| BYSTROM, Caroline Louise ACTIVE | Secretary | 11 Aug 2026 | | | | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| CLEMENT, Lisa Jane ACTIVE | Director | 11 Jan 2023 | | United Kingdom | September 1967 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| FARMER, Andrew Robert ACTIVE | Director | 01 Aug 2015 | | England | December 1969 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| HALSALL, John ACTIVE | Director | 23 Jul 2026 | | England | April 1966 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| HUSSEY, Celia Pronto ACTIVE | Director | 01 Jun 2018 | | England | May 1973 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| MCARDLE, Mark Gerard Denis ACTIVE | Director | 09 Feb 2022 | | United Kingdom | June 1987 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| MCKINSTRY, William Francis Michael ACTIVE | Director | 15 Aug 2024 | | United Kingdom | October 1965 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SHERIDAN, Caroline Jane ACTIVE | Director | 12 Feb 2025 | | England | January 1975 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| BUCK, Steven John RESIGNED | Secretary | 25 May 2001 | 27 May 2002 | | | 54 Dutchells Way, Eastbourne, East Sussex, BN22 0XF |
| BURNS, Noel James RESIGNED | Secretary | 27 May 2002 | 30 Sep 2008 | | | The Handsel 6 Northcliffe Close, Worcester Park, Surrey, KT4 7DS |
| COLE, Nigel George Allcard RESIGNED | Secretary | | 31 Dec 1997 | | | 117 Victoria Drive, Eastbourne, East Sussex, BN20 8LE |
| ROBERTSON, William James RESIGNED | Secretary | 01 Jan 1998 | 25 May 2001 | | | Woodside Cinder Hill, North Chailey, Lewes, East Sussex, BN8 4HP |
| TRUILLET, Nicolas Alexandre Desire RESIGNED | Secretary | 01 Oct 2008 | 10 Aug 2026 | | | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| AGOSTINI, Pascal RESIGNED | Director | 27 Sep 2001 | 01 Oct 2003 | | September 1949 | La Louque, Carraire Du Boulard, 13480, Cabries, France |
| ANTOLIK, Peter Szymon RESIGNED | Director | 01 Apr 2004 | 02 Oct 2006 | United Kingdom | December 1968 | 81 Regina Road, London, N4 3PT |
| BAGGS, Martin Wayne RESIGNED | Director | 01 Jun 2006 | 02 Oct 2006 | England | February 1965 | 51 Southwick Street, Southwick, East Sussex, BN42 4TH |
| BARNES, John Anthony RESIGNED | Director | 28 Jan 2016 | 12 Feb 2025 | United Kingdom | September 1954 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| BARNHOORN, Hendrikus Theodorus Johannes RESIGNED | Director | 01 Aug 1993 | 29 Mar 2000 | | October 1946 | 3 Walnut Tree Walk, Eastbourne, East Sussex, BN20 9BP |
| BARON, Sondra Jo RESIGNED | Director | 01 Oct 2003 | 01 Apr 2004 | | October 1965 | Garden Flat, 104 Clarendon Road, London, W11 2AR |
| BHATIA, Kanishk RESIGNED | Director | 18 Oct 2011 | 19 Nov 2013 | United Kingdom | December 1982 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| BOX, Stephen John RESIGNED | Director | 26 Nov 2003 | 17 Nov 2006 | United Kingdom | September 1950 | Great Dewlands, Dewlands Hill, Rotherfield, East Sussex, TN6 3RU |
| BUTLER, Paul RESIGNED | Director | 02 Oct 2006 | 31 Jul 2020 | England | March 1961 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| COTE, Patrick RESIGNED | Director | 27 Feb 2014 | 30 Oct 2014 | France | September 1972 | South East Water, Rocfort Road, Snodland, Kent, ME6 5AH, England |
| CRAIG, James Stuart RESIGNED | Director | 01 Oct 2003 | 03 Oct 2005 | | August 1965 | C/O Macquarie Bank, Level 25 City Point, No.1 Ropemaker Street, London, EC2Y 9HD |
