 2014 | Dissolved | |
| Portland Analytics Limited Director • Businessman | 1 Mar 2013←12 Years→Current | Active | |
| Portland Cso Trading Limited Director • Director | 25 May 2012←13 Years→Current | Active | |
| The Fuel Trading Company Ltd Director • Director | 20 Apr 2009←16 Years→Current | Active | |
| The Fuel Trading Company Ltd Director • Director | 20 Apr 2009←15 Years→10 Oct 2024 | Active | |
| Eleven Worldwide Limited Director • Director | 5 Aug 1998←27 Years→Current | Active | |
| Eleven Worldwide Limited Secretary • Unreported | 5 Aug 1998←9 Years→19 May 2008 | Active | |
| 24 Ainger Road London NW3 Limited Director • Marketing Executive | 3 Aug 1995←12 Years→13 Nov 2007 | Active | |
Ashley & Dumville Publishing Limited Director • Director | 21 Nov 1991←27 Years→27 Nov 2018 | Dissolved | |
