| FARRER, Claire, Dr ACTIVE | Director | 04 Dec 2024 | | England | October 1969 | Stone Pine, Wisley, Wisley, Woking, GU23 6QD, England |
| FLATMAN, Sally ACTIVE | Director | 04 Dec 2024 | | England | May 1965 | Stone Pine, Wisley, Wisley, Woking, GU23 6QD, England |
| HORSLEY, Nicola Jane, Prof ACTIVE | Director | 01 Sep 2026 | | England | February 1961 | Mill Farm, Pocklington Lane, Huggate, York, YO42 1YS, England |
| HUMPHREYS, John ACTIVE | Director | 04 Dec 2024 | | England | July 1955 | Stone Pine, Wisley, Woking, GU23 6QD, England |
| JAHROMI, Jasmine ACTIVE | Director | 04 Dec 2024 | | England | June 1990 | Stone Pine, Wisley, Woking, GU23 6QD, England |
| JAMES, Jacob George Ashley ACTIVE | Director | 01 Sep 2026 | | England | April 1993 | Grow Tropicals, Hall Nurseries, Upper Helmsley, York, YO41 1JY, England |
| KAPOOR, Kavita ACTIVE | Director | 14 Sep 2022 | | England | August 1974 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| MATHERS, David Richard ACTIVE | Director | 04 Dec 2024 | | England | May 1965 | Stone Pine, Wisley, Woking, GU23 6QD, England |
| MORGAN, Gareth Peter ACTIVE | Director | 10 Jul 2020 | | England | October 1969 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| NEWTON, Roderick, Sir ACTIVE | Director | 04 Dec 2024 | | England | April 1958 | Stone Pine, Wisley, Woking, GU23 6QD, England |
| WEIGHT, Della ACTIVE | Director | 04 Dec 2024 | | England | August 1962 | Stone Pine, Wisley, Woking, GU23 6QD, England |
| WILSON, Philip Charles ACTIVE | Director | 01 May 2026 | | England | October 1955 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| BAIN, Rodger RESIGNED | Secretary | 07 Apr 1998 | 01 May 2002 | | | 88 West Grove, Walton On Thames, Surrey, KT12 5PD |
| FONTAINE, Emma RESIGNED | Secretary | 02 May 2020 | 17 Apr 2021 | | | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| LOWE, Rupert Anthony William RESIGNED | Secretary | | 28 Sep 1993 | | | 13 Courtenay Road, Woking, Surrey, GU21 5HG |
| LUCAS, Grenville Llewellyn RESIGNED | Secretary | 26 Nov 1997 | 07 Apr 1998 | | | 3 Hornchurch Close, Kingston Upon Thames, Surrey, KT2 5GH |
| MELBOURNE WEBB, Genevieve RESIGNED | Secretary | 15 May 2003 | 31 Dec 2013 | | | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| NICHOL, David RESIGNED | Secretary | 01 Feb 1994 | 26 Nov 1997 | | | 13 Upper Phillimore Gardens, London, W8 7HF |
| QUARTERMAN, Sarah Elizabeth RESIGNED | Secretary | 19 Mar 2014 | 31 May 2018 | | | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| WHITE, Bernard William RESIGNED | Secretary | 28 Sep 1993 | 01 Feb 1994 | | | 79 Devon Way, Chessington, Surrey, KT9 2RH |
| AHEARNE, Ann Veronica RESIGNED | Director | 30 May 1994 | 01 May 1997 | | December 1941 | Westfield House, Cotes Heath, Stafford, Staffordshire, ST21 6RT |
| AHEARNE, Francis Ian RESIGNED | Director | 21 Apr 1998 | 21 Mar 2002 | | March 1935 | Westfield House Hall Lane, Cotes Heath, Stafford, Staffordshire, ST21 6RT |
| AINSWORTH, John RESIGNED | Director | 01 Nov 1991 | 24 Mar 1997 | | October 1936 | Bank Farm Bankhead Lane, Bamber Bridge, Preston, PR5 6YR |
| ALDER, Michael David, Professor RESIGNED | Director | 13 Nov 2008 | 16 Sep 2015 | United Kingdom | July 1947 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| ANTON-SMITH, John RESIGNED | Director | 16 Jul 1993 | 30 Jun 1997 | United Kingdom | June 1934 | Burnside Mill Lane, Prestbury, Cheltenham, Gloucestershire, GL52 3NE |
| BADGER, Marian Lilah RESIGNED | Director | 01 May 1996 | 07 Feb 2001 | | September 1945 | Oakwood 23 Ellis Farm Close, Mayford, Woking, Surrey, GU22 9QW |
| BAIN, Rodger RESIGNED | Director | 07 Apr 1998 | 08 Dec 1999 | United Kingdom | November 1945 | 88 West Grove, Walton On Thames, Surrey, KT12 5PD |