| CUMBERLEGE CBE DL, Julia Frances, Baroness RESIGNED | Director | 06 Dec 2006 | 18 Dec 2007 | United Kingdom | January 1943 | Snells Cottage, The Green, Newick, East Sussex, BN8 4LA |
| DENERY, Philippe Gilbert RESIGNED | Director | 28 Jun 2000 | 27 Sep 2001 | | September 1957 | 8 Rue Desaix, Paris, 75015, FOREIGN, France |
| DEVLIN, Margaret Patricia RESIGNED | Director | 24 Mar 1999 | 26 May 2006 | | March 1962 | Stable Lodge, Boreham St., Hailsham, East Sussex, BN27 4SF |
| DIXON, Peter Vincent RESIGNED | Director | 27 Feb 2014 | 27 Apr 2017 | United Kingdom | May 1960 | Rocfort Road, Snodland, Kent, ME6 5AH, England |
| DREW, Rachel Amelia RESIGNED | Director | 06 Dec 2019 | 09 Feb 2022 | United Kingdom | June 1976 | Hrl Morrison & Co (Uk) Limited, Nova North, Level 10, 11 Bressenden Pl, London, SW1E 5BY, United Kingdom |
| DYER, Peter, Dr RESIGNED | Director | 05 Feb 2004 | 02 Oct 2006 | Uk | November 1941 | 14 Crofton Avenue, Chiswick, London, W4 3EW |
| FORTIN, Olivier Georges Xavier RESIGNED | Director | 30 Oct 2014 | 08 Feb 2017 | France | March 1974 | 30, Avenue Georges V, Paris, 75008, France |
| GABOREAU, Claude Jean RESIGNED | Director | 27 Jan 1995 | 31 Oct 1998 | | April 1946 | 17 Rue De Teheran, Paris, 75008, France |
| GABRIEL, Yves RESIGNED | Director | 01 Mar 1999 | 26 Sep 2002 | | March 1950 | 21 Bis Route De Choiseul, Talou Chevreuse 78460, France, FOREIGN |
| GEORGE, Steve RESIGNED | Director | 27 Nov 2008 | 31 Mar 2015 | | December 1962 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| GILTHORPE, Charlotte Emma RESIGNED | Director | 18 Oct 2012 | 30 Sep 2018 | United Kingdom | July 1970 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| GIRLING, Christopher Francis RESIGNED | Director | 30 Oct 2014 | 10 Jan 2023 | England | January 1954 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| GOULDER, Patrick Renshaw RESIGNED | Director | 18 Jan 1999 | 31 Dec 2003 | | December 1934 | Yatesbury House, Farnham, Surrey, GU9 8UF |
| GRANGE, Pascal RESIGNED | Director | 27 Sep 2001 | 27 Feb 2003 | | February 1961 | 42 Boulevard Arago- 75013, Paris, FOREIGN, France |
| GREEN, Damian Howard RESIGNED | Director | 18 Dec 2007 | 26 May 2010 | United Kingdom | January 1956 | Highlands, Charing Hill, Charing, Kent, TN27 0NG |
| GREGORY, John Christopher RESIGNED | Director | | 31 Jul 1997 | | December 1945 | Nightingales 13 Willow Drive, Little Common, Bexhill On Sea, East Sussex, TN39 4PX |
| HAIRE, Georgina Mary-Rose RESIGNED | Director | 16 Jan 2026 | 03 Apr 2026 | England | June 1993 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| HALL, Christopher Sandford RESIGNED | Director | | 31 Jul 1997 | England | March 1936 | Great Danegate, Eridge Green, Tunbridge Wells, Kent, TN3 9HU |
| HARRIES, Charles David RESIGNED | Director | 18 Dec 2007 | 18 Oct 2012 | | November 1945 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| HAYTON, John George RESIGNED | Director | | 31 Jul 1997 | | February 1926 | Squirrels Leap 85 Dartford Road, Sevenoaks, Kent, TN13 3TE |
| HENRY, Keith Nicholas RESIGNED | Director | 01 Mar 2005 | 18 Dec 2007 | England | March 1945 | Amberwood Court, Warreners Lane, Weybridge, Surrey, KT13 0LQ |
| HIGGINS, Howard Charles RESIGNED | Director | 03 Oct 2005 | 02 Oct 2006 | United Kingdom | March 1953 | Church Farm, Glasshouse Lane Hockley Heath, Solihull, West Midlands, B94 6PU |
