| RANSING, Rajesh Shriniwas, Dr. ACTIVE | Secretary | 14 Jan 2011 | | | | 51, Ffordd Dryden, Killay, Swansea, West Glamorgan, SA2 7PD, United Kingdom |
| NABNEY, Ian Thomas, Dr ACTIVE | Director | 29 Mar 1995 | | United Kingdom | July 1963 | 46 Sir Johns Road, Selly Park, Birmingham, B29 7ER |
| RANSING, Meghana Rajesh, Dr ACTIVE | Director | 14 Jan 2011 | | United Kingdom | April 1974 | 51, Ffordd Dryden, Killay, Swansea, West Glamorgan, SA2 7PD, United Kingdom |
| RANSING, Rajesh Shriniwas, Dr. ACTIVE | Director | 17 Feb 2005 | | Wales | September 1967 | 51 Ffordd Dryden, Killay, Swansea, West Glamorgan, SA2 7PD |
| CHEESEMAN, Mark James RESIGNED | Secretary | 20 Feb 2001 | 04 Feb 2004 | | | 8 Lincoln Green, Chellaston, Derby, Derbyshire, DE73 1QP |
| HARRIS, Thomas John, Dr RESIGNED | Secretary | 13 Apr 1994 | 12 May 1998 | | | 78 Broom Field, Lightwater, Surrey, GU18 5QW |
| HUNT, Jennifer Irene RESIGNED | Nominee Secretary | 30 Apr 1993 | 30 Apr 1993 | | | Homelea, 22 Sandford Road, Winscombe, Avon, BS25 1JA, Uk |
| KIRKHAM, Christopher, Dr RESIGNED | Secretary | 12 May 1998 | 21 Jan 2000 | | | 3 Oak Lane Cottages, Oak Lane Englefield Green, Egham, Surrey, TW20 0YU |
| SATCHWELL, Christopher John, Dr RESIGNED | Secretary | 30 Apr 1993 | 13 Apr 1994 | | | 252 Swanwick Lane, Swanwick, Southampton, Hampshire, SO31 7GS |
| STARR, Andrew Geoffrey, Dr RESIGNED | Secretary | 21 Jan 2000 | 25 Jan 2001 | | | 21 Northen Grove, Manchester, Lancashire, M20 2NL |
| STRANJAK, Armin RESIGNED | Secretary | 04 Feb 2004 | 01 Feb 2007 | | | 4 Templebell Close, Littleover, Derby, DE23 3YJ |
| THOMAS, Josephine, Dr RESIGNED | Secretary | 01 Feb 2007 | 14 Jan 2011 | | | 30 Coverdale, Whitwick, Coalville, Leicestershire, LE67 5BP |
| ADDERLEY, Richard William RESIGNED | Director | 21 Jan 2000 | 22 Jan 2004 | United Kingdom | September 1954 | Bearview, 11 Shireland Lane, Redditch, Worcestershire, B97 6UB |
| BISHOP, Christopher, Professor RESIGNED | Director | | 01 Oct 1997 | | April 1959 | 108 Oxford Road, Moseley, Birmingham, B13 9SQ |
| BOUNDS, David George, Professor RESIGNED | Director | 30 Apr 1993 | 07 Oct 1994 | | June 1953 | Torford Lodge Walwyn Road, Colwall, Malvern, Worcestershire, WR13 6QT |
| BRADLEY, Amanda Helen RESIGNED | Director | 14 Jan 1999 | 14 Jan 2005 | | July 1948 | Doone, Bashurst Hill, Horsham, West Sussex, RH13 0NY |
| BRINN, Michael RESIGNED | Director | 30 Apr 1993 | 07 Oct 1994 | | February 1939 | 39 Catch Bar Lane, Sheffield, S6 1TA |
| BULLEN, Robert Jon RESIGNED | Director | 23 Jan 2003 | 14 Jan 2005 | | July 1957 | 74 Westerleigh Road, Yate, Gloucestershire, BS37 4BN |
