International School · Day School · Through School (K-12)
ISE International School
Bangkok, Thailand
Last updated: Jun 20, 2026
ISE International School is a private, English-medium international school located in Bowin, Sriracha, Chonburi, Thailand, founded in 1994. It is the only American-style international school on Thailand's Eastern Seaboard, serving approximately 150 students from PreK3 through Grade 12 across 12 nationalities. The school is distinguished by its exceptional 5:1 student-to-teacher ratio and small average class sizes of around 10 students, ensuring highly individualised attention. ISE offers an American-based curriculum alongside the IB Diploma Programme and holds WASC accreditation, preparing graduates for universities worldwide.
- Curriculum
- British National Curriculum / IGCSE / A-Level
- Annual Tuition
- THB 357,600.00 - THB 646,000.00(2025-2026)≈ $10,658 - $19,254
Overview
ISE International School is an international UK National Curriculum, IGCSE, A-Levels school for ages 3–18 in Bangkok, Thailand. Founded in 1994. The language of instruction is English. Annual tuition: THB 357,600–THB 646,000.
At a Glance
IB Diploma program available — offers IB Diploma Programme alongside American curriculum at the upper school level
Small international community — ~150 students from 12 nationalities, with 70% international and 30% Thai enrollment
Assessment-based admissions — applicants age 7+ take CAT4 aptitude test, non-native speakers undergo EAL screening
Mid-range fees — THB 357,600–646,000 annually, plus THB 90,000 enrollment fee and THB 50,000 deposit for new students
Best for expat families prioritizing 5:1 student-teacher ratio and personalized attention in Thailand's Eastern Seaboard industrial zone
Tuition & Fees
Annual Tuition
THB 357,600.00 - THB 646,000.00(2025-2026)≈ $10,658 - $19,254
Application Fee
THB 5,000.00≈ $149
Deposit
THB 50,000.00≈ $1,490
Est. First Year Total
THB 701,000.00≈ $20,894
Tuition by Grade
| Grade | Annual Tuition | Application Fee | Deposit |
|---|---|---|---|
| Grade 12 / Year 13 | THB 646,000.00≈ $19,254 | - | - |
Approximate values based on ECB reference rates (Jul 13 – 17, 2026). Actual amounts may vary.
Scholarships & Financial Aid
3ISE Academic Merit Scholarship
Merit-BasedISE Sports Scholarship
SportsISE Arts Scholarship
ArtsCurriculum & Academics
Languages of Instruction
Languages of Instruction
Compulsory / Optional
Accreditations & Memberships
4 accreditationsAdmissions
Requirements
Early Years (PreK3–Kindergarten)
English Requirement: No English requirement
Application Fee: 5,000
Primary (Grade 1–Grade 6, age 7+)
English Requirement: Advanced English
Application Fee: 5,000
Secondary (Grade 7–Grade 12)
English Requirement: Advanced English
Interview Required (In-person)
Application Fee: 5,000
School Life
- Uniform
- Required
- Lunch
- School cafeteria available; students may purchase
Support & Wellbeing
Co-curricular Activities
11 activitiesTeam Sports(2)
Grades: Primary · Secondary
Individual Sports(1)
Academic Clubs(1)
Grades: Secondary
Service & Leadership(1)
School-specific(6)
Grades: Secondary
Facilities
13 facilitiesSports & Athletics(4)
Academic Facilities(3)
Arts & Performance(2)
Outdoor Spaces(1)
Dining(1)
Wellbeing(1)
School-specific(1)
Location & Access
Getting There
School Bus
School bus service available covering Sriracha and surrounding areas for students commuting to the Bowin campus.
Coverage Areas: Sriracha and surrounding Chonburi areas
Campuses
Main Campus
ISE International School – Bowin Campus
282 Moo 5, T. Bowin, Sriracha, Chonburi 20230, Thailand
Schoozy Insights
Personalised Education at the Heart of ISE's Mission
ISE International School's philosophy centres on cultivating higher-order thinking, communication and global responsibility through a uniquely low student-to-teacher ratio of 5:1.
