| BERNSAND, Charlotta Sofia ACTIVE | Secretary | 21 Oct 2022 | | | | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| BYRNE, David ACTIVE | Secretary | 21 Oct 2022 | | | | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| AUER, Liam Patrick ACTIVE | Director | 06 Jan 2025 | | United Kingdom | May 1989 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| DALVAI, Anita ACTIVE | Director | 16 Jul 2026 | | United Kingdom | December 1987 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| DELA CRUZ, Jenny Lyn ACTIVE | Director | 29 Jan 2024 | | England | December 1990 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| DIVOKY, Jerry James ACTIVE | Director | 31 Jan 2023 | | Canada | August 1966 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| HIGGINS, Howard Charles ACTIVE | Director | 31 Jan 2023 | | United Kingdom | March 1953 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| PRICE, William David George ACTIVE | Director | 04 Sep 2026 | | England | September 1984 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| WATSON, Robin ACTIVE | Director | 21 Mar 2025 | | United Kingdom | February 1967 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| BAKER, Helen Alice RESIGNED | Secretary | 16 Oct 2006 | 22 Oct 2007 | | | 28 Silverstone Close, Redhill, Surrey, RH1 2HQ |
| BARNES, Megan RESIGNED | Secretary | 30 Nov 2018 | 21 Oct 2022 | | | 1-3 Strand, London, WC2N 5EH |
| COCKBURN, Emma Suzanne RESIGNED | Secretary | 19 Oct 2007 | 26 Sep 2008 | | | Redhill Cottage, Redhill, Wateringbury, Maidstone, Kent, ME18 5LA |
| DURRANT, Andrew Peter RESIGNED | Secretary | 16 Oct 2006 | 19 Oct 2007 | | | 340 Sidegate Lane, Ipswich, Suffolk, IP4 3DW |
| EVES, Richard Anthony RESIGNED | Secretary | 05 Sep 2000 | 16 Oct 2006 | | | 20 Warley Rise, Tilehurst, Reading, Berkshire, RG31 6FR |
| FORWARD, David Charles RESIGNED | Secretary | 11 Nov 2010 | 30 Nov 2013 | | | 1-3 Strand, London, WC2N 5EH |
| GRIFFIN, John Edward Henry RESIGNED | Secretary | 16 Mar 1999 | 05 Sep 2000 | | | 155 Cannon Lane, Pinner, Middlesex, HA5 1HU |
| HAGAN, Lawrence RESIGNED | Secretary | 09 Jan 2018 | 21 Oct 2022 | | | 1-3 Strand, London, WC2N 5EH |
| HIGGINS, Philip Lyndon RESIGNED | Secretary | 26 Sep 2008 | 24 Nov 2009 | | | 1-3, Strand, London, WC2N 5EH |
| JAMES, Ceri RESIGNED | Secretary | 24 Jul 2015 | 09 Jan 2018 | | | 1-3 Strand, London, WC2N 5EH |
| MORGAN, Alice Parker RESIGNED | Secretary | 01 Mar 2016 | 30 Nov 2018 | | | 1-3 Strand, London, WC2N 5EH |
| NOBLE, Mark David RESIGNED | Secretary | 22 Oct 2007 | 01 Nov 2010 | | | 1-3 Strand, London, WC2N 5EH |
| POOLE, Andrew Philip RESIGNED | Secretary | 05 Sep 2000 | 31 Oct 2002 | | | Flat 28 2 Lansdowne Drive, London, E8 3EZ |
| RAYNER, Heather Maria RESIGNED | Secretary | 24 Nov 2009 | 01 Mar 2016 | | | 1-3 Strand, London, WC2N 5EH |
| WATERLOW REGISTRARS LIMITED RESIGNED | Secretary | 02 Feb 1999 | 16 Mar 1999 | | | 6-8 Underwood Street, London, N1 7JQ |
| WATERLOW SECRETARIES LIMITED RESIGNED | Nominee Secretary | 02 Feb 1999 | 02 Feb 1999 | | | 6-8 Underwood Street, London, N1 7JQ |
