| BROWELL-HOOK, Matthew David ACTIVE | Director | 01 Sep 2025 | | United Kingdom | March 1983 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HARRISON, Nicholas Charles ACTIVE | Director | 31 Jul 2024 | | United Kingdom | January 1967 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CALDWELL, Lucy Elizabeth RESIGNED | Secretary | 31 Oct 1997 | 11 Sep 2000 | | | 19 St Davids Drive, Englefield Green, Surrey, TW20 0BA |
| FELTON, Elizabeth Jayne RESIGNED | Secretary | 30 Jan 1997 | 01 Oct 1997 | | | 25 Merlin Clove, Winkfield Row, Bracknell, Berkshire, RG42 7TD |
| FURMSTON, Teresa Jane RESIGNED | Secretary | 01 Dec 1997 | 22 Feb 1999 | | | 12 Hinchley Close, Esher, Surrey, KT10 0BY |
| GARRIHY, Anne RESIGNED | Secretary | 02 Feb 1996 | 08 Aug 1996 | | | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| JACKSON, John Henry RESIGNED | Secretary | 30 Jan 1996 | 02 Feb 1996 | | | 14 Newlands Park, Copthorne, Crawley, West Sussex, RH10 3EW |
| MACLEOD, Nicola RESIGNED | Secretary | 29 Jan 2019 | 31 Jul 2024 | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PATIENCE, Donald William John RESIGNED | Secretary | 02 Feb 1996 | 08 Aug 1996 | | | Burnside Little Ann, Abbotts Ann, Andover, Hampshire, SP11 7NW |
| RITCHIE, Ian RESIGNED | Secretary | 26 Jul 1999 | 11 Sep 2000 | | | 66 Cherwell Drive, Marston, Oxford, Oxfordshire, OX3 0LZ |
| CENTRICA SECRETARIES LIMITED RESIGNED | Secretary | 11 Sep 2000 | 31 Dec 2018 | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HACKWOOD SECRETARIES LIMITED RESIGNED | Nominee Secretary | 18 Oct 1995 | 30 Jan 1996 | | | One Silk Street, London, EC2Y 8HQ |
| ALEXANDER, Michael Richard RESIGNED | Director | 30 Jan 1996 | 31 Oct 1997 | United Kingdom | November 1947 | 1 Hibberts Way, Gerrards Cross, Buckinghamshire, SL9 8UD |
| ASTELL, Michael Peter RESIGNED | Director | 10 Dec 2010 | 15 Nov 2013 | United Kingdom | September 1966 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BARTHOLOMEW, Iain Douglas, Dr RESIGNED | Director | 16 Apr 2012 | 01 Jan 2014 | United Kingdom | July 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BARTLETT, Graham John RESIGNED | Director | 30 Jan 1996 | 30 Aug 1996 | United Kingdom | April 1956 | 11, Kestrel Close, Ewshot, Farnham, Surrey, GU10 5TW |
| BENNETT, Alan RESIGNED | Director | 24 Oct 2001 | 28 Apr 2005 | United Kingdom | May 1952 | Hillside Cottage, Hillside Park, Sunningdale, Berkshire, SL5 0EY |
| BEVINGTON, Andrew Richard RESIGNED | Director | 01 Jan 2014 | 13 Feb 2017 | England | June 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CLARK, Simon Richard RESIGNED | Director | 21 Mar 2003 | 02 Feb 2004 | | January 1964 | Orchard Cross, Upper Icknield Way Whiteleaf, Princes Risborough, Buckinghamshire, HP27 0LX |
| CLARKE, David RESIGNED | Director | 16 Feb 1998 | 17 Sep 2003 | | April 1953 | 38 London Road, Harston, Cambridge, CB2 5QH |
| COCHRANE, Peter Kevin RESIGNED | Director | 02 Feb 2004 | 02 Dec 2010 | United Kingdom | September 1952 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COHEN, Colette Brigid RESIGNED | Director | 01 Jan 2014 | 30 Jun 2016 | United Kingdom | August 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COLLINSON, Graeme Stuart, Dr RESIGNED | Director | 13 Feb 2009 | 11 Nov 2011 | England | May 1956 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COWIE, John RESIGNED | Director | 05 Aug 2022 | 07 Apr 2023 | United Kingdom | February 1968 | 1st Floor, 20 Kingston Road, Staines-Upon-Thames, TW18 4LG, England |
| COX, Christopher Martin RESIGNED | Director | 01 Mar 2016 | 08 Dec 2017 | England | March 1961 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DE LEEUW, Paul RESIGNED | Director | 11 May 2011 | 16 Aug 2013 | Scotland | February 1964 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DUNN, Nicholas James RESIGNED | Director | 28 Apr 2005 | 19 Jan 2006 | United Kingdom | November 1966 | 4 Hatherley Road, Richmond, Surrey, TW9 3LH |
| ELLIS, Paul William RESIGNED | Director | 30 Jan 1996 | 29 Nov 1996 | United Kingdom | April 1946 | Glebe House, Church Lane, Dunsden, Berkshire, RG4 9PG |
| GARSTANG, Michael John RESIGNED | Director | 01 Aug 2001 | 30 Jun 2008 | United Kingdom | June 1948 | Knott Barn, Tatham Fells, Wray, Lancaster, LA2 8PS |
