| Company | Timeline | Status | |
| SGN Contracting Limited Secretary • Unreported | 15 Sep 2005←3 Years→29 Jan 2009 | Active | |
| Southern Gas Networks Plc Secretary • Unreported | 1 Jun 2005←3 Years→29 Jan 2009 | Active | |
| Scotland Gas Networks Plc Secretary • Unreported | 1 Jun 2005←3 Years→29 Jan 2009 | Active | |
| Scotia Gas Networks Limited Secretary • Unreported | 10 May 2005←3 Years→29 Jan 2009 | Active | |
| Ovo (S) Electricity Limited Secretary • Unreported | 18 Apr 2005←3 Years→12 Feb 2009 | Active | |
| Ovo (S) Gas Limited Secretary • Unreported | 18 Apr 2005←3 Years→12 Feb 2009 | Active | |
Swalec Gas Limited Secretary • Unreported | 18 Apr 2005←3 Years→12 Feb 2009 | Dissolved | |
| Sse Stock Limited Secretary • Unreported | 22 Mar 2005←3 Years→12 Feb 2009 | Active | |
| Sse Energy Supply Limited Secretary • Unreported | 26 Apr 2004←4 Years→12 Feb 2009 | Active | |
| Sse Medway Operations Limited Secretary • Unreported | 7 Nov 2003←5 Years→13 Feb 2009 | Active | |