| HINTON, David Edwin RESIGNED | Director | 01 Jun 2013 | 22 Jul 2026 | England | November 1967 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| HOSKINS, Geoffrey Mark RESIGNED | Director | 25 Sep 1992 | 01 Oct 2003 | | August 1930 | North Barn, Micheldever, Hampshire, SO21 3DA |
| HOSKINS, Richard John RESIGNED | Director | 25 Jun 2008 | 27 Nov 2008 | Australia | May 1967 | 6 St Leonards Avenue, St Kilda, Victoria 3182, Australia |
| HUNTER, Andrew RESIGNED | Director | 01 Oct 2003 | 12 Aug 2004 | | June 1968 | 2 Holly Place, London, NW3 6QU |
| JENNINGS, John David RESIGNED | Director | | 31 Jul 1997 | | June 1925 | Hindleap Farm, Forest Row, East Sussex, RH18 5JH |
| JORDAN, Stephen Francis RESIGNED | Director | 17 Aug 2018 | 06 Dec 2019 | England | July 1980 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| KNIGHT, Angela Ann RESIGNED | Director | 18 Jan 1999 | 31 Dec 2004 | United Kingdom | October 1950 | Ronans Forest Road, Winkfield Row, Ascot, Berkshire, RG42 6LY |
| LE BOUC, Herve RESIGNED | Director | 26 Sep 2002 | 17 Dec 2003 | | January 1952 | 12 Rue Neuve Norte Damne, 78000 Versailles, France |
| LE GAL, Anne Noelle RESIGNED | Director | 18 Dec 2023 | 15 Aug 2024 | England | December 1983 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| LE GAL, Anne Noelle RESIGNED | Director | 18 Jun 2021 | 09 Mar 2023 | England | December 1983 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| LEBORGNE, Francis RESIGNED | Director | 27 Apr 2000 | 08 Dec 2000 | | March 1944 | 1 Avenue Eugene Freyssinet, St Quentin-En-Yvelines, 78061, France |
| LEROUX, Jean-Etienne RESIGNED | Director | 10 Jan 2011 | 26 Feb 2014 | Canada | July 1978 | Caisse De Depot Et Placement Du Quebec, 1000 Place Jean-Paul-Riopelle, Montreal, Quebec H2z 2b3, Canada |
| MALAN, Paul Richard RESIGNED | Director | 01 Oct 2003 | 12 Dec 2003 | United Kingdom | September 1970 | Flat 1 17 Pembridge Crescent, London, W11 3DX |
| MARIEN, Philippe RESIGNED | Director | 27 Feb 2003 | 30 Sep 2003 | | June 1956 | 19 Route Des Gatines, 91370 Verrieres Le Buisson, France |
| MAXWELL, Gordon Walker RESIGNED | Director | 02 Oct 2006 | 31 Mar 2015 | England | April 1953 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| MEINERT, Thomas RESIGNED | Director | 25 Jun 2008 | 27 Nov 2008 | | January 1973 | 3 Denham Place, Toorak, Victoria Vic 3182, Australia |
| MILLER, Jane Melanie RESIGNED | Director | 25 Jan 2001 | 28 Jun 2001 | | December 1958 | Atmyres Farm, The Street Nutbourne, Pulborough, West Sussex, RH20 2HE |
| O'CATHAIN, Detta, Baroness RESIGNED | Director | 18 Jan 1999 | 18 Dec 2007 | | February 1938 | C129 Parliament View Apartments, 1 Albert Embankment, London, SE1 7XN |
| OUELLET, Jean Pierre RESIGNED | Director | 25 Jul 2013 | 08 Feb 2017 | Canada | January 1948 | Caisse De Depot Et Placement Du Quebec, 1000 Place Jean-Paul-Riopelle, Montreal, Quebec H2z 2b3, Canada |
| PACKHAM, Patrick Oliver RESIGNED | Director | 25 Sep 1992 | 31 Jul 1997 | | December 1927 | 7 Priorswood, Compton, Guildford, Surrey, GU3 1DS |
| PETERSCHMITT, Louis RESIGNED | Director | 18 Jan 1999 | 27 Sep 2001 | | December 1938 | 1 Rue Denis Abraham, Clamart, 92140, France |
| RANCON, Patrice Christian RESIGNED | Director | | 28 Jun 2000 | | May 1946 | 146 Rue De Courcelles, Paris, 75017, France |