| GOWER-JONES, Anthony David RESIGNED | Director | 25 Nov 2011 | 01 Jan 2014 | United Kingdom | February 1955 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HANAFIN, Vincent Mark RESIGNED | Director | 31 Jul 2008 | 08 Feb 2010 | United Kingdom | October 1959 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HARRISON, Gerald Martin RESIGNED | Director | 08 Dec 2017 | 24 Jun 2022 | United Kingdom | February 1954 | 1st Floor, 20 Kingston Road, Staines-Upon-Thames, TW18 4LG, England |
| HEDLEY, Paul Ian, Mr. RESIGNED | Director | 01 Sep 2011 | 25 Oct 2013 | United Kingdom | October 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HEPBURN, Peter Wilson RESIGNED | Director | 29 Sep 2023 | 30 Sep 2026 | United Kingdom | December 1971 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| JONES, Dennis Gareth RESIGNED | Director | 13 Jan 2020 | 30 Aug 2024 | England | May 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| LAPPIN, Mark Stephen RESIGNED | Director | 01 Jan 2014 | 13 Jul 2016 | Scotland | May 1961 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| LE PODEVIN, Andrew Daryl RESIGNED | Director | 19 Jan 2006 | 05 Oct 2011 | | April 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| LE POIDEVIN, Andrew Daryl RESIGNED | Director | 14 Jul 2017 | 31 May 2019 | England | April 1958 | 1st Floor, 20 Kingston Road, Staines-Upon-Thames, TW18 4LG, England |
| LEHMANN, Peter Julian, Dr RESIGNED | Director | 19 Dec 1996 | 31 Dec 1998 | | October 1944 | 28 Birchwood Road, London, SW17 9BQ |
| LISHMAN, Tamsin Maureen Kathleen RESIGNED | Director | 13 Feb 2017 | 31 Dec 2018 | United Kingdom | November 1976 | 1st Floor, 20 Kingston Road, Staines-Upon-Thames, TW18 4LG, England |
| LUMSDEN, Roy Andrew RESIGNED | Director | 05 Jun 2015 | 14 Jul 2017 | United Kingdom | April 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| MACLEOD, Nicola Jane RESIGNED | Director | 11 Sep 2018 | 31 Jul 2024 | Scotland | March 1974 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| MADDOCK, Nicholas William RESIGNED | Director | 08 Feb 2010 | 05 Jul 2011 | United Kingdom | January 1971 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| MASSARA, Paul Joseph RESIGNED | Director | 31 Oct 1997 | 16 Feb 1998 | | July 1965 | 49 Lillieshall Road, Clapham, London, SW4 0LW |
| MCCULLOCH, Neil James RESIGNED | Director | 01 Jan 2019 | 29 Sep 2023 | Scotland | October 1970 | 1st Floor, 20 Kingston Road, Staines-Upon-Thames, TW18 4LG, England |
| MCGINIGAL, Scott RESIGNED | Director | 18 Sep 2024 | 18 Jul 2025 | United Kingdom | October 1971 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| MELAND, Steinar RESIGNED | Director | 13 Jul 2016 | 08 Dec 2017 | Norway | February 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| OZSANLAV, Richard RESIGNED | Director | 28 Feb 2014 | 05 Jun 2015 | United Kingdom | May 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| ROBERTSON, Kenneth Murray RESIGNED | Director | 01 Jan 2014 | 08 Dec 2017 | Scotland | December 1960 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| ROGER, Jonathan Leslie RESIGNED | Director | 08 Feb 2010 | 20 May 2013 | United Kingdom | May 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| ROSS, Stuart RESIGNED | Director | 16 Jun 1997 | 31 Oct 1997 | England | October 1956 | 15 Mckay Road, London, SW20 0HT |
| SAMBHI, Sarwjit RESIGNED | Director | 20 May 2013 | 29 Feb 2016 | United Kingdom | July 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SAMBHI, Sarwjit RESIGNED | Director | 17 Sep 2003 | 28 Apr 2005 | | July 1969 | Old Priory, The Green, Datchet, Berkshire, SL3 9JL |
| SHEARS, John Nicholas RESIGNED | Director | 28 Apr 2005 | 08 Feb 2010 | British | October 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SHEARS, John Nicholas RESIGNED | Director | 01 Mar 1997 | 05 Jan 2002 | British | October 1958 | Lovania Birch Lane, Ascot, Berkshire, SL5 8RF |
| TANNER, Paul Martyn, Roger RESIGNED | Director | 13 Jul 2016 | 31 May 2018 | Scotland | July 1973 | Iq Building, 15 Justice Mill Lane, Aberdeen, AB11 6EQ, United Kingdom |
| ULRICH, Jacob Shields RESIGNED | Director | 31 Oct 1997 | 31 Jul 2008 | England | February 1953 | 74 Drayton Gardens, London, SW10 9SB |
| HACKWOOD DIRECTORS LIMITED RESIGNED | Nominee Director | 18 Oct 1995 | 30 Jan 1996 | | | One Silk Street, London, EC2Y 8HQ |