
ISS International School is one of Singapore's oldest and most respected independent IB World Schools, founded in 1981 and offering the full IB continuum — Primary Years Programme (PYP), Middle Years Programme (MYP), and the IB Diploma — for students from Early Years through to Grade 12. Located near Queensway in central Singapore, ISS has built its reputation on small class sizes, individualised learning, and a genuinely international school culture.
Unlike some of Singapore's larger international schools, ISS prides itself on a smaller, more family-oriented community of around 800 students from over 50 nationalities. The school's approach is rooted in IB philosophy — inquiry-based, conceptual, and internationally minded — and the programme is delivered by an experienced international faculty. Students and parents consistently highlight the quality of pastoral care and the school's ability to support students through international transitions.
ISS holds CIS accreditation and IB World School status at all three programme levels. The school is located in the Queensway/Alexandra area, with easy access from the Queensway MRT station. IB Diploma results are consistently strong, with graduates accepted at leading universities in the UK, USA, Europe, and Asia. ISS is an excellent choice for globally mobile families seeking a smaller, nurturing community without sacrificing academic quality.
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