A close-knit British international school where every learner is known. Discover the people, the principles, and the everyday culture that shape life at TSI.
TSI is accredited by the Council of International Schools.
A clear, friendly journey from first enquiry to enrolment. Explore the process, plan a visit, and find the answers you need to take the next step.
See both campuses, meet the teachers, and ask the questions you need to ask.
A globally recognised British curriculum paired with holistic development in sport, the arts, and technology — preparing students for the world’s leading universities.
The universities our Sixth Form students have received offers from.
TSI Wongwianyai Campus has been carefully planned to offer an environment that is ideal for children aged 2-11 years to grow and learn together.
The team teaching children aged 2 to 11 at our Wongwianyai campus.
TSI International School is a thriving, family orientated British international school in Bangkok, Thailand, We are proud of our strong and increasingly diverse community (over 30 nationalities).
Sports facilities at the Bearing campus, from PE lessons to the Lions Sports Academy.
A close-knit British international school where every learner is known. Discover the people, the principles, and the everyday culture that shape life at TSI.
TSI is accredited by the Council of International Schools.
A clear, friendly journey from first enquiry to enrolment. Explore the process, plan a visit, and find the answers you need to take the next step.
See both campuses, meet the teachers, and ask the questions you need to ask.
A globally recognised British curriculum paired with holistic development in sport, the arts, and technology — preparing students for the world’s leading universities.
The universities our Sixth Form students have received offers from.
TSI Wongwianyai Campus has been carefully planned to offer an environment that is ideal for children aged 2-11 years to grow and learn together.
The team teaching children aged 2 to 11 at our Wongwianyai campus.
TSI International School is a thriving, family orientated British international school in Bangkok, Thailand, We are proud of our strong and increasingly diverse community (over 30 nationalities).
Sports facilities at the Bearing campus, from PE lessons to the Lions Sports Academy.
A British Curriculum, CIS Accredited, international school in Bangkok where every child, aged 2 to 18, is known by name.
Pre-Nursery → A-Level
CIS · Cambridge · AQA accredited
30+ Nationalities
Bangkok’s Hidden Gem
"TSI is Bangkok's hidden gem — a school where my child is genuinely known."
— A current TSI parent
TSI International School is a thriving, family-orientated British curriculum international school in Bangkok, Thailand. We are proud of our strong and increasingly diverse community of over 30 nationalities.
Well-qualified, highly-committed teachers use engaging, inquiry-based strategies to deliver the English National Curriculum to students aged 2–18, from Pre-Nursery through to A-Level. Our graduates achieve exceptional IGCSE and A-Level examination results and are offered places at universities around the world.
Two Campuses
Whichever side of the city you call home, your child grows up inside the same close-knit TSI community, with well-qualified teachers, the same standards, and the same family feel.
Primary & Secondary
Ages 2 – 18
Our original and rapidly expanding campus. Pre-Nursery through A-Level, set on over 30 rai (12 acres), with dedicated facilities for students of all ages.
Curriculum
TSI provides a complete British curriculum pathway, supporting students through every key stage within one supportive school community.
The Film
Hear from our teachers, students and parents — across both campuses, in their own words.
Executive Leadership Team
The TSI Executive Leadership Team have qualifications and experience that match the leaders of any world-class international school.
Our school’s recent CIS accreditation, together with significant renewal projects at both Bearing and Wongwianyai, reflect a clear commitment from our ELT and Board to give Bangkok families a genuinely unique option – high-quality education for reasonable fees.
Our ELT appoints well-qualified teachers who recognise and support the individual needs of every student. Our ELT is continually shaping a school that truly serves its families.
Our ELT welcomes the opportunity to meet new families personally. Welcome to TSI.
Accredited & affiliated with














Visit Us
Personal tours available year-round at both campuses. The best way to feel TSI is to walk through it.