ISS International School vs Nexus International School
🇸🇬 Singapore · Side-by-side comparison on verifiable public data.
Neither ISS International School nor Nexus International School sits in a market with a public inspectorate, so both are assessed on verifiable accreditation, curriculum authorisation, and published data rather than an official quality rating. Curriculum is the core differentiator: ISS International School offers IB, American while Nexus International School offers IB, British — the choice should follow the family's target qualification system. Both are day schools with fees in the same market band — see the table below for the figures, and verify against each school's own published fees.
Key Facts
| ISS International School | Nexus International School | |
|---|---|---|
| Curriculum | IB / American | IB / British |
| Ages | 4–18 | 3–18 |
| Languages of instruction | English | English |
| Annual fees | SGD 25,000–54,430 | from SGD 33,600 |
| Boarding | Day only | Day only |
| Accreditations | CIS, WASC, EARCOS, EduTrust, EAPISA | CIS, WASC, EduTrust |
Strengths
- ✓Full IB continuum (PYP + MYP + DP) under one roof — uncommon and verifiable
- ✓Long track record: established 1981, one of Singapore's older international schools
- ✓Strong, layered accreditation for a small school: WASC (1986), CIS (2011), EduTrust 4-year certificate (2023–2027)
- ✓Dual senior pathway — IB Diploma plus an American-style High School Diploma
- ✓Explicit EAL / multilingual-learner support and a Bilingual Diploma option
- ✓Full IB continuum (PYP → MYP → DP), an authorised IB World School across all three programmes
- ✓CIS-accredited (re-accredited 22 June 2022), providing independent quality assurance
- ✓Purpose-built Aljunied campus (opened Jan 2020), designed with teacher input, in a central MRT-accessible location
- ✓Strongly international community — 60+ nationalities and 44% of students bilingual (school-reported)
- ✓IGCSE bridge into the DP, giving a recognized externally-examined qualification at 16
Trade-offs
- !Small scale typically means fewer specialist facilities, sports teams and CCA breadth than large campuses (ISS joined EAPISA, an association for small international schools)
- !No published total enrollment figure, limiting transparency on cohort size
- !Fees are mid-to-high (senior grades exceed SGD 50,000/year before development and protection-scheme fees), without the facilities footprint of similarly-priced larger schools
- !No independent inspectorate rating published (EduTrust is a regulatory certification, not a graded inspection)
- !Published IB results (top score 43; 94% diploma rate) are school-reported and not independently verified
- !For-profit ownership under Taylor's Schools Group
- !High fees typical of Singapore IB schools — annual tuition from ~SGD 33,600 plus non-refundable initial fees; full per-year schedule not publicly extractable
- !Enrollment size not publicly disclosed
- !No published academic results — no IB Diploma average or A-Level data found publicly
- !Founding/heritage narrative is muddled across sources (2007 brand vs 2011 Singapore acquisition), so historical positioning should be treated cautiously
Best Fit For
- • Families wanting the full IB continuum (PYP→MYP→DP) with continuity across all stages
- • Students who thrive in small classes with close teacher attention and mentorship
- • Internationally mobile / expat families needing strong EAL support and a Bilingual Diploma route
- • Families wanting an IBDP alternative (the American-style High School Diploma) within the same school
- • Families wanting an uninterrupted IB pathway (PYP through DP) in one school
- • Internationally mobile families valuing a multi-national, English-medium environment
- • Families who prioritise a modern, purpose-built campus with central Singapore access
- • Students suited to inquiry-based IB pedagogy with an IGCSE checkpoint at 16
University Placement
School-reported · not independently verified
School-reported, unverified: ISS publishes a highest IB score of 43, a 94% IB Diploma attainment rate, an 88% Bilingual Diploma rate and a 100% HSD pass rate (2024–25). No independently published IB average or university-placement list was found.
School-reported, unverified: no IB Diploma average, pass rate or university-placement data was found published on official or reputable third-party sources at the time of research.
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Frequently Asked Questions
Should I choose ISS International School or Nexus International School?
ISS International School is best for: Families wanting the full IB continuum (PYP→MYP→DP) with continuity across all stages. Nexus International School is best for: Families wanting an uninterrupted IB pathway (PYP through DP) in one school. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between ISS International School and Nexus International School?
ISS International School: SGD 25,000–54,430. Nexus International School: from SGD 33,600. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do ISS International School and Nexus International School offer?
ISS International School: IB, American. Nexus International School: IB, British.
Do ISS International School or Nexus International School offer boarding?
ISS International School: day school only. Nexus International School: day school only.
This comparison is BrightKey's independent assessment using verifiable public data only. University-placement figures are school-reported and not independently verified. BrightKey takes no payments from schools. Our method →