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A Community-Centred Educational Philosophy
ISE International School was founded on a clear and enduring principle: that every student deserves individual attention, genuine care, and a challenging academic environment that prepares them for a globally connected world. The school's mission articulates this with precision — "to prepare international students for future success and lifelong learning by cultivating higher level thinking skills, effective communication and global responsibilities within a caring and supportive community."
At the practical heart of this philosophy is the school's exceptional 5:1 student-to-teacher ratio — one of the most favourable found in international schools anywhere in Southeast Asia. With average class sizes of approximately 10 students, ISE teachers are able to identify each student's individual learning needs, pace instruction accordingly, and build meaningful mentoring relationships that extend well beyond the classroom.
Standards-Based Learning
ISE implements a Standards-Based Grading model, in which student achievement is measured against specific subject-level standards rather than a single composite grade. This approach encourages growth mindset and ensures that academic feedback is actionable and transparent — students and parents always understand precisely what competencies have been demonstrated and what areas remain for development.
International Mindedness and Global Responsibility
With students from 12 nationalities and a curriculum that spans the American model through to the IB Diploma Programme, ISE cultivates genuine international mindedness. Programmes such as Model United Nations, the Global Issues Network (GIN), and CAS (Creativity, Action, Service) embed civic responsibility into the daily experience of secondary students. The school's location on Thailand's Eastern Seaboard — one of Southeast Asia's most economically dynamic corridors — further enriches the intercultural experience students bring to classroom discussions.
Supporting the Whole Child
Beyond academics, ISE's philosophy embraces the well-being and development of the whole student. EAL (English as an Additional Language) support is available to ensure that language barriers do not limit academic participation. Learning support is provided for students with mild to moderate needs. Merit scholarships in academics, sports and the arts signal the school's commitment to recognising excellence across all dimensions of student life.
This holistic, student-centred approach — combining rigorous academic standards with genuine pastoral warmth — is what distinguishes ISE from larger international schools in the Bangkok metropolitan area and makes it a compelling choice for expatriate families seeking a close-knit, high-support environment.
Thirty Years on Thailand's Eastern Seaboard: ISE's Growth Story
Founded in 1994 with 35 students to serve the industrial Eastern Seaboard region, ISE has grown to around 150 students and celebrated its 30th anniversary in 2024.
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Origins in an Industrial Boom
The International School Eastern Seaboard (ISE) opened its doors in 1994 — or according to some records as early as August 1993 — to meet the educational needs of expatriate families arriving in Thailand's Chonburi and Sriracha region. The Eastern Seaboard had been transformed through the 1980s and 1990s into one of Southeast Asia's most significant industrial and petrochemical corridors, attracting multinational corporations and their internationally mobile workforces. ISE was established specifically to serve these families, funded by northern Thai business interests and licensed by Thailand's Ministry of Education as a private institution under ISE Limited.
The school's first cohort numbered just 35 students — a testament to the pioneering spirit of those early families and educators who chose to build an international school from the ground up in what was then a relatively undeveloped area. The campus was positioned in Bowin, Sriracha, adjacent to the Burapha International Golf Course, providing a leafy, spacious environment distinct from the congestion of Bangkok.
Key Milestones
| Year | Milestone |
|---|---|
| 1994 | ISE founded; first students enrolled |
| 1997 | Secondary (high school) section established |
| 2003 | IB Diploma Programme introduced |
| 2014 | Fine Arts Center constructed |
| 2018 | 25th anniversary celebrations |
| 2024 | 30th anniversary; ~150 students enrolled |
Steady, Purposeful Growth
Over three decades, ISE has grown from 35 to approximately 150 students — intentionally modest growth that has preserved the school's defining characteristic: an intimate, family-like environment where every student is known by name. While many international schools in Thailand have expanded rapidly, ISE has maintained its focus on quality over quantity.
The addition of the IB Diploma Programme in 2003 was a pivotal moment, enabling ISE graduates to apply to universities worldwide with a universally recognised qualification. The construction of the Fine Arts Center in 2014 demonstrated the school's commitment to arts education, complementing the existing academic and athletic facilities.
