Siam Singapore International School (SSIS)
Key Stats
Annual Fees: US$14K – US$14K
Curriculum: British · Singaporean
Age Range: 2–16
Students: 300
Location: Bangkok
Updated February 2026
In Brief
Siam Singapore International School Bangkok (SISB) operates multiple campuses in Thailand offering British and Singaporean curricula, but faces significant criticism from teachers and parents regarding management practices, high staff turnover, and educational quality. While the school network has grown financially successful, extensive negative feedback suggests serious concerns about working conditions and academic standards.
SISB runs several campuses across Thailand including Bangkok locations, following British curriculum pathways alongside elements of Singaporean educational approaches. The school positions itself as providing international education with Asian values, though it operates independently from Singapore's Ministry of Education without official recognition from Singaporean authorities. Recent promotional materials highlight special enrollment offers for Thai students with tuition fee discounts, suggesting the school targets local families seeking international credentials.
Teacher discussions reveal troubling patterns across SISB campuses, with reports of micromanagement, poor working conditions, and extremely high staff turnover rates. Multiple educators describe toxic workplace environments, inadequate support systems, and management practices that prioritize profit over educational quality. The school requires teachers to work extended hours including mandatory Saturday sessions, uses fingerprint scanners to monitor attendance, and provides fewer holidays than typical international schools. Former staff particularly criticize the school's demanding end-of-year concert preparations that extend well into June, with one teacher noting that both students and educators dislike these events but management insists on elaborate productions.
What parents value
- –Multiple campus locations across Thailand provide accessibility for families
- –Offers British curriculum pathways for international qualifications
- –Some flexibility in lesson planning and content selection reported by teachers
- –Financial stability and growth as an educational network
- –Special enrollment promotions available for Thai students
Points of consideration
- –Extensive negative feedback from teachers regarding management practices and workplace culture
- –High staff turnover rates suggesting systemic issues with employee satisfaction
- –Not officially recognized by Singapore's Ministry of Education despite 'Singapore' branding
- –Reports of micromanagement including fingerprint attendance monitoring
- –Mandatory weekend work and extended school year requirements
- –Mixed reviews on educational quality and student outcomes
- –Limited holiday time compared to other international schools
- –Concerns about for-profit focus potentially compromising educational standards
Annual Fees
| Year Group | Age | USDTotal Annual Fee |
|---|---|---|
| All grades | 2–16 | 15,288 |
Fees converted from THB. For the most up to date and accurate figures please double check with the school.
Photos

Academic Results
Academic results have not been made publicly available by this school.
Extra Curriculars
Contact the school for details on co-curricular activities and facilities. Ask what a normal week looks like outside lessons for your child's interests.
Inspections & Accreditations
Inspection
No published inspection details are currently available.
Accreditations
Accreditation details are not publicly listed.
Memberships
Membership details are not publicly listed.
Student Body
Bangkok's international schools serve a diverse community of expat and local families. Contact the school for current enrolment details.
Leadership
Ms. Christina Chan - Principal
Ms. Christina Chan serves as the Principal of Siam Singapore International School Bangkok.
