| Company | Timeline | Status | |
| Grain LNG Limited Director • Unreported | 23 May 2008←1 Month→7 Jul 2008 | Active | |
| National Gas Transmission Plc Director • Financial Controller | 27 Jun 2007←1 Year→7 Jul 2008 | Active | |
| National Grid Interconnectors Limited Director • Financial Controller | 14 Aug 2006←1 Year 10 Months→7 Jul 2008 | Active | |
NG Leasing Limited Director • Financial Controller | 8 May 2006←2 Years 2 Months→7 Jul 2008 | Dissolved | |
| National Grid Electricity Transmission Plc Director • Financial Controller | 24 Nov 2004←3 Years→7 Jul 2008 | Active | |
| National Grid Jersey Investments Limited Director • Financial Controller | 6 Oct 2004←4 Months→11 Feb 2005 | Converted/Closed | |
| NGT Two Limited Director • Financial Controller | 17 Sep 2004←4 Months→1 Feb 2005 | Dissolved | |
NGT Three Director • Financial Controller | 17 Sep 2004←4 Months→1 Feb 2005 | Dissolved | |
| Lattice Group Limited Director • Financial Controller | 6 Sep 2004←4 Months→1 Feb 2005 | Active | |
National Grid (Us) Investments Director • Financial Controller | 19 Jul 2004←6 Months→1 Feb 2005 | Dissolved | |
