
The GSA acts as the professional association for the Heads of leading independent girls' schools in the United Kingdom. A constituent member of the Independent Schools Council (ISC), the organization advocates for the specific benefits of single-sex education, aiming to empower young women to become confident leaders. Beyond advocacy, it provides professional development for teachers, promotes high academic standards, and serves as a representative voice for the girls' school sector in media and government policy discussions.
Member Schools (20)

Burgess Hill Girls is an independent day and boarding school situated in Burgess Hill, West Sussex, for girls aged 2.5 to 18 years, with boys accepted in the nursery. The school is located on a 14-acre campus within a conservation area, near the town centre and accessible by rail and road links. Awarded an "Excellent" rating by the Independent Schools Inspectorate, the school claims to focus on fostering confidence, resilience, and creativity. Its motto is "I am, I can, I should, I will."

City of London School For Girls is an independent day school for girls aged 11-18, established in 1894. Situated adjacent to the Barbican Centre in the City of London, it operates within a Grade II listed building in an urban setting. The school claims to foster inspirational learning, intellectual excitement, and a culture of self-reflection, guided by values of respect, responsibility, and resourcefulness. It provides an extensive range of facilities, including a swimming pool and drama studio, and maintains strong links with the Barbican Arts Centre. The school emphasizes its commitment to bursary provision for a diverse student body.

The Granville School is an independent pre-school for boys and girls (ages 3-4) and a prep school for girls (ages 4-11), located in Sevenoaks, Kent. Situated on a private, leafy five-acre site, it is within walking distance of Sevenoaks Station. The school claims to focus on individual attention within a happy, secure, and stimulating environment, blending traditional prep school values with a forward-looking approach. Facilities include an indoor swimming pool, sports hall, multi-purpose courts, and Forest School areas. The school maintains a Christian ethos and states its mission as "Believe, Inspire, Achieve".

Situated in Camden, Greater London, The Cavendish School is an independent primary school for girls aged 3-11 years. Founded in 1875, it operates without religious affiliation and became a charitable trust in 1970. The school claims to focus on providing a warm, inclusive, and supportive environment, aiming to develop 'spirited, versatile achievers'. It offers a broad curriculum, including French and Mandarin, with typically small class sizes. Facilities include modern, bright spaces and a multi-use auditorium.

Brighton Girls GDST is an independent day school for girls aged 3 to 18, situated in the urban heart of Brighton and Hove, East Sussex. As part of the Girls' Day School Trust, the school's main site is located on Montpelier Road. The school claims to focus on values of kindness, ambition, and resilience, aiming to foster an inclusive environment. It provides various sports facilities and offers outdoor learning experiences, including a Beach School program.

Walthamstow Hall is an independent day school for girls located in Sevenoaks, Kent. Founded in 1838, the school educates girls aged 2 to 18, with a co-educational Nursery and Pre-School. Situated in its own campus, the school claims to focus on developing confident, challenging, and fulfilling lives for its pupils, underpinned by values of Respect, Integrity, Aspiration, Community, and Individuality. It was awarded 'Excellent' in all areas by the ISI in June 2019.

Kent College Pembury is an independent day and boarding school situated in 75 acres of countryside near Pembury, Kent, close to Royal Tunbridge Wells. The school, part of the Methodist Independent Schools Trust, claims to focus on an ethos of kindness, community, and inclusive nurturing, upholding Christian values while welcoming all faiths. It provides education from Nursery to Year 6 as co-educational, with the Senior School transitioning to fully co-educational from 2026. Kent College was awarded an 'Excellent' rating for Academic Achievement and Personal Development by the ISI in 2023.

South Hampstead High School is an independent day school for girls aged 4-18, situated in the leafy residential area of Hampstead, north-west London. Founded in 1876 by the Girls' Public Day School Trust (GDST), the school's motto is 'Mehr Licht' (More Light). The school claims to foster a culture of curiosity and kindness, emphasizing academic rigor alongside personal development. Facilities include a 4-acre sports ground and a state-of-the-art Senior School building. It was awarded "Independent Girls' School of the Year" in 2022.

Cobham Hall is an independent co-educational day and boarding school situated in Cobham, Kent, for pupils aged 11 to 19. The school is housed in a historic Grade I listed 16th-century manor house, set within 150 acres of Grade II-listed parkland. The school claims to nurture potential through the Round Square IDEALS, focusing on internationalism, democracy, environmentalism, adventure, leadership, and service. Its motto states, "There's more in you than you think."

