| LANKESTER, Katharine Jane, Dr. ACTIVE | Secretary | 15 Apr 2011 | | | | 45, Western Road, Hove, BN3 1JD, England |
| DENYER BAKER, Brian Alexander ACTIVE | Director | 15 Jan 2004 | | England | July 1940 | Pollards Farm Cottage, Ditchling Common, Burgess Hill, West Sussex, RH15 0SE |
| GRAY, Steven ACTIVE | Director | 09 Jan 2014 | | England | March 1967 | Stumbletree, Hamstreet, Ashford, Kent, TN26 2EA, England |
| HINGSTON, Toby Robin Henry ACTIVE | Director | 03 Dec 2022 | | England | April 1991 | 6 Royal Crescent, Flat 3, Brighton, BN2 1AL, England |
| JOHNSON, Robin David ACTIVE | Director | 19 Jan 2005 | | England | November 1948 | 45 The Tarters, Sharston, Wiltshire, SN16 0NT |
| LANKESTER, Katharine Jane, Doctor ACTIVE | Director | 01 Feb 2007 | | England | March 1969 | Flat 2 6, Royal Crescent, Brighton, East Sussex, BN2 1AL |
| DENYER, Albert Victor RESIGNED | Secretary | | 20 Jul 2000 | | | Flat 1 6 Royal Crescent, Brighton, BN2 1AL |
| HIRST, Paul Heywood, Professor RESIGNED | Secretary | 25 Aug 2004 | 15 Apr 2011 | | | Flat 3, 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| KALTON, Peter Maitland RESIGNED | Secretary | 20 Jul 2000 | 25 Aug 2004 | | | 23 Sandycombe Road, Richmond, Surrey, TW9 2EP |
| CRESWELL, Leslie James RESIGNED | Director | 02 Jan 2001 | 04 Jan 2005 | | August 1955 | Flat 4, 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| DENYER, Albert Victor RESIGNED | Director | | 22 Jul 2000 | | January 1915 | Flat 1 6 Royal Crescent, Brighton, BN2 1AL |
| GANNON, John Patrick RESIGNED | Director | | 05 Mar 1997 | | March 1930 | 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| HIRST, Paul Heywood, Professor RESIGNED | Director | 02 Jan 2001 | 12 Aug 2021 | England | November 1927 | 45, Western Road, Hove, BN3 1JD, England |
| JOBLING, Paul James, Doctor RESIGNED | Director | 16 Nov 2004 | 29 Jan 2007 | | September 1964 | Flat 2 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| KALTON, Peter Maitland RESIGNED | Director | 10 Jan 2001 | 14 Nov 2003 | | June 1958 | 23 Sandycombe Road, Richmond, Surrey, TW9 2EP |
| MACARTHUR, Ronald RESIGNED | Director | | 06 Jan 2001 | | March 1933 | 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| QUICK, Gillian Margaret RESIGNED | Director | 14 Nov 2003 | 16 Nov 2004 | | March 1962 | Flat 2, 6 Royal Crescent, Brighton, East Sussex, BN2 1AL |
| SIMMONS, Robert David RESIGNED | Director | 15 Jan 2004 | 13 Dec 2013 | England | March 1953 | Flat 7 24-26 Marlborough Road, London, W4 4ET |