| BARBER, Margaret RESIGNED | Director | 22 Nov 1995 | 17 Mar 1999 | | February 1943 | Cloverhill Farm Old Toll, Ayr, Strathclyde, KA6 6LP |
| BARON, Michael RESIGNED | Director | 23 Apr 1994 | 17 Mar 1999 | | October 1932 | Brandy Mount House, Alresford, Hampshire, SO24 9EG |
| BARWICK, Gillian Cowell RESIGNED | Director | 01 Jul 1991 | 22 Nov 1995 | | May 1935 | Overglen St Clare Road, Upper Walmer, Deal, Kent, CT14 7QB |
| BENSON, Annette Elizabeth RESIGNED | Director | 13 Feb 1997 | 17 Mar 1999 | | | Fell Yeat, Casterton, Via Carnforth, Lancashire, LA6 2JW |
| BEYER, Reginald Ian RESIGNED | Director | 12 Oct 1988 | 01 Mar 1994 | | September 1932 | Lion Gate Lodge, 191 Kew Road, Richmond, Surrey, TW9 2AA |
| BLOOM, Adrian Jonathan Richard RESIGNED | Director | 01 Nov 1991 | 01 Mar 1994 | United Kingdom | May 1940 | Foggy Bottom Low Road, Bressingham, Diss, Norfolk, IP22 2AA |
| BOND, John David RESIGNED | Director | 01 Mar 1994 | 17 Mar 1999 | | June 1932 | Verderers Wick Road, Englefield Green, Egham, Surrey, TW20 0HL |
| BRACKEN, Phoebe Rose RESIGNED | Director | 17 Apr 2021 | 25 Sep 2022 | England | November 1998 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| BRISTOW, Elizabeth RESIGNED | Director | 22 Nov 1995 | 22 Nov 2001 | | May 1932 | 11 Hampstead Way, London, NW11 7JE |
| BUFTON, Cecilia Mary RESIGNED | Director | 05 Oct 2017 | 10 Mar 2026 | England | May 1963 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| BURNLEY, Rosamund Jane RESIGNED | Director | 01 Jul 2016 | 24 Feb 2017 | England | June 1975 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| BUTLER, Daphne RESIGNED | Director | 01 Feb 1989 | 03 May 1995 | | October 1926 | Crabb Cottage, Tellisford, Bath, Avon, BA3 6RL |
| CARTER, Dennis Frederick RESIGNED | Director | 01 Nov 1997 | 17 Mar 1999 | | November 1930 | 13 Laurel Crescent, Woodham Lane, Woking, Surrey, GU21 5SS |
| CATT, Peter RESIGNED | Director | 27 Nov 1991 | 30 Mar 1994 | England | September 1936 | Liss Forest Nursery, Petersfield Road, Greatham, Liss, Hampshire, GU33 6HA |
| CLOW, Katrina Menzies RESIGNED | Director | 26 Jul 2005 | 01 Jan 2008 | | March 1946 | Aiket Castle, Dunlop, Ayrshire, KA3 4BW, Scotland |
| CLOW, Katrina Menzies RESIGNED | Director | 20 Mar 2001 | 01 Sep 2002 | | March 1946 | Aiket Castle, Dunlop, Ayrshire, KA3 4BW, Scotland |
| COMPTON, Robert Edward John RESIGNED | Director | | 04 May 1994 | | July 1922 | Newby Hall, Ripon, North Yorkshire, HG4 5AE |
| COOK, Elizabeth Vanessa Mary Watson RESIGNED | Director | 12 Oct 1988 | 04 May 1994 | | October 1943 | Stillingfleet Lodge Nursery, Stillingfleet, York, Yorkshire, YO4 6HW |
| CRAWFORTH, Emma RESIGNED | Director | 26 Jul 2018 | 31 Jul 2026 | England | September 1968 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| CURTIS-MACHIN, Raoul RESIGNED | Director | 16 Sep 2015 | 04 Apr 2016 | United Kingdom | February 1969 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| DAWSON, Susan RESIGNED | Director | 26 Apr 2017 | 29 Sep 2017 | England | January 1951 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| DAWSON, Susan Hilary RESIGNED | Director | 16 Sep 2009 | 08 Mar 2016 | United Kingdom | January 1951 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| DAY, Rosemary RESIGNED | Director | 05 Oct 2017 | 18 Sep 2020 | England | September 1942 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| DONACHIE, Stuart RESIGNED | Director | 15 Mar 2007 | 20 Mar 2013 | United Kingdom | November 1964 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| EASTER, Margaret Gillian Mabel RESIGNED | Director | 29 Jul 2004 | 10 Oct 2006 | | September 1944 | 23 Wroxham Way, Harpenden, Hertfordshire, AL5 4PP |