Today, ISE stands as the only American-style international school on Thailand's Eastern Seaboard, holding WASC accreditation and memberships in EARCOS, ISAT and MRISA — a mature institution that has grown organically alongside the community it was created to serve.
A Multinational Microcosm: ISE's Diverse and Welcoming Community
With 12 nationalities across ~150 students, ISE fosters a genuinely international community where Korean, Japanese, Thai, and Western families learn and grow side by side.
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Who Studies at ISE?
ISE International School draws students from 12 nationalities, creating a rich multicultural tapestry within a deliberately small school setting. Approximately 70% of students are international (non-Thai), reflecting the school's deep roots in the expatriate community of Thailand's Eastern Seaboard industrial zone — home to major Japanese, Korean, and Western multinational presences.
The remaining 30% are Thai students, many from families seeking a high-quality English-medium education with genuine international exposure. This blend ensures that ISE students experience real cross-cultural exchange rather than a simulated international environment.
A School That Feels Like Home
A recurring theme in how ISE describes itself — and how third-party sources characterise it — is the word community. The school's own mission statement concludes with the phrase "within a caring and supportive community," and the International Schools Database describes ISE as a place "where everyone feels welcomed."
This is no accident. With only around 150 students across 14 year levels (PreK3 through Grade 12), every student is visible. Teachers know students by name, by interest, and by challenge. Parents are active participants in school life rather than distant observers.
Multilingual Offerings Reflecting the Community
ISE's language programme reflects the nationalities present in the school community. Beyond English as the language of instruction, the school offers:
- Thai — local language and cultural programme
- Japanese — catering to the significant Japanese expatriate population
- Korean — reflecting the large Korean corporate presence in the Sriracha area
- Spanish — traditional international school language offering
- Chinese (Mandarin) — growing in demand across Southeast Asia
This breadth of language provision means that few students arrive feeling entirely like linguistic outsiders, and all students benefit from hearing multiple languages spoken naturally around them.
Extracurricular Life and Social Integration
Community bonds are strengthened through a rich extracurricular programme. The National Honor Society (NHS), Model United Nations, Operation Smile, and the Global Issues Network all place community engagement at their core. Sports programmes in basketball, volleyball, golf, and tennis create shared experiences that cross grade levels and nationalities.
For families relocating to the Eastern Seaboard — whether from Seoul, Tokyo, Houston, or London — ISE offers not just a school but an instant social community for both children and parents navigating life abroad.
American Foundations, IB Excellence: ISE's Dual Curriculum Approach
ISE blends an American-style curriculum from PreK3 through Grade 10 with the full IB Diploma Programme in Grades 11–12, underpinned by Standards-Based Grading.
Read More
A Pathway from Nursery to University Readiness
ISE International School offers a coherent academic journey from PreK3 (age 3) through Grade 12 (age 18), structured around an American-based curriculum in the lower and middle school years and the internationally recognised IB Diploma Programme (IBDP) in Grades 11 and 12.
This dual-track approach gives students the best of both worlds: the breadth and rigour of an American education — familiar and transferable for students from North American backgrounds — combined with the intellectual depth and global recognition of the IB Diploma, which opens doors to universities across the UK, Europe, North America, Asia, and Australia.
Standards-Based Grading: A Modern Assessment Philosophy
Throughout the school, ISE employs Standards-Based Grading (SBG), in which each student's achievement is measured against clearly defined subject-specific learning standards. Unlike traditional percentage or letter-grade systems, SBG provides students and parents with precise, actionable feedback: rather than knowing that a student scored 72%, they know exactly which standards have been mastered and which require further work.
This approach aligns naturally with the IB's emphasis on holistic, criterion-based assessment in the Diploma years, creating a coherent assessment culture across all grade levels.
IB Diploma: Gateway to Global Universities
Since introducing the IBDP in 2003, ISE has prepared numerous graduates for universities in North America, the UK, Singapore, Australia, and beyond. The school celebrates its graduates' global university acceptances — destinations that span multiple continents — as evidence that an ISE education travels well.
