| Company | Timeline | Status | |
| Birmingham District Energy Company Limited Director • Director | 1 Jul 2009←10 Months→30 Apr 2010 | Active | |
| Bring Energy Services Limited Director • Director | 1 Jul 2009←10 Months→30 Apr 2010 | Active | |
| Southampton Geothermal Heating Company Limited(The) Director • Director | 1 Jul 2008←1 Year 10 Months→30 Apr 2010 | Active | |
| Gower Street Heat And Power Limited Director • Company Director | 13 Oct 2000←3 Years→22 Nov 2003 | Dissolved | |
| Bloomsbury Heat & Power Limited Director • Company Director | 28 Oct 1998←5 Years→22 Nov 2003 | Active | |
| Industrielle De Chauffage Enterprise United Kingdom Limited Director • Company Director | 11 Nov 1997←6 Years→22 Nov 2003 | Dissolved | |
Citigen Holdings Limited Director • General Manger | 27 May 1993←2 Years 9 Months→8 Mar 1996 | Dissolved | |
| Citigen (London) Limited Director • General Manager | 1 Feb 1993←3 Years→8 Mar 1996 | Active | |
| Bring Energy Limited Director • Director | 29 Dec 1991←11 Years→22 Nov 2003 | Active | |
| Bring Energy Concessions Limited Director • General Manager | 22 Aug 1991←18 Years→30 Apr 2010 | Active | |
