Concordian International School Bangkok (Concordian)
Key Stats
Annual Fees: US$18K – US$28K
Curriculum: IB
Age Range: 2–18
Students: ~900
Location: Samut Prakan, Bangkok
Updated February 2026
In Brief
Concordian International School Bangkok is a trilingual IB World School founded in 2001, serving 1,000 students with English-Mandarin immersion in early years transitioning to English-dominant instruction from Grade 5. With fees starting at THB 608,200 and multiple international accreditations, it positions itself as Thailand's only fully trilingual IB continuum school.
Founded in 2001 in Bangkok's Bangna district, CIS operates as Thailand's only fully trilingual international school delivering the complete IB continuum from Pre-K through Grade 12. The school serves approximately 1,000 students aged 2-18 with a distinctive language progression that begins with English-Mandarin immersion in Early Years and Primary levels, then shifts to English-dominant instruction from Grade 5 while maintaining Thai language integration throughout. This trilingual approach distinguishes it from other Bangkok international schools that typically focus on bilingual education.
The 250-member teaching staff delivers IB Primary Years Programme through Grade 5, Middle Years Programme for Grades 6-10, and Diploma Programme in the final two years. Located on Bangna-Trad Highway, the campus serves a diverse international community while maintaining strong accreditation from the International Baccalaureate Organization, New England Association of Schools and Colleges, and Council of International Schools. The school's membership in regional organizations like ISAT and EARCOS reflects its integration within Southeast Asia's international education network.
What parents value
- –Thailand's only fully trilingual IB school with English-Mandarin-Thai integration
- –Complete IB continuum from Pre-K through Diploma Programme
- –Strong international accreditation from IBO, NEASC, and CIS
- –Two decades of educational experience since 2001 founding
- –Substantial 1,000-student community with 250 teaching staff
Points of consideration
- –Limited public information about specific IB results or university placement outcomes
- –Annual fees starting at THB 608,200 with higher levels not publicly disclosed
- –Language-intensive program may not suit all families' educational preferences
- –Bangna location requires consideration of Bangkok traffic patterns for daily commuting
Annual Fees
| Year Group | Age | USDTotal Annual Fee |
|---|---|---|
| Pre K - Kindergarten 1 | 3 | 19,544 |
| Kindergarten 2 | 4 | 21,728 |
| Kindergarten 3 | 5 | 23,400 |
| Grade 1 - 2 | 6 | 24,766 |
| Grade 3 - 5 | 8 | 24,766 |
| Grade 6 - 10 | 11 | 27,387 |
| Grade 11 - 12 | 16 | 30,058 |
Fees converted from THB. For the most up to date and accurate figures please double check with the school.
Additional Fees
| Fee | Amount |
|---|---|
| Application Fee | 125 |
| Assessment Fee | 94 |
| Entrance Fee (1st Child) | 7,800 |
| Entrance Fee (2nd Child/subsequent) | 5,850 |
| Capital Fund (refundable) | 12,480 |
| Damage Deposit (refundable) | 312 |
| PTA Membership (annual) | 31 |
Photos
Academic Results
IB Diploma Results (Class of 2025): School Average Score: 36 points (World average: 30.58) Pass Rate: 100% IB Diploma Results (Class of 2024): School Average Score: 36 points (World average: 30.3) Students scoring 40+ points: 11 students University Destinations (2025 Highlights): UK: University College London (UCL), King's College London, University of Edinburgh, University of Manchester, University of Warwick, University of Bristol. USA: Georgia Institute of Technology, Boston University, Northeastern University, University of Wisconsin–Madison, University of California (Davis, Irvine, San Diego, Santa Barbara). Canada: University of Toronto, University of British Columbia, McGill University.
Extra Curriculars
Sports: Football, basketball, volleyball, swimming, golf, table tennis, badminton, tennis, squash, weight training, yoga, Shaolin Kung Fu. Competes in AISAA Sports League. Arts & Music: Choir, school band, piano, violin, drama, Thai dance, clay works, ballet, jazz/K-pop dance.
Campus Size: Not published (total acreage). Swimming Pools: 6-lane covered 50m pool, 6-lane 25m pool, and a separate wading pool for young students. Sports Halls: 3 large air-conditioned rubberized gymnasiums (accommodating 3 indoor basketball courts, 5 badminton courts, 4 indoor football courts, and 4 volleyball courts).
Inspections & Accreditations
Inspection
- Thai MoE registered private school regulations, Thai Director appointed
- Not publicly listed.
Accreditations
- IB PYP/MYP/DP, CIS, NEASC
- Not publicly listed.
Memberships
- ISAT, EARCOS, CIS member
- Not publicly listed.
Student Body
Total Enrolment: Approximately 1,100 students. Number of Nationalities: Over 10; approximately 80% are Thai, with others including American, Australian, Canadian, Chinese, Dutch, French, Israeli, Japanese, Korean, and Malaysian. Student-Teacher Ratio: 8:1.
Leadership
Laurent Goetschmann - Head of School / CEO
Swiss educator Laurent Goetschmann serves as Head of School and CEO at Concordian International School Bangkok.