| CHEESEMAN, Mark James RESIGNED | Director | 20 Feb 2001 | 04 Feb 2004 | | January 1976 | 8 Lincoln Green, Chellaston, Derby, Derbyshire, DE73 1QP |
| CLIFTON, David RESIGNED | Director | 17 Jan 2008 | 06 Jan 2015 | United Kingdom | July 1976 | 96 Weston Way, Newmarket, Suffolk, CB8 7SF |
| COWLEY, Peter Herbert, Professor RESIGNED | Director | 13 Jun 1996 | 03 Jul 2000 | | July 1948 | 14 Montpelier, Quarndon, Derby, DE22 5JW |
| CRESSEY, David Charles RESIGNED | Director | 30 Apr 1993 | 13 Jan 1994 | | February 1963 | 91 Thoday Street, Cambridge, CB1 3AT |
| CUMMING, Simon Nicholas RESIGNED | Director | 01 Oct 1997 | 24 Jan 2002 | | June 1962 | 1 Fullers Close, Chesham, Buckinghamshire, HP5 1LU |
| CUMMING, Simon Nicholas RESIGNED | Director | 30 Apr 1993 | 13 Jan 1994 | | June 1962 | 1 Fullers Close, Chesham, Buckinghamshire, HP5 1LU |
| EBDEN, Mark, Dr RESIGNED | Director | 17 Jan 2008 | 10 May 2016 | United Kingdom | October 1977 | 19 Northampton Road, Oxford, OX1 4TG |
| ELLIS, Richard Kingsley RESIGNED | Director | 20 Feb 2001 | 01 Feb 2007 | | May 1958 | 11 Southbrook Place, Rook Lane, Winchester, Hampshire, SO21 3DE |
| EVERSON, Richard, Dr RESIGNED | Director | 20 Feb 2001 | 01 Feb 2007 | | June 1961 | 58 Saint Leonards Road, Exeter, Devon, EX2 4LS |
| GRANVILLE, Nicholas William, Dr RESIGNED | Director | 04 Feb 2004 | 14 Jan 2011 | United Kingdom | November 1957 | Hambleton, Intake Lane, Dunnington, York, YO19 5NX |
| HARRIS, Thomas John, Dr RESIGNED | Director | 30 Apr 1993 | 12 May 1998 | United Kingdom | December 1965 | 78 Broom Field, Lightwater, Surrey, GU18 5QW |
| HENSMAN, James John RESIGNED | Director | 09 Feb 2009 | 05 May 2017 | United Kingdom | September 1982 | 24, Hawksworth Road, Sheffield, South Yorkshire, S6 2WG, United Kingdom |
| HERDMAN, Peter Thomas RESIGNED | Director | | 21 Jan 2000 | | May 1946 | 157 Cressex Road, High Wycombe, Buckinghamshire, HP12 4PZ |
| HERZENSHTEIN, Zvi RESIGNED | Director | 01 Oct 1997 | 14 Jan 1999 | England | August 1933 | 25 Valiant House, Vicarage Crescent, London, SW11 3LU |
| HESKETH, Graham Bernard RESIGNED | Director | | 06 Jan 2015 | United Kingdom | September 1957 | 15 Wyston Brook, Hilton, Derby, Derbyshire, DE65 5JB |
| KIRKHAM, Christopher, Dr RESIGNED | Director | 22 Jan 1998 | 03 Jul 2000 | | September 1970 | 3 Oak Lane Cottages, Oak Lane Englefield Green, Egham, Surrey, TW20 0YU |
| LIGHTOWLER, Neil, Dr RESIGNED | Director | 21 Jan 2000 | 23 Jan 2003 | | May 1962 | 77 Don Street, Old Aberdeen, Aberdeen, Aberdeenshire, AB24 1UJ |
| MACINTYRE, John Dennis, Professor RESIGNED | Director | 01 Oct 1997 | 25 Apr 2020 | England | June 1959 | Burn View 94 New Ridley Road, Stocksfield, Northumberland, NE43 7EF |
