
The Independent Schools Association (ISA) represents the Heads of over 650 of the UK’s best independent schools. As a member of the Independent Schools Council (ISC), it provides professional support, fellowship, and a collective voice for its members. The ISA is known for its diverse membership, which includes co-educational and single-sex schools, boarding and day schools, and specialist schools for the arts or specific educational needs. It fosters collaboration and high standards, and also organises a wide array of national sporting, artistic, and cultural events for pupils.
ISA Member Schools (251)

St John's Preparatory and Senior School is a co-educational independent day school for pupils aged 3 to 19, situated in Potters Bar, Hertfordshire. Set within 28 acres of green belt countryside, the school is arranged across two sites, with the senior department housed in a Grade II listed building. The ethos focuses on developing well-rounded individuals, combining academic rigour with a supportive social environment. Notable features include a compulsory supervised prep hour for pupils aged seven and above, alongside facilities such as a large sports hall and extensive outdoor space.

Babington House School is an independent co-educational day school for pupils aged 3 to 18, situated in Chislehurst, Kent. Established in 1887 by Madame Rossel and named after the writer Lord Thomas Babington Macaulay, the school moved to its current site at Elmstead Grange in 1957. It combines academic rigour with a nurturing ethos underpinned by Christian values. The school is known for its small class sizes and a broad curriculum with a strong focus on the arts, music, and sport, supported by modern facilities for performing arts and extensive games areas.

Shoreham College is an independent co-educational day school for pupils aged 3 to 16, located in Shoreham-by-Sea, West Sussex. Founded in 1852, the school is set within an 11-acre campus that includes a 500-year-old Tudor manor house and historic flint walls. The college follows a non-selective admissions policy and provides an education focused on individual well-being and academic breadth. Specialist facilities include a heated open-air swimming pool, modern STEM laboratories, and a forest school. The site also features extensive playing fields for sporting activities and outdoor learning.

Colchester Prep & High School is a co-educational independent day school in Essex, catering for pupils aged 2 to 16. Situated on an urban site on Wellesley Road, the school comprises a series of converted Victorian houses. It delivers an education focusing on global citizenship, social responsibility, and a digital, STEAM-powered curriculum. Founded to provide a comprehensive education, the school fosters a supportive community that helps develop balanced, confident young individuals prepared for the modern world. It provides continuity from nursery up to the senior stage.

Gatehouse School is a co-educational independent day school for pupils aged 3 to 11, situated in Bethnal Green opposite Victoria Park. Founded in 1948 by Phyllis Wallbank in the gatehouse of St Bartholomew-the-Great, the school moved to its current site in the 1970s. Its educational philosophy is rooted in Montessori principles, fostering an inclusive, non-selective environment. The school prioritises the arts and physical education, utilising its own playgrounds and the adjacent parkland for sports. Recent renovations have added modern facilities, including a new assembly hall and specialised spaces for music and drama.

Lingfield College is a co-educational independent day school for pupils aged 2 to 18, situated in 40 acres of grounds in the Surrey countryside. Originally founded in 1940 by the Sisters of Notre Dame des Missions, the school transitioned from its origins as a convent school to its current secular status. The college emphasises a well-rounded education, combining academic study with a focus on pastoral care and extracurricular engagement. Facilities include a dedicated Sixth Form Centre and extensive sporting grounds, supporting a curriculum designed to foster individual growth and community spirit.

Cranmore School is an independent day school set within 25 acres of grounds in West Horsley, Surrey. Founded in 1968, the school follows a Roman Catholic ethos and is part of the Effingham Schools Trust. It operates a diamond model, offering co-education in the early years before transitioning to single-sex provision for boys aged 7 to 16. The campus features various facilities, including a purpose-built music school with a Mander pipe organ, a 25-metre indoor swimming pool, a nine-hole golf course, and a contemporary Science and Technology Centre.

Sackville School is a co-educational independent day school for pupils aged 11 to 18, situated in Hildenborough, Kent. Housed in Foxbush House, a Victorian building dating from 1866, the school is set within scenic grounds in the Kent countryside. It operates as a small, non-selective community that focuses on individual growth and tailored academic support. The curriculum spans GCSE and A-Level courses, complemented by facilities such as a sports hall and fitness suite. The school’s ethos emphasises personal development and collaboration within a supportive, family-like environment.

Duke of Kent School is a co-educational independent day school for pupils aged 3 to 16, located in Ewhurst within the Surrey Hills. Established in 1976 by the Royal Air Force Benevolent Fund, the school is housed in Woolpit House, a Grade II listed building originally constructed in 1885 for Henry Doulton. Set within extensive grounds and forest land, the school provides a nurturing environment with a focus on academic development alongside music, drama, and sport. Its ethos emphasises individual wellbeing and a growth mindset, supporting pupils through to their GCSEs.

The Mulberry House School is an independent co-educational pre-prep and nursery for pupils aged two to seven, located in West Hampstead, North West London. Operating across two sites, the school is housed in refurbished Victorian buildings on Minster Road and Shoot Up Hill. The curriculum emphasises the development of the whole child, balancing academic preparation for 7+ transitions with creative arts, music, and physical education. The school's ethos focuses on fostering curiosity and individual potential, maintaining strong links with many of the capital's leading preparatory and senior schools.

Eaton Square Prep School is a co-educational independent day school for pupils aged 2 to 11, located in Belgravia, London. Occupying three Grade II listed Georgian townhouses overlooking Eccleston Square, the school combines a traditional British ethos with a modern curriculum. Academic study is supported by specialist teaching in STEAM, music, and art, while character development is fostered through core values such as integrity and empathy. The school utilises nearby sporting facilities and private gardens, preparing pupils for transition to leading senior schools.

St Margaret's Preparatory School is an independent co-educational day school located in the North Essex village of Gosfield, near Halstead. The school caters for pupils aged two to eleven, comprising a day nursery, pre-prep, and prep departments. Situated within seven acres of listed parkland, the main campus revolves around an eighteenth-century, Grade II listed converted coach house and stable block. The educational ethos focuses on fostering character development and a love of learning within a nurturing environment. Specialist instruction is integrated into the curriculum, covering subjects such as French, music, and physical education.