| AGOUMI, Mia RESIGNED | Director | 31 Jan 2023 | 11 Mar 2024 | United Kingdom | March 1985 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| ASTLE, Edward Morrison RESIGNED | Director | 16 Oct 2003 | 30 Apr 2008 | United Kingdom | February 1954 | Bailey Farmhouse, Chatham Green, Little Waltham, Chelmsford, Essex, CM3 3LE |
| BRACKEN, Vivienne RESIGNED | Director | 27 Oct 2008 | 21 Apr 2011 | | May 1963 | 1-3 Strand, London, WC2N 5EH |
| BUTTERWORTH, Jonathan RESIGNED | Director | 21 Oct 2021 | 31 Jan 2023 | England | June 1962 | 1-3 Strand, London, WC2N 5EH |
| BUTTERWORTH, Jonathan RESIGNED | Director | 26 May 2020 | 01 May 2021 | England | June 1962 | 1-3 Strand, London, WC2N 5EH |
| BUTTERWORTH, Jonathan RESIGNED | Director | 05 Nov 2013 | 01 Dec 2017 | England | June 1962 | 1-3 Strand, London, WC2N 5EH |
| CARLTON, Jonathan Mark Guille RESIGNED | Director | 21 Apr 2011 | 05 Nov 2013 | England | July 1956 | 1-3 Strand, London, WC2N 5EH |
| COOPER, Malcolm Charles RESIGNED | Director | 17 May 2002 | 16 Oct 2003 | United Kingdom | June 1959 | 5 Dukes Avenue, Finchley, London, N3 2DE |
| DICKIE, Kylee Marie RESIGNED | Director | 31 Jan 2023 | 11 Mar 2024 | United Kingdom | June 1981 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| DUNKERLEY, Guy Allyson RESIGNED | Director | 21 Apr 2011 | 01 Dec 2014 | United Kingdom | May 1967 | 1-3 Strand, London, WC2N 5EH |
| EDWARDS, Mark RESIGNED | Director | 16 Mar 1999 | 05 Sep 2000 | | February 1956 | Beechanger 18 Angel Meadows, Odiham, Hampshire, RG29 1AR |
| EVES, Richard Anthony RESIGNED | Director | 05 Sep 2000 | 17 May 2002 | | March 1950 | 20 Warley Rise, Tilehurst, Reading, Berkshire, RG31 6FR |
| FARKAS, David RESIGNED | Director | 21 Oct 2024 | 28 Feb 2025 | England | October 1975 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| FENN, Jonathan Charles RESIGNED | Director | 13 Jul 2018 | 31 Jul 2021 | England | April 1962 | 1-3 Strand, London, WC2N 5EH |
| FOSTER, Alan Peter RESIGNED | Director | 30 Apr 2008 | 31 Dec 2010 | United Kingdom | March 1971 | 1-3 Strand, London, WC2N 5EH |
| GRIFFIN, John Edward Henry RESIGNED | Director | 16 Mar 1999 | 05 Sep 2000 | | January 1949 | 155 Cannon Lane, Pinner, Middlesex, HA5 1HU |
| HALLAM-JONES, Emily Jane RESIGNED | Director | 01 May 2021 | 21 Oct 2022 | United Kingdom | August 1982 | 1-3 Strand, London, WC2N 5EH |
| HOOPER, Nick RESIGNED | Director | 21 Oct 2021 | 31 Jan 2023 | United Kingdom | December 1975 | 1-3 Strand, London, WC2N 5EH |
| HOOPER, Nick RESIGNED | Director | 05 Dec 2014 | 01 May 2021 | United Kingdom | December 1975 | 1-3 Strand, London, WC2N 5EH |
| HUMPHREYS, Stuart Calvin RESIGNED | Director | 01 Feb 2014 | 31 Dec 2019 | England | February 1963 | 1-3 Strand, London, WC2N 5EH |
| HUMPHRIES-NEW, Natalie RESIGNED | Director | 31 Jan 2023 | 26 Sep 2024 | England | February 1975 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| JORDAN, Mark, Mr RESIGNED | Director | 30 Apr 2008 | 31 Jul 2009 | United Kingdom | January 1960 | 21, Yew Tree Lane, Solihull, West Midlands, B91 2PA, United Kingdom |