| MARTIN, Elaine Barbara, Prof RESIGNED | Director | 23 Jan 2003 | 08 Feb 2006 | | November 1962 | 48 Henry Street, Gosforth, Newcastle-Upon-Tyne, NE3 1DQ |
| NIRANJAN, Mahesan, Professor RESIGNED | Director | 14 Jan 1999 | 25 Jan 2001 | | November 1959 | 117 Queen Ediths Way, Cambridge, Cambridgeshire, CB1 8PL |
| PALMER, Richard Patrick, Dr RESIGNED | Director | 29 Mar 1995 | 22 Jan 1998 | United Kingdom | October 1965 | The Limes, 367 Sandycombe Road, Richmond, Surrey, TW9 3PR |
| PARASHAR, Deepak, Dr. RESIGNED | Director | 14 Jan 2011 | 03 Jun 2020 | United Kingdom | January 1971 | 21, Wimpole Road, Barton,, Cambridge, Cambridgeshire, CB23 7AB, United Kingdom |
| PATEL, Ila, Dr RESIGNED | Director | 30 Apr 1993 | 13 Jun 1996 | England | November 1956 | 17 Millpond Court, Addlestone, Surrey, KT15 2JY |
| PRYKE, Andrew Neil, Dr RESIGNED | Director | 08 Feb 2006 | 03 Jun 2020 | United Kingdom | July 1969 | 4/24 Wake Green Road, Birmingham, West Midlands, B13 9PA |
| REDDING, Diana Elizabeth RESIGNED | Nominee Director | 30 Apr 1993 | 30 Apr 1993 | England | June 1952 | Rainbow House, Oakridge Lane Sidcot, Winscombe, Avon, BS25 1LZ |
| REZEK, Iead, Dr RESIGNED | Director | 24 Jan 2003 | 14 Jan 2011 | United Kingdom | January 1968 | 7 Larch Close, Oxford, Oxfordshire, OX2 9EW |
| SATCHWELL, Christopher John, Dr RESIGNED | Director | 30 Apr 1993 | 13 Apr 1994 | | May 1945 | 252 Swanwick Lane, Swanwick, Southampton, Hampshire, SO31 7GS |
| STARR, Andrew Geoffrey, Dr RESIGNED | Director | 21 Jan 2000 | 23 Jan 2003 | | July 1965 | 21 Northen Grove, Manchester, Lancashire, M20 2NL |
| STRANJAK, Armin RESIGNED | Director | 04 Feb 2004 | 01 Feb 2007 | | April 1971 | 4 Templebell Close, Littleover, Derby, DE23 3YJ |
| TERRY, John Malcolm RESIGNED | Director | 19 Jun 1995 | 14 Jan 1999 | | April 1951 | 34 Colville Drive, Bishops Waltham, Hampshire, SO32 1LT |
| THOMAS, Josephine, Dr RESIGNED | Director | 01 Feb 2007 | 14 Jan 2011 | United Kingdom | December 1976 | 30 Coverdale, Whitwick, Coalville, Leicestershire, LE67 5BP |
| VAUGHN, Marilyn Lougher, Dr RESIGNED | Director | 30 Apr 1993 | 01 Oct 1997 | United Kingdom | February 1943 | Watery Lane Studio, Blewbury, Oxfordshire, OX11 9PG, England |
| WALIA, Vibhu RESIGNED | Director | 17 Feb 2005 | 18 May 2005 | | September 1979 | 57 Cadnam Close, Harborne, Birmingham, B17 0PX |
| WORDEN, Keith, Dr RESIGNED | Director | 22 Jan 1998 | 21 Jan 2000 | | March 1962 | 24 Botanical Road, Sheffield, South Yorkshire, S11 8RP |
| WYNNE-JONES, Michael RESIGNED | Director | 30 Apr 1993 | 07 Oct 1994 | | May 1967 | 82 Lower Wyche Road, Malvern Wells, Worcestershire, WR14 4ET |