The Schools Inclusion Alliance (SIA) is a membership network designed to support UK independent schools in fostering diverse, equitable, and inclusive environments. A collaboration between education leaders and inclusion experts, the SIA provides a platform for schools to share best practices, access resources, and receive strategic guidance on embedding inclusion into their ethos. Members sign a charter pledging tangible action toward creating cultures where all staff and students feel valued. The alliance focuses on moving schools beyond mere compliance toward genuine, systemic cultural change regarding diversity and inclusion.
SIA Member Schools (12)
Benenden School is an independent boarding school for girls aged 11 to 18, situated within the 250-acre Hemsted Park estate near Cranbrook, Kent. Founded in 1923, the school is centred on Hemsted House, a Victorian mansion built in the 1860s. Its educational approach follows a 'Complete Education' model, which integrates academic study with professional skills and personal development. Facilities include a dedicated science centre, a professional-standard theatre, and a music school with a concert hall. The expansive grounds accommodate a variety of activities, including lacrosse, hockey, and equestrian sports.
Caterham School is a co-educational day and boarding school for pupils aged 3 to 18, situated in the Harestone Valley in Surrey. Set within a 200-acre campus, the school was founded in 1811 and moved to its current location in 1884. It provides a broad curriculum with a strong emphasis on digital innovation, being recognised as an Apple Distinguished School. Facilities include a performing arts centre, a large sports complex, and extensive woodland used for outdoor education. The school fosters an environment focused on both academic achievement and personal development.
Frensham Heights is a co-educational day and boarding school for pupils aged 3 to 18, situated on a 120-acre estate near Farnham, Surrey. Founded in 1925, the school maintains a progressive ethos where students do not wear a uniform and staff are addressed by their first names. The campus is centred around a Grade II listed Edwardian mansion and features a dedicated performing arts centre. The school emphasises individual development and creative expression, offering a broad curriculum that includes a strong focus on outdoor education and the arts.
Haileybury is a co-educational independent day and boarding school for pupils aged 11 to 18, set within a 500-acre campus in Hertford Heath. Established in 1862 on the site of the former East India College, the school is home to historic architecture, including a chapel by Arthur Blomfield and one of the largest academic quadrangles in the UK. Academically, the school offers both A-levels and the International Baccalaureate Diploma. Facilities include a recently developed Science and Technology Centre, which supports an ethos focused on intellectual curiosity and global citizenship.
King Edward's Witley is a co-educational day and boarding school for pupils aged 11 to 18, situated within a 100-acre estate in the Surrey Hills. Founded in 1553 by King Edward VI, the school moved from London to its current site in Godalming in 1867. It offers a broad curriculum including both A-levels and the International Baccalaureate Diploma. The school emphasises a holistic education, supported by facilities such as a dedicated music school, a business and finance centre, and extensive sports grounds.
Kingston Grammar School is a co-educational independent day school for pupils aged 11 to 18, situated in Kingston upon Thames. Founded in 1561 by Royal Charter from Queen Elizabeth I, the school's historic site features the 14th-century Lovekyn Chapel, the only remaining free-standing chantry chapel in England. The school provides a broad academic curriculum alongside a diverse co-curricular programme. Extensive sporting facilities are located nearby at Ditton Field, covering 22 acres. The school's ethos encourages pupils to be intellectually curious and socially responsible within a supportive community.
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.
Reigate Grammar School is a co-educational day school for pupils aged 11 to 18, located in Reigate, Surrey. Founded in 1675 by Henry Smith, the school occupies a site near the town centre and maintains extensive sports facilities at its Hartswood grounds. The campus features a blend of traditional architecture and contemporary additions, such as the Harrison Centre library and learning hub. The school provides a broad academic curriculum complemented by a diverse range of extracurricular activities in music, drama, and sport, focusing on the development of well-rounded individuals.
Royal Russell School is a co-educational day and boarding school for pupils aged 3 to 18, situated on a 110-acre parkland estate in Croydon. Founded in 1853, the school maintains a long-standing royal patronage. The campus features notable architecture, including a chapel and Great Hall designed by Sir Aston Webb. The school provides a broad curriculum with a focus on developing well-rounded individuals through extensive extracurricular programmes in sport, music, and drama. Facilities include a performing arts centre, modern science laboratories, and comprehensive sports pitches.
St Christopher's School is an independent preparatory day school for girls aged 4 to 11, situated in Hampstead, North London. Established in 1883, the school is housed within Victorian villas on Belsize Lane. Its ethos balances academic rigour with creative imagination, encouraging pupils to be curious and analytical thinkers. Facilities include a dedicated music department and modern outdoor learning spaces. The school provides a nurturing environment where girls are encouraged to develop their own opinions and confidence, preparing them for a wide range of leading senior schools.
St Paul's School is an independent school for boys aged 7 to 18, situated on a 45-acre riverside site in Barnes, London. Founded in 1509 by John Colet, the school emphasises a liberal education and academic scholarship. Its extensive campus includes an on-site boat club, a theatre, and specialised science and music centres. St Paul's operates as both a day and boarding school, with flexible and weekly boarding available for senior pupils. The institution’s historical alumni include notable figures such as John Milton and Samuel Pepys.
Sydenham High School GDST is an independent day school for girls aged 4 to 18, situated in South London near Crystal Palace. Established in 1887, the school is a member of the Girls' Day School Trust and operates across two sites within walking distance of each other. The curriculum focuses on academic breadth alongside strengths in the creative arts, music, and sport. Facilities include a dedicated performing arts centre and a long-standing sports pavilion. The school's ethos encourages independence and self-belief within a supportive community setting.