TSI International School

TSI International School has been educating students since 1985 and was one of the first registered international schools in Bangkok. TSI is a non-profit school governed by a charitable foundation. In 2017, the school began a renewal process with new management and a complete review of our Values and Guiding Statements.  Since then, the school has gone from strength to strength.  We continue to experience a significant increase in enrolments as our reputation for providing world-class international schooling continues to grow. In August 2025, we opened our second primary school at our spacious Bearing Campus (previously a secondary school only).

We have moved on from a ‘renewal’ phase and are now firmly entrenched in school improvement and working towards fully accredited status with CIS. In November 2024, we had Council of International Schools (CIS) evaluators visit both school campuses as a part of their Preparatory Evaluation report. One evaluator posted the following on LinkedIn after the visit:

“My colleague and I spent the week getting to know so many of the dedicated and supportive educators and administrators, as well as the students and parents of this thriving learning community. Truly future-focused learning and teaching was witnessed during our time there.”

They also noted the TSI team was “confidently moving the school forward into its next phase of development.”

Aside from the package, why should you join TSI International School?

We believe this about working at our school:

• Our school fosters a positive team culture and maintains an open-door policy.

• Executive Leaders welcome new initiatives and are committed to driving school improvement.

• Teachers are encouraged to take initiative and be creative in their teaching methodologies.

• We prioritise maintaining a supportive and collaborative work environment.

• Incredibly strong sense of community and an increasingly diverse mix of nationalities (32 in October 2025).

TSI International School is a thriving, family-orientated school. We employ highly committed, western-qualified teachers who facilitate learning founded on the English National Curriculum using engaging inquiry-based teaching strategies.

Our Campuses:

TSI Wongwianyai Campus is our original primary school offering an ideal environment for children aged 2-11 years to grow and learn together. It is equipped with academic, sporting and other extracurricular facilities that outshine many other international schools in the area. In addition to spacious classrooms, facilities incorporated in the design of the four-storey building include an assembly hall, air-conditioned gymnasium and dining hall. First-time visitors to the school are impressed by its beautiful, grassed playground and swimming pools.

TSI Bearing Campus is now the home of our secondary school PLUS our second primary school which opened in August 2025. TSI Bearing now offers families a one campus option for learners aged 2-18 years.  The 8 acres site offers very generous outdoor sports facilities, a huge Gymnasium, two swimming pools and modern classroom learning environments. Our secondary school students have achieved excellent IGCSE and A-Level exam results in recent years and are now studying at universities all around the world.  The new primary school is modern, safe and functional. It was carefully designed to meet the developmental needs of children as they pass through the first three Key Stages of the UK curriculum. The new primary school incorporates specialist learning areas for STEAM, ICT, the Arts and Languages. The centre courtyard is an area for play, an area for outdoor learning, an area for community. Behind the school there is a spacious, natural playground.