

Thai Sikh International School
Founded 1985
Updated July 2026
Curriculum
Accreditations
Languages
TSI International School is a family-oriented British international school in Bangkok serving students aged 2-18 years. It is known for its diverse community of over 30 nationalities and its commitment to inquiry-based learning.
Curriculum
Term structure
Teaching approach
The school’s mission is to empower students as global citizens equipped with 21st-century skills, including collaboration, critical thinking, and digital literacy. Its educational approach is rooted in universal values such as integrity, empathy, and service, aiming to cultivate leadership and academic excellence within a diverse, safe, and caring environment.
Programmes
The school delivers the British Curriculum from Pre-Nursery through to Year 13. The secondary pathway includes Key Stage 3, the two-year Cambridge IGCSE programme in Years 10-11, and Key Stage 5, which offers A-Levels and the TSI Diploma. The curriculum emphasizes a broad range of subjects, including core requirements in English and Mathematics, alongside various options such as Psychology, Computer Science, and multiple languages.
Student support
Learning support
The school is committed to inclusive education and employs staff with expertise in Special Educational Needs (SEN) support. Leadership includes dedicated coordinators focused on ensuring classroom environments cater to the specific needs of all children.
Frequently asked questions(6)
- What curriculum does Thai Sikh International School offer?
- Thai Sikh International School offers National Curriculum (England) and IGCSE.
- How much is tuition at Thai Sikh International School?
- Annual tuition at Thai Sikh International School is THB 240K–THB 330K. Fees vary by year group — confirm the current schedule with the school.
- What ages does Thai Sikh International School teach?
- Thai Sikh International School enrolls students aged 2 to 18.
- Is Thai Sikh International School a day or boarding school?
- Thai Sikh International School is a day school.
- What accreditations does Thai Sikh International School hold?
- Thai Sikh International School holds accreditations including CIS.
- Where is Thai Sikh International School located?
- Thai Sikh International School is an international school in Bangkok, Thailand.
Tuition & fees
Annual tuition by grade
2026-27| Grade | Ages | Annual |
|---|---|---|
| 'Little Lions' | 2–3 | THB 240K |
| Nursery | 3–4 | THB 260K |
| Reception | 4–5 | THB 305K |
| Year 1 | 5–6 | THB 330K |
| Year 2 | 6–7 | THB 330K |
| Year 3 | 7–8 | THB 330K |
| Year 4 | 8–9 | THB 330K |
| Year 5 | 9–10 | THB 330K |
| Year 6 | 10–11 | THB 330K |
| Year 7 | 11–12 | THB 330K |
| Year 8 | 12–13 | THB 330K |
| Year 9 | 13–14 | THB 293K |
| Year 10 | 14–15 | THB 301K |
| Year 11 | 15–16 | THB 301K |
| Year 12 | 16–17 | THB 301K |
| Year 13 | 17–18 | THB 301K |
Other fees(9)
| Registration feeone-time· Admission Fee for Little Lions (promotional rate, standard is 125,000 THB) | THB 50K |
|---|---|
| Registration feeone-time· Admission Fee for Nursery - Year 6 (promotional rate, standard is 145,000 THB) | THB 90K |
| Registration feeone-time· Admission Fee for Years 7-11 (promotional rate, standard is 115,000 THB) | THB 50K |
| Registration feeone-time· Admission Fee for Years 12-13 (promotional rate, standard is 115,000 THB) | THB 30K |
| Depositone-time· Non-refundable deposit required to guarantee a student's place or promotion (also required for visa support) | THB 50K |
| Materialsannual· General Fee for Nursery to Year 8 (covers Food, Learning Resources, Accident Insurance, Field Trips & Special Events/Activities) | THB 46.5K |
| Materialsannual· General Fee for Years 9 to 13 (covers Learning Resources, Accident Insurance, Field Trips & Special Events/Activities & standardised assessments) | THB 6.5K |
| Materialsannual· Resources Fee for Year 9 | THB 9K |
| Materialsannual· Resources Fee for Year 10 and Year 12 | THB 12K |
Discounts
- Sibling discount: Family Discounts
Admissions
TSI International School accepts students aged 2-18 years. The process involves submitting an inquiry, arranging a campus tour, and completing age-appropriate pre-testing activities alongside a review of the student's three most recent school reports. Upon receiving an offer, parents must pay a non-refundable deposit to secure a place, followed by the submission of required documentation and payment of fees.
Calendar
The school follows a calendar typical of UK curriculum schools in Thailand, with the academic year commencing in mid-August and concluding in late June. Term dates are structured to align with this annual cycle.
Facilities
About the campus
TSI operates two campuses: the Wongwianyai Campus in Bangkok and the Bearing Campus in Samut Prakan. The Bearing Campus features a canteen managed by a local hotel providing healthy meal options, with microwave facilities available for students who bring food from home. The school also provides van services for student transportation.
Co-curriculars
The school offers an Extra-Curricular Activity (ECA) programme designed to complement the academic curriculum. Students may also participate in the Student Council and a House System, which foster leadership and community engagement. Additional opportunities include sports academies and various inter-school competitions.

- Mr. Graham LonieHead of School
Graham Lonie joined TSI in June 2017 and has held several key positions before becoming Head of School in 2025. He has worked at schools in Australia, England, and Thailand, and works across both the Bearing and Wongwianyai campuses.
Ms. Marlie HumanWongwianyai Primary School PrincipalMarlie Human was appointed Primary School Principal at the Wongwianyai Campus in January 2023. She joined TSI in 2019 as a classroom teacher and previously served as a Key Stage Coordinator, SEN Coordinator, and Deputy Principal. She holds a Bachelor of Education majoring in Psychology and a Post Graduate Diploma in Special Educational Needs Support.
Ms. Michelle CrowleyBearing Primary School PrincipalMichelle Crowley is the Founding Principal of the TSI Bearing Primary School. She has over 17 years of teaching experience, including a decade in leadership roles, having previously served as a principal at international schools in China, Egypt, and Saudi Arabia.
Mr. Adam ProbertSecondary School PrincipalAdam Probert has been an educator since 2004 and has held senior leadership positions at international schools in Macau and China since 2019. He holds an MBA in Leadership and Management and is currently working toward Chartered Teacher (Leadership) status.
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National Curriculum (England)
IGCSE
CIS