| KEELING, Timothy RESIGNED | Director | 04 Mar 2023 | 30 Nov 2023 | Canada | September 1985 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| KELLY, Rhian Catriona RESIGNED | Director | 31 Jan 2023 | 11 Mar 2024 | United Kingdom | December 1976 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| LONG, Maxine Yvette RESIGNED | Director | 19 Apr 2018 | 31 Jan 2023 | England | November 1969 | 1-3 Strand, London, WC2N 5EH |
| MATHIESON, Mark William RESIGNED | Director | 31 Jan 2023 | 15 May 2026 | England | September 1966 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| MEDALOVA, Nicola RESIGNED | Director | 24 Nov 2014 | 13 Jul 2018 | United Kingdom | November 1975 | 1-3 Strand, London, WC2N 5EH |
| PHAM, Nghi Do Truong RESIGNED | Director | 04 Mar 2023 | 21 Jul 2023 | Canada | September 1977 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| POOLE, Andrew Philip RESIGNED | Director | 05 Sep 2000 | 17 May 2002 | United Kingdom | September 1959 | Flat 28 2 Lansdowne Drive, London, E8 3EZ |
| PRICE, William David George RESIGNED | Director | 31 Jan 2023 | 15 May 2026 | England | September 1984 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| PULLEN, Neil James RESIGNED | Director | 15 Jul 2011 | 26 Sep 2014 | United Kingdom | April 1969 | 1-3 Strand, London, WC2N 5EH |
| QURESHI, Abdul Moiz RESIGNED | Director | 21 Jul 2023 | 16 Jul 2026 | England | August 1986 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| RYAN, Linda Claire RESIGNED | Director | 14 Jul 2006 | 02 Jun 2008 | England | May 1963 | Feldborough House, The Green, Broadwell, Warwickshire, CV23 8HD |
| SELLARS, Melissa Jane RESIGNED | Director | 16 Oct 2003 | 14 Jul 2006 | United Kingdom | December 1969 | Longridge, 11 Vine Avenue, Sevenoaks, Kent, TN13 3AH |
| SHOESMITH, Colin Michael RESIGNED | Director | 17 May 2002 | 31 Mar 2008 | United Kingdom | December 1957 | 68 Binswood Avenue, Leamington Spa, Warwickshire, CV32 5RY |
| SYSON, Edward Charles RESIGNED | Director | 01 Nov 2010 | 30 Jun 2011 | England | June 1970 | 1, - 3 Strand, London, WC2N 5EH, United Kingdom |
| TSIRIMPA, Aikaterini RESIGNED | Director | 31 Jan 2023 | 26 Sep 2024 | United Kingdom | April 1981 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| WEBB, Lincoln Hillier RESIGNED | Director | 31 Jan 2023 | 21 Oct 2024 | Canada | March 1971 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| WESTERMAN, Daniel Francis RESIGNED | Director | 01 Dec 2017 | 26 May 2020 | United Kingdom | October 1978 | 1-3 Strand, London, WC2N 5EH |
| WILSON, Benjamin Hollis RESIGNED | Director | 31 Jan 2023 | 26 Sep 2024 | United Kingdom | August 1974 | National Grid House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA |
| WATERLOW DOMICILIARY LIMITED RESIGNED | Director | 02 Feb 1999 | 16 Mar 1999 | | | 6-8 Underwood Street, London, N1 7JQ |
| WATERLOW NOMINEES LIMITED RESIGNED | Nominee Director | 02 Feb 1999 | 02 Feb 1999 | | | 6-8 Underwood Street, London, N1 7JQ |