| EDWARDS, Patricia Margaret RESIGNED | Director | 24 Jul 2002 | 08 Sep 2005 | | August 1934 | Swallow Hayes Rectory Road, Albrighton, Wolverhampton, West Midlands, WV7 3EP |
| ELLIOTT, John Gordon RESIGNED | Director | 12 Oct 1988 | 01 Mar 1994 | | October 1925 | Coldham, Little Chart Forstal, Ashford, Kent, TN27 0PU |
| EVANS, Charlotte Antonia RESIGNED | Director | 21 Apr 1993 | 22 Nov 1995 | | April 1939 | 59 Walcot Square, Kennington, London, SE11 4UB |
| EVERITT, Donald Gurney RESIGNED | Director | 01 Aug 1991 | 03 May 1995 | | February 1935 | 21 Dark Lane, Backwell, Bristol, BS19 3NT |
| FONTAINE, Emma Maria RESIGNED | Director | 02 May 2020 | 22 Feb 2022 | England | April 1979 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| FORD, David RESIGNED | Director | 04 May 2019 | 27 Mar 2020 | England | June 1967 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| FORREST, Mary RESIGNED | Director | 01 May 1995 | 17 Mar 1999 | | September 1955 | 9 Larchfield, Dundrum Road, Dublin, IRISH, Ireland |
| GANT, Richard William RESIGNED | Director | 20 Jul 2006 | 03 Jun 2015 | United Kingdom | March 1962 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| GOODCHILD, David James RESIGNED | Director | 20 Mar 2001 | 13 Nov 2008 | | September 1939 | 66 Darras Road, Ponteland, Newcastle, NE20 9PG |
| GOODWIN, Gail RESIGNED | Director | 04 Apr 2016 | 05 Apr 2018 | England | November 1951 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| GOULTY, Veronica Mary Jean RESIGNED | Director | 01 Dec 1990 | 01 Mar 1994 | | December 1949 | Wylam Wood House Wylam Wood Road, Wylam, Northumberland, NE41 8HZ |
| GREGORY, Roland John RESIGNED | Director | 01 Nov 1991 | 01 Jan 1995 | | April 1936 | Mill Hill House Elston Lane, East Stoke, Newark, Nottinghamshire, NG23 5QJ |
| HAINES, Michael Charles RESIGNED | Director | 03 May 1995 | 17 Mar 1999 | | October 1939 | 3 Sycamore Drive, Yeovil, Somerset, BA20 2NQ |
| HARPER, Kristopher David RESIGNED | Director | 24 Jul 2013 | 17 Oct 2017 | England | September 1975 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| HARRIS, Alastair John RESIGNED | Director | 04 May 2019 | 19 Oct 2020 | England | April 1953 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| HARRISON, Don RESIGNED | Director | 20 Mar 2001 | 01 Nov 2002 | | July 1937 | 1 Elmhurst Court, Hermosa Road, Teignmouth, Devon, TQ14 9LF |
| HEPPLE, Angela Imelda RESIGNED | Director | 26 Jul 2005 | 08 Dec 2009 | United Kingdom | February 1944 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| HILL, Elisabeth Cargill RESIGNED | Director | 27 Jan 1993 | 22 Nov 1995 | Scotland | August 1937 | Douglasmuir, Arbroath, Angus, DD11 4UN |
| HILLIER, John Gifford RESIGNED | Director | 12 Oct 1988 | 17 Mar 1999 | England | June 1935 | Crookhill Farm Braishfield, Romsey, Hampshire, SO51 0QB |
| HODGSON, Ian Geoffrey RESIGNED | Director | 13 Apr 2011 | 29 Sep 2017 | United Kingdom | May 1958 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| HOWELLS, David John RESIGNED | Director | 24 Jul 2006 | 05 Jun 2009 | | May 1947 | 4, Archery Fields, Bridge End, Warwick, CV34 6PQ |
| HUFF, Patricia, Dr RESIGNED | Director | 24 Jul 2002 | 13 Apr 2011 | United Kingdom | April 1952 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| JAMISON, David George, Dr RESIGNED | Director | 25 Nov 1992 | 04 Feb 1994 | | June 1924 | Les Fontenelles, Forest, Guernsey Channel Islands |
| JORDAN, Howard Alfred John, Brigadier RESIGNED | Director | 17 Mar 1999 | 01 Aug 2000 | | March 1936 | C/0 Ehrler, 3 Thrasyvaulou Ropa Street, Larnaca, Cyprus, G76 9BJ |