Queen's College London is an independent day school for girls aged 4-18, situated in the City of Westminster, Greater London, specifically on Harley Street. Founded in 1848 by Frederick Denison Maurice, it holds the distinction of being the first British educational establishment to offer academic qualifications to women. The school occupies several urban Georgian and Art Nouveau buildings. The college has a liberal ethos based on its founder's principles, aiming to inspire excellence, critical thinking, and individual development. It received a Royal Charter in 1853.

Queenswood is an independent day and boarding school for girls aged 11-18, situated in Hertfordshire, near Hatfield, within a 120-acre parkland estate. The school has a Christian foundation and claims to focus on valuing each individual, promoting international understanding, and fostering a love of learning. It offers a broad curriculum alongside extensive co-curricular activities, utilizing facilities that include a 25-meter swimming pool and 27 tennis courts. Queenswood reports an international community, with approximately 20% of its pupils from overseas.

Mayfield School is an independent Catholic boarding and day school for girls aged 11 to 18, situated in the village of Mayfield, East Sussex. Established in 1872, the school is set within 70-75 acres of Sussex countryside. The school's ethos reflects its Catholic heritage and Cornelian values, claiming to focus on nurturing integrity, generosity, and respect within an inclusive community. Facilities include a 14th-century chapel, a riding arena, an indoor swimming pool, and dedicated art and science spaces.

Francis Holland (Regent's Park) is an independent day school for girls, established in 1878 and situated in central London, near Regent's Park. Operating from an urban setting, the school utilises Regent's Park and Paddington Recreation Ground for outdoor sports, in addition to on-site facilities that include a swimming pool. The school claims to focus on a holistic education, balancing academic ambition with pastoral care. Underpinned by a Christian ethos, it welcomes pupils of all faiths. A new Sixth Form Centre, Linhope House, opened in 2022.

Benenden School, founded in 1923, is an all-girls boarding school situated in 250 acres of parkland in Kent, a rural setting. It accommodates approximately 550-560 girls aged 11-18, with a limited number of day places. The school claims to focus on a 'Complete Education', aiming to shape future generations of successful, visionary women, and fostering values such as confidence, compassion, courage, and courtesy.

Roedean is an independent day and boarding school for girls aged 11 to 18. Situated on a clifftop site on the outskirts of Brighton, the school overlooks the English Channel and the Brighton Marina. The school aims to provide a holistic education that balances academic achievement with the development of character and talents. The main building, designed by Sir John Simpson, is Grade II listed. The school draws pupils from the local area, London, and internationally.

St Margaret's Hampstead is an independent all-through girls' school, educating approximately 170 pupils aged 4 to 16. Situated at 18 Kidderpore Gardens in the leafy residential area of Hampstead, Greater London, the school operates from a red-brick villa. The school claims to focus on a caring and challenging learning environment, guided by its motto 'Ad Vitam Paramus' – "Preparing for Life". While offering a well-equipped playground, the school utilises various North London venues for sports. It was awarded first place in The Sunday Times league tables for schools without a Sixth Form in 2023.

Channing School is an independent day school for girls aged 4 to 18, located in Highgate, North London. Founded in 1885, it is the UK's only Unitarian school, claiming to uphold principles of free thinking, acceptance, and inclusivity. The school's grounds feature natural wooded areas and utilize off-site facilities for sports. In 2015, the Independent Schools Inspectorate (ISI) awarded Channing School the highest possible judgements across all inspected categories.

Ivy House School is an independent co-educational prep day school for children aged 2.5 to 11, situated in leafy Hampstead, North London, within the green spaces of Golders Hill Park. The school, which operates with an academically selective admissions policy, claims to foster a nurturing environment focused on academic excellence and a love of learning. Its ethos is guided by values of kindness, inspiration, respect, and forgiveness. The school has been awarded an "Ofsted Outstanding" rating. It offers a tailored curriculum designed to prepare pupils for leading senior schools.

Berkhamsted Prep is a co-educational independent day preparatory school for pupils aged 7-11, situated in Berkhamsted, Hertfordshire. Operating within an urban setting, the school claims to focus on a child-centred approach, aiming to foster curiosity, motivation, and a thirst for learning. The curriculum is stated to develop life skills, critical thinking, and fluency in technology and creative arts, incorporating a metacognitive approach. The school also highlights a supportive community environment.

Sarum Hall School is an independent preparatory day school for girls aged 3 to 11, located in Belsize Park, North London. The school claims to focus on developing each pupil's talents within the context of Christian faith, emphasizing shared moral and spiritual tenets, and upholding "Golden Values" such as kindness and resilience. It operates as a non-selective school. Situated in an urban environment, the school features a modern, award-winning building with specialist teaching spaces and outdoor facilities including a garden, pond, and sports courts. A broad and balanced curriculum is offered, with specialist teaching across various subjects.