The British International School of New York vs International School of Brooklyn
🇺🇸 New York · Side-by-side comparison on verifiable public data.
Neither The British International School of New York nor International School of Brooklyn 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: The British International School of New York offers British, IB while International School of Brooklyn offers IB, Blended — 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
| The British International School of New York | International School of Brooklyn | |
|---|---|---|
| Curriculum | British / IB | IB / Blended |
| Ages | 3–18 | 3–14 |
| Languages of instruction | English | English, French, Spanish |
| Annual fees | USD 45,600–67,800 | USD 40,206–52,537 |
| Enrollment | — | 386 |
| Boarding | Day only | Day only |
| Accreditations | COBIS, ISI | NYSAIS, AEFE, Mission Laïque Française, Spanish Ministry of Education |
Strengths
- ✓Established since 2006 with a genuine British/Cambridge identity in the heart of Manhattan (Kips Bay, on the East River)
- ✓Accredited by COBIS and authorized as an IB World School (PYP + MYP), plus a Good Schools Guide International listing
- ✓Documented EAL/English-language support from Nursery through Year 9 (small-group pull-out and in-class) — strong fit for non-native English families
- ✓Small, personal scale: school-reported ~1:7 ratio and classes of roughly 14–18, students 'known by name'
- ✓Full continuous 3-to-18 pathway on one campus, with rolling/mid-year admissions
- ✓Genuine dual-language immersion — a single French OR Spanish track from Pre-K, with a transparent, published target-language ratio by grade (100%→90%→75%→50%)
- ✓IB World School authorized for BOTH the PYP (Pre-K 3–Grade 5) and MYP (6th–8th) — a continuous IB framework across the whole Pre-K–8 span
- ✓Faculty teach in their native language (school-reported), reinforcing authentic linguistic and cultural fluency
- ✓Documented language and learning support — an English Language Coordinator, extra support for English/French/Spanish acquirers, and grade-band Learning Specialists
- ✓A third language is introduced in Grade 6, extending the multilingual model into Middle School
Trade-offs
- !Does NOT offer the IB Diploma — IB authorization covers PYP and MYP only, and the Upper School switches to Cambridge A Levels, so the 'IB' framing is a lower/middle-years method, not a Diploma outcome
- !No published IGCSE or A-Level results — academic outcomes cannot be independently verified
- !The ISI inspection on file dates to 2010 and no graded verdict is quoted; COBIS/IB give accreditation but not a public quality band
- !Relatively young Upper School (first Year 10 in 2018, first graduates 2021) — limited senior-school track record
- !No financial aid or scholarships are advertised, against premium fees (up to ~$67,800/year plus one-time enrollment and deposit costs)
- !Ends at Grade 8 — there is NO high school, no IB Diploma, and no secondary-exit credential; families must transfer for grades 9–12
- !Because it is Pre-K–8, there are no exit-exam results or university-placement data at all — outcomes must be judged on programme quality, not graduating results
- !Does NOT hold US regional accreditation (CIS or MSA); quality assurance runs through NYSAIS and the IB plus French/Spanish national networks
- !Immersion entry is language-gated in the upper primary years — applicants to Grades 1–5 must already speak, read and write French or Spanish at grade level
- !Premium Brooklyn day-school fees (up to $52,537 for Grades 6–8 in 2026–27), plus a $5,000 deposit and ancillary charges; day school only, no boarding
Best Fit For
- • Families in or relocating to New York wanting a British/Cambridge (English National Curriculum → IGCSE → A-Level) pathway
- • Internationally mobile or non-native-English families who need structured EAL support in the early and middle years
- • Families valuing a small, personal school with a continuous 3-to-18 pathway on a single campus
- • Households comfortable with premium fees who don't require financial aid
- • Families in Brooklyn seeking authentic French OR Spanish dual-language immersion from the early years within an IB framework
- • Internationally mobile or heritage-language families wanting bridges into the French (AEFE/Mlf) or Spanish education systems
- • Households prioritising a strong bilingual Pre-K-through-Grade-8 foundation and comfortable transferring for high school
- • Families who may need substantial need-based financial aid (a real, funded programme reaching about a third of students)
University Placement
School-reported · not independently verified
School-reported, unverified: BIS-NY publishes a university-destinations list (updated April 2025) spanning graduates since its first class in 2021, including UK (Imperial, UCL, Edinburgh, Bristol, Warwick), US (Cornell, NYU, Northwestern, UC system, CUNY/SUNY), Canada (McGill, McMaster) and Europe (Leiden, Maastricht) institutions, and states the Class of 2025 amassed 'over $2,000,000' in merit scholarships. No exam pass rates or A-Level score distributions are published; treat all placement and scholarship claims as school-reported.
Not applicable / not published. ISB is a Pre-K 3–8th Grade school with no high school, so there are no graduating cohorts, exit-exam results, or university destinations to report. Families should assess ISB on its early- and middle-years programme rather than on secondary outcomes, and plan a transfer for grades 9–12.
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Frequently Asked Questions
Should I choose The British International School of New York or International School of Brooklyn?
The British International School of New York is best for: Families in or relocating to New York wanting a British/Cambridge (English National Curriculum → IGCSE → A-Level) pathway. International School of Brooklyn is best for: Families in Brooklyn seeking authentic French OR Spanish dual-language immersion from the early years within an IB framework. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between The British International School of New York and International School of Brooklyn?
The British International School of New York: USD 45,600–67,800. International School of Brooklyn: USD 40,206–52,537. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do The British International School of New York and International School of Brooklyn offer?
The British International School of New York: British, IB. International School of Brooklyn: IB, Blended.
Do The British International School of New York or International School of Brooklyn offer boarding?
The British International School of New York: day school only. International School of Brooklyn: day school only.
Questions parents ask
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 →