| JOY, Kenneth RESIGNED | Director | 20 Nov 2002 | 28 Jun 2005 | United Kingdom | May 1935 | 18 Manor Road, Kenilworth, Warwickshire, CV8 2GJ |
| KENYON, Lloyd, Councillor RESIGNED | Director | 15 Nov 2006 | 03 Dec 2014 | United Kingdom | July 1947 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| KOHN, Jean Margaret RESIGNED | Director | 01 Jul 1990 | 01 Dec 1996 | | January 1931 | 1 Mostyn Road, Hazel Grove, Stockport, Cheshire, SK7 5HL |
| LAMB, Christopher Charles RESIGNED | Director | 29 Jul 2004 | 25 Jul 2007 | | March 1947 | The Coach House, Warkton, Kettering, Northamptonshire, NN16 9XJ |
| LLOYD, Mandy RESIGNED | Director | 17 Aug 2021 | 28 Dec 2022 | England | October 1966 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| LUCAS, Grenville Llewellyn RESIGNED | Director | 01 Oct 1997 | 24 Jan 2002 | | December 1935 | 3 Hornchurch Close, Kingston Upon Thames, Surrey, KT2 5GH |
| MAIN, John Duguid RESIGNED | Director | 01 Jan 1990 | 17 Mar 1999 | | September 1940 | East Gate House, 7b Inverleith Row, Edinburgh, EH3 5LP |
| MARGRAVE, Christopher John RESIGNED | Director | 23 Nov 1994 | 17 Mar 1999 | | August 1956 | Chevetmoorgate Lodge Hill Top Road, Newmillerdam, Wakefield, West Yorkshire, WF2 6PZ |
| MARSHALL, James Muir RESIGNED | Director | 18 Apr 2018 | 28 Apr 2026 | United Kingdom | November 1941 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| MAXWELL, Francis Reginald Beech RESIGNED | Director | 01 Nov 1989 | 17 Mar 1999 | | December 1944 | 241 Cavehill Road, Belfast, BT15 5BS |
| MCCOLL, James Hamilton RESIGNED | Director | 31 Dec 1997 | 17 Mar 1999 | Scotland | September 1935 | Ayrshire Cottage, 45, King Street, Oldmeldrum, Inverurie, Aberdeenshire, AB51 0EQ |
| MONTGOMERY, John Matthew RESIGNED | Director | 22 Nov 1995 | 01 May 1996 | | May 1930 | 22 Red Lane, Claygate, Esher, Surrey, KT10 0ES |
| NAPIER, Elspeth Margaret Jane RESIGNED | Director | 01 Mar 1997 | 01 Oct 1997 | | March 1929 | 447 Wateringbury Road, East Malling, West Malling, Kent, ME19 6JQ |
| NELSON, Joan Mary RESIGNED | Director | 12 Oct 1958 | 04 May 1994 | | November 1920 | Tan House 15 South End, Bassingbourn, Royston, Hertfordshire, SG8 5NJ |
| NEX, Sally RESIGNED | Director | 26 Jul 2018 | 04 Dec 2024 | England | May 1967 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| NUTT, Richard RESIGNED | Director | 28 Oct 1988 | 01 Jan 1995 | | September 1929 | Great Barfield, Bradenham, High Wycombe, Buckinghamshire, HP14 4HD |
| OWEN, Margaret Macalister RESIGNED | Director | 12 Oct 1988 | 04 May 1994 | | November 1930 | The Flat, Wrentnall House, Pulverbatch, Shropshire, SY5 8EB |
| PALMER, Nigel RESIGNED | Director | 18 Apr 2012 | 16 Sep 2015 | United Kingdom | June 1962 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |
| PEARSON, Kenwyn Francis Rowarth RESIGNED | Director | | 18 Jul 1990 | | May 1952 | 116 Walton Street, Chelsea, London, SW3 2JJ |
| PEDDLE, Maryrose Avril Irene RESIGNED | Director | 01 Feb 1995 | 20 Mar 2001 | | April 1952 | 1 Cumberland Road, Loughborough, Leicestershire, LE11 5DE |
| PENNY, Catherine RESIGNED | Director | 05 Oct 2017 | 04 Dec 2024 | England | January 1954 | First Floor Offices, Stone Pine House,, Wisley, Woking, Surrey, GU23 6QD, England |
| PICKUP, Michael Terence RESIGNED | Director | 01 Apr 1997 | 22 Nov 2000 | | September 1933 | The Vineyard Seaton Road, Colyford, Colyton, Devon, EX13 6QW |
| PLACK, Audrey, Doctor RESIGNED | Director | 21 Apr 1993 | 22 Jan 1996 | | October 1927 | Rhus, Bridford, Exeter, Devon, EX6 7LD |
| RATCLIFFE, Alan Paul RESIGNED | Director | 06 Nov 2013 | 20 Nov 2017 | England | December 1950 | 12 Home Farm, Loseley Park, Guildford, Surrey, GU3 1HS |