| RANKINE, Steven John RESIGNED | Director | 27 Nov 2008 | 12 Sep 2011 | | February 1960 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| RICH, Paul Andrew RESIGNED | Director | 25 Apr 2013 | 03 Jul 2017 | England | January 1956 | South East Water, Rocfort Road, Snodland, Kent, ME6 5AH |
| RIDLEY, David Andrew RESIGNED | Director | 18 Dec 2007 | 07 May 2008 | | April 1965 | Flat 2, 30 Holland Park Gardens, London, W14 8EA |
| ROSATI, Valeria, Ms RESIGNED | Director | 18 Dec 2007 | 07 Dec 2016 | United Kingdom | February 1975 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SALMON, Nicholas Robin RESIGNED | Director | 01 Apr 2015 | 31 Mar 2022 | England | June 1952 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SCHERRER, Denis Francois Andre RESIGNED | Director | 25 Jan 2001 | 01 Oct 2003 | | February 1948 | 22 Rue Du Mont-Valerien, Saint-Cloud, 92210, France |
| SCHUBERT, Oliver Jan RESIGNED | Director | 09 Mar 2023 | 18 Dec 2023 | England | July 1980 | 50 St. Mary Axe, 2nd Floor, London, EC3A 8FR, England |
| SCHUBERT, Oliver Jan RESIGNED | Director | 03 May 2017 | 30 Jan 2019 | United Kingdom | June 1972 | 2nd Floor, 50 St Mary Axe, London, EC3A 8FR, England |
| SEELEY, Paul RESIGNED | Director | 18 Dec 2007 | 31 Mar 2015 | Great Britain | November 1954 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SENNEPIN, Jacques Pierre RESIGNED | Director | | 24 Mar 1999 | | October 1936 | 34 Rue De Docteur Blanche, Paris 75016, France |
| SETTERFIELD, Graham Hillier RESIGNED | Director | 18 Dec 2007 | 28 Jan 2016 | England | August 1946 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SHORE, David Gordon RESIGNED | Director | 28 Feb 2007 | 30 Jun 2013 | | March 1952 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SNAITH, Elisabeth Anne RESIGNED | Director | 26 Jul 2001 | 01 Oct 2003 | United Kingdom | February 1960 | Tender Oaks, The Plantation Curdridge, Southampton, Hampshire, SO32 2DT |
| STANLEY, Martin Stephen William RESIGNED | Director | 03 Oct 2005 | 02 Oct 2006 | United Kingdom | June 1963 | IP12 |
| STANLEY, Martin Stephen William RESIGNED | Director | 12 Aug 2004 | 01 Jul 2005 | United Kingdom | June 1963 | IP12 |
| STENT, John Julian RESIGNED | Director | 30 Oct 2003 | 03 Oct 2005 | England | March 1955 | Melrose House 33 Ganghill, Guildford, Surrey, GU1 1XF |
| STIMPSON, Joanne Elizabeth RESIGNED | Director | 02 Oct 2006 | 31 Jul 2015 | England | August 1962 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SZCZEPANIAK, Marissa Ann RESIGNED | Director | 30 Jan 2019 | 18 Jun 2021 | England | December 1980 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| SZCZEPANIAK, Marissa Ann RESIGNED | Director | 08 Dec 2016 | 17 Aug 2018 | England | December 1980 | 2nd Level, 50 St. Mary Axe, London, EC3A 8FR, England |
| TALBOT, Jean-Francois RESIGNED | Director | | 01 Oct 2003 | | August 1947 | 22 Rue Jean Giraudoux, 75116 Paris, FRANCE |
| TAYLOR, Peter Nolan RESIGNED | Director | 02 Oct 2006 | 18 Dec 2007 | | January 1972 | 5 Sylvan Lane, Old Greenwich, Connecticut 06870, Usa |
| TENNANT, Raymond John RESIGNED | Director | 01 Mar 1992 | 24 Mar 1999 | England | October 1944 | 17 The Combe, Eastbourne, East Sussex, BN20 9DB |
| TRAIN, Christopher RESIGNED | Director | 24 Feb 2022 | 30 Apr 2026 | England | October 1960 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |
| WEEDEN, Robert RESIGNED | Director | 18 Dec 2007 | 25 Apr 2013 | United Kingdom | April 1945 | South East Water Limited, Rocfort Road, Snodland, Kent, ME6 5AH |