| HEANEY, Catherine Anne ACTIVE | Secretary | 16 Nov 2011 | | | | 6, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| GALLAGHER, Helen Beth ACTIVE | Director | 01 Dec 2021 | | England | November 1975 | 9, New Place, Welwyn, AL6 9QA, England |
| HEANEY, Catherine Anne ACTIVE | Director | 14 May 2003 | | England | July 1967 | 6, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| MAGOMBE, Victoria Anne ACTIVE | Director | 01 Dec 2021 | | England | December 1984 | 1, New Place, Welwyn, AL6 9QA, England |
| POWER, Ann Margret ACTIVE | Director | 16 Nov 2011 | | United Kingdom | November 1963 | 5, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| QUINTELA, Maria Paula Alves Pereira, Dr. ACTIVE | Director | 01 Nov 2000 | | England | December 1969 | 7, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| SPENCER, Caroline Nicola ACTIVE | Director | 15 Dec 2016 | | England | July 1963 | 2, New Place, Welwyn, AL6 9QA, England |
| TAMBLIN, Katherine Lewis ACTIVE | Director | 15 Dec 2016 | | England | November 1977 | 4, New Place, Welwyn, AL6 9QA, England |
| BELL, Donald James RESIGNED | Secretary | 31 Oct 1992 | 15 May 1999 | | | 18 Shalcross Drive, Cheshunt, Waltham Cross, EN8 8UX |
| DAVIS, Nigel Keith RESIGNED | Secretary | 12 May 1999 | 16 Nov 2011 | | | Biopark Hertfordshire, Broadwater Road, Welwyn Garden City, Hertfordshire, AL7 3AX, United Kingdom |
| SANDERS, Roger Dennis RESIGNED | Secretary | | 31 Oct 1992 | | | 1 New Place, Welwyn, Hertfordshire, AL6 9QA |
| BARON, Karen RESIGNED | Director | 01 Jan 2012 | 15 Dec 2016 | United Kingdom | July 1966 | 2, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| BELL, Evelyn Ruth RESIGNED | Director | | 01 Nov 2000 | | October 1952 | 18 Shalcross Drive, Cheshunt, Waltham Cross, EN8 8UX |
| BELL, Nina RESIGNED | Director | | 19 Nov 2014 | United Kingdom | July 1931 | 4 New Place, Welwyn, Hertfordshire, AL6 9QA |
| BURNETT, Ella Nora RESIGNED | Director | 31 Oct 2007 | 10 Dec 2019 | United Kingdom | June 1924 | 9, New Place, Welwyn, Hertfordshire, AL6 9QA |
| CROPP, June Elizabeth RESIGNED | Director | | 06 Apr 2003 | | June 1942 | New Place House New Place, School Lane, Welwyn, Herts, AL6 9QA |
| CULLEN, Julie RESIGNED | Director | | 06 Jan 1995 | | October 1957 | 8 New Place, Welwyn, Hertfordshire, AL6 9QA |
| DAVIS, Elaine Olive RESIGNED | Director | 30 Jan 1999 | 14 Oct 2020 | United Kingdom | March 1961 | 1, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| DAVIS, Joyce RESIGNED | Director | | 15 Nov 2025 | United Kingdom | March 1935 | 3 New Place, Welwyn, Hertfordshire, AL6 9QA |
| DE SOYRES, Mary RESIGNED | Director | 06 Jan 1995 | 30 Apr 2014 | United Kingdom | July 1935 | 8 New Place, Welwyn, Hertfordshire, AL6 9QA |
| DRIVER, Ann RESIGNED | Director | 01 Nov 1996 | 01 Nov 2000 | | November 1963 | 5 New Place, Welwyn, Hertfordshire, AL6 9QA |
| GREEN, Valerie Elaine RESIGNED | Director | | 01 Nov 1996 | | May 1939 | 18 Kingsteignton, Shoeburyness, Essex, SS3 8AY |
| LUKER, Daphne RESIGNED | Director | 16 Jun 1992 | 01 Dec 1999 | | August 1930 | 1 New Place, School Lane, Welwyn, Hertfordshire, AL6 9QA |
| POWER, Daren RESIGNED | Director | 10 May 2000 | 16 Nov 2011 | United Kingdom | July 1962 | 5, New Place, Welwyn, Hertfordshire, AL6 9QA, United Kingdom |
| RHIND, Christine RESIGNED | Director | | 16 Jun 1992 | | December 1945 | 7 New Place, School Lane, Welwyn, Hertfordshire, AL6 9QA |
| SAINSBURY, Gillian Mary RESIGNED | Director | 03 Jan 1992 | 19 Oct 2005 | | June 1937 | 2 New Place, School Lane, Welwyn, Hertfordshire, AL6 9QA |
| SANDERS, Sa Wendy Minette RESIGNED | Director | | 17 Sep 2007 | | June 1947 | 7 New Place, Welwyn, Hertfordshire, AL6 9QA |
| SIDEY, Peter Lawrence RESIGNED | Director | | 03 Jan 1992 | | April 1926 | 2 New Place, Welwyn, Hertfordshire, AL6 9QA |