The IBDP's CAS (Creativity, Action, Service) component is embedded in school life from Grade 11, requiring students to engage meaningfully with artistic endeavour, physical activity, and community service — reinforcing ISE's belief that academic excellence and personal character development are inseparable.
Small Classes, Deep Learning
With average class sizes of approximately 10 students and a 5:1 student-to-teacher ratio, ISE's academic culture is fundamentally shaped by intimacy and access. Students can ask questions without hesitation, teachers can identify misconceptions immediately, and learning conversations can go deep. This is a fundamentally different experience from the 20–30 student classes found in larger international schools, and it is arguably ISE's greatest academic differentiator.
Open-Door Admissions with Structured Support: How to Join ISE
ISE operates a rolling, flexible admissions process with no waitlist, using CAT4 testing and EAL screening to place students appropriately rather than to exclude them.
Read More
A Welcoming, Flexible Entry Process
One of ISE International School's most distinctive admissions characteristics is its open, non-selective approach. Unlike many international schools that operate long waitlists and highly competitive entry procedures, ISE actively welcomes students throughout the academic year and maintains no waitlist — a significant practical advantage for expatriate families who may receive relocation postings at short notice.
This flexibility is particularly valued by families arriving mid-year, who can sometimes find themselves locked out of popular schools in Bangkok or other major Thai cities. ISE's Eastern Seaboard location and rolling admissions policy make it a genuinely accessible option.
The Admissions Process Step by Step
While the process is welcoming, it is not without structure. Prospective families typically follow these steps:
- School visit / Open House — Families are encouraged to visit the campus, meet staff, and attend the annual Open House event (typically held in September).
- Application submission — The application form is submitted along with previous school records, a health certificate, and other standard documentation.
- Assessment — Students aged 7 and above sit the CAT4 (Cognitive Abilities Test, 4th Edition), a standardised assessment of reasoning ability used widely in international schools to understand a student's learning profile.
- EAL screening — Students whose English proficiency is below age-appropriate level undergo an EAL screening assessment to determine the level of English language support they will require.
- Interview (if needed) — An informal interview may be conducted for some students or year groups.
- Placement decision — Based on the above, a grade placement is confirmed and the student is welcomed into the school community.
Scholarship Opportunities
For academically, athletically, or artistically talented incoming students, ISE offers merit-based scholarships across three categories: academic excellence, sports, and arts. These are not widely advertised with specific values or quotas, but students must indicate their interest at the time of application. The scholarships reflect ISE's commitment to attracting and supporting talented learners regardless of financial circumstances.
Practical Information for New Families
- Application fee: 5,000 THB (non-refundable)
- Enrollment fee: 90,000 THB (new students only, non-refundable)
- Security deposit: 50,000 THB (refundable on departure)
- Total one-time costs: approximately 145,000 THB on top of annual tuition
- Annual tuition: 357,600 THB (FS1) to 646,000 THB (Grades 11–12)
- EAL support: Available at an additional fee (approximately 20% of families receive EAL support)
For relocating families, ISE represents a pragmatic, supportive entry point into international education in Thailand's Eastern Seaboard — with the reassurance that a place will be available when they need it.
About the School
- Established
- 1994
Frequently Asked Questions
What curriculum does ISE International School teach?
ISE International School offers UK National Curriculum, IGCSE and A-Levels.
How much is annual tuition at ISE International School?
Annual tuition at ISE International School ranges from THB 357,600 to THB 646,000 (THB), depending on the grade level.
What additional fees should I budget for at ISE International School?
In addition to tuition, ISE International School charges a registration fee of THB 5,000, deposit of THB 50,000.
Where is ISE International School located?
ISE International School is located in Bangkok, Thailand.
What ages does ISE International School accept?
ISE International School accepts students from age 3 to 18.
What is the student-teacher ratio at ISE International School?
The student-teacher ratio at ISE International School is 5:1.
Does ISE International School have a school bus?
Yes, ISE International School offers a school bus service. School bus service available covering Sriracha and surrounding areas for students commuting to the Bowin campus.
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Last updated: Jun 20, 2026
Sources: the school's official website, accreditation bodies (e.g. IBO, CIS), and public records.