
Founded in 1997, BAISIS is dedicated to championing the academic and pastoral support of international students within UK independent schools. It defines and shares best practices in areas such as English as an Additional Language (EAL), visa compliance, and cultural integration. The association provides specialized training, conferences, and networking opportunities to help staff navigate the unique challenges of educating a global student body. Since 2020, BAISIS has operated as part of the BSA Group (Boarding Schools’ Association), strengthening its ability to support schools in delivering high-quality care to overseas pupils.
BAISIS Member Schools (10)

Situated in the Sussex countryside in Upper Dicker, near Hailsham, Bede’s Senior School is a co-educational day and boarding school for pupils aged 13 to 18. The school claims to offer a holistic education that prioritises individual interests, combining academic study with traditions in the performing arts and sport. Notable facilities include an on-site zoo housing over 70 species and the Legat School of Dance. Its ethos focuses on cultivating curiosity and ambition within an inclusive community that values personal growth and both creative and academic achievement.

Bishop's Stortford College is a co-educational day and boarding school situated on a 130-acre campus in Hertfordshire, on the edge of the market town of Bishop's Stortford. Established in 1868, it caters for pupils aged 3 to 18. The school claims to focus on developing well-rounded individuals by promoting academic excellence, scholarship, strong character-forming values, and community. Its ethos is rooted in the Christian faith, welcoming individuals of all beliefs.

Charterhouse is an independent boarding and day school situated within a 250-acre campus in the Surrey Hills National Landscape, near Godalming. The school's rural grounds feature woodland, lawns, and extensive sports facilities, including numerous pitches, a sports centre with a swimming pool, and a golf course. The school became fully coeducational from the age of 13 in September 2021. Charterhouse claims to focus on an all-round education, aiming to equip pupils to be "future-ready" and instilling academic rigour, intellectual curiosity, and values such as compassion and integrity.

Cottesmore School is a co-educational boarding preparatory school, founded in 1894. Situated in Pease Pottage, West Sussex, its campus spans 140 acres of countryside and includes a Grade II-listed Victorian building. The school claims to focus on a Christian and family ethos, aiming to provide an all-round education encompassing academics, sports, and creative arts. It aims to develop character and foster a nurturing environment. Cottesmore School has been noted in "The Spear's Index 2024" as one of the world's 100 leading private schools and one of the top 15 UK prep schools.

DLD College London is a multi-award winning, co-educational independent day and boarding school located at 199 Westminster Bridge Road, London SE1 7FX. Situated on the South Bank, opposite Westminster and the River Thames, it operates as an urban institution with modern facilities. The school claims its ethos is based on Development, Leadership, and Diversity, aiming to foster a supportive environment for academic and personal growth for students aged 13-19.

Situated in Eastbourne on the East Sussex coast, Eastbourne College is a co-educational day and boarding school for pupils aged 13 to 18. Established in 1867, the school is located between the beach and the South Downs, describing itself as a ‘blue health school’ that promotes well-being through its maritime environment. The campus features the Birley Centre and the Winn Building, offering a mix of modern and traditional facilities. The school claims to focus on a holistic education underpinned by its core values of excellence, integrity, participation, and kindness.

Mill Hill International is a co-educational day and boarding school for international pupils aged 13 to 18, situated in Greater London. The school is located on Milespit Hill, Mill Hill Village, within a green park area spanning 150 acres, offering a "London in the Countryside" environment. It claims to focus on developing habits of mind that promote confidence, resilience, creativity, and academic excellence. The school also aims to cultivate respect, tolerance, social responsibility, and a strong sense of community.

Mill Hill School is a co-educational private day and boarding school situated in Mill Hill, Greater London, on the edge of the North London Green Belt. Established in 1807 by Christian non-conformists, its original mission aimed to provide excellent education close to London but away from inner-city pressures, fostering a 'London in the Countryside' feel. The school occupies a 120-acre site. It claims to focus on instilling values and inspiring minds.

Prior's Field is an independent girls' boarding and day school situated in Godalming, Surrey. Set within 42 acres of parkland, the school was founded in 1902 by Julia Huxley. It caters to pupils aged 11 to 18. The school claims to focus on developing unique individuals and fostering happiness as a foundation for success. Prior's Field emphasizes an inclusive ethos and independence of thought, with its motto being "We live by Admiration, Hope and Love."

TASIS The American School in England is an independent, co-educational day and boarding school located on a 46-acre campus in Thorpe, Surrey. Situated 18 miles southwest of London, it offers education from Pre-Kindergarten through Grade 12. The school claims to nurture intellectual curiosity and aims to develop principled, open-minded, and compassionate members of a global community. It emphasizes an international learning experience with students from over 70 countries. TASIS England offers the American High School Diploma, Advanced Placement courses, and the International Baccalaureate Diploma.