International School Haarlem

What International School Haarlem does

International School Haarlem (ISH) is a private, non-profit international school operating across three campus locations in Haarlem, the Netherlands, serving approximately 66 staff and delivering education to children aged 4-18. Founded in September 2017 and owned by Stichting Twijs — a Dutch educational foundation with Christian and Catholic identity that manages 34 schools and 8,000+ children across five municipalities — ISH is the international arm of the TWijs portfolio. The school is authorized as an IB World School and offers four interconnected programmes: an Early Years and Primary Years pathway (ages 4-11) built on the UK EYFS framework, British National Curriculum for English and Mathematics, and the International Primary Curriculum (IPC); the IB Middle Years Programme (MYP, ages 11-16); the IB Diploma Programme (DP, ages 16-18); and the IB Career-related Programme (CP, ages 16-18), which combines BTEC Pearson business studies with IB diploma courses.

The school's technology stack is conventional education software rather than proprietary platform technology: ManageBac handles attendance, scheduling, and academic management; OpenApply processes admissions and school-visit bookings; Oxford Reading Tree supports primary literacy; and the IPC, IB, and British National Curriculum frameworks define academic content. Supporting services include dedicated ISH Libraries (multi-language, fiction/non-fiction, IT lending), specialized EAL (English as Additional Language) instruction, an Inclusion/Learning Support team, Academic Counselling and university preparation for MYP5-DP2, and an extra-curricular programme (MUN, Olympic Moves, residential trips). Childcare is delivered through a third-party partner, Op Stoom, providing Sunrise Club and after-school care with inter-site transport.

ISH operates as a Dutch International School (DIS), meaning it is acknowledged and partially funded by the Dutch Ministry of Education, Culture and Science — a designation that ties eligibility to nationality (non-Dutch with a working parent in the Netherlands) or to Dutch nationals with prior international school experience abroad. Revenue is generated through published annual tuition fee agreements (Primary and Secondary fee schedules for 2026-2027 are referenced on the website) supplemented by government subsidy for qualifying students. Go-to-market is direct-to-family with appointment-only school visits (2-3 week average booking lag), OpenApply pre-applications, and participation in the Dutch International Schools network. No revenue figures are publicly disclosed.

Name

International School Haarlem

Legal name

Stichting Twijs

Website

https://internationalschoolhaarlem.nl

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

51–100 employees

Short description

International School Haarlem is a non-profit IB World School in Haarlem, Netherlands, serving international families with children aged 4-18 through Primary, MYP, DP, and CP programmes, operated by Stichting Twijs foundation.

Ownership category

akta.pro rank

Product category

International Primary and Secondary Education

NAICS

Elementary and Secondary Schools (6111), Elementary and Secondary Schools (611110)

SIC

Services-Educational Services (8200)

akta.pro primary industry

International/Global Curriculum Schools (IB, Cambridge, etc.) (EDAJABAG)

akta.pro secondary industry

International Curriculum Early Learning Academies (e.g., IB Early Years) (EDACADAK)

Keywords

• International primary education
• IB diploma programme
• Middle years programme
• International school tuition
• Primary school curriculum

Headquarters

HQ city

Haarlem

HQ country

Netherlands

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Tuition and School Fees: School fees are charged according to published fee agreements. DIS schools are acknowledged and funded by the Dutch Ministry of Education, Culture and Science, which may affect fee structures.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

International School Haarlem delivers international primary and secondary education for students aged 4-18 through four interconnected programmes: the Primary Years Programme (ages 4-11) using the British National Curriculum and International Primary Curriculum (IPC); the IB Middle Years Programme (MYP, ages 11-16); the IB Diploma Programme (DP, ages 16-18); and the IB Career-Related Programme (CP, ages 16-18) with BTEC Pearson business studies. The school supplements these academic programmes with libraries, academic counselling, inclusion and EAL support, and an extra-curricular programme, operating across three campuses in Haarlem, Netherlands.

Product overview

International School Haarlem is an IB World School offering a comprehensive international education through four interconnected programmes: the Primary Years Programme (ages 4-11) using the British National Curriculum and International Primary Curriculum (IPC); the Middle Years Programme (MYP, ages 11-16) providing rigorous secondary education; the Diploma Programme (DP, ages 16-18) for pre-university studies; and the Career-Related Programme (CP, ages 16-18) combining business studies with IB courses. The school supplements these core academic programmes with supporting services including libraries, academic counselling, inclusion/Learning Support, EAL instruction, and a diverse extra-curricular programme. Childcare is provided through an external partner, Op Stoom.

Differentiator

Problem solved

Functional benefit

Products and services

• Early Years Programme (ages 4-5) Play-based learning for children aged 4-5 using the UK Early Years Foundation Stage (EYFS) curriculum, covering personal development, communication, physical development, literacy, mathematics, and understanding of the world.
• Primary Years Programme (ages 5-11) Primary education using the British National Curriculum for English and Mathematics, combined with the International Primary Curriculum (IPC) framework for thematic, multidisciplinary learning across history, geography, science, ICT, design, art, PE, and music.
• Middle Years Programme (MYP) (ages 11-16) IB-authorized secondary curriculum for ages 11-16 offering subjects including maths, science, PHE, I&S, English, design, Dutch, music, drama, and foreign languages (Spanish/French). Culminates in the Personal Project.
• Diploma Programme (DP) (ages 16-18) IB Diploma Programme offering six subject groups (languages, sciences, mathematics, humanities, arts), Theory of Knowledge, Extended Essay, and CAS experiences. Subjects available at Standard and Higher levels including English, Dutch, Spanish, French, History, Business Management, Economics, Psychology, Physics, Chemistry, Biology, ESS, and Visual Arts.
• Career-Related Programme (CP) (ages 16-18) IB career-related programme combining Business studies (via BTEC Pearson), three Diploma Programme courses, and the career-related core (personal/professional skills, reflective project, community engagement, language studies). Includes work experience components.
• ISH Libraries School libraries at primary and secondary locations offering fiction, non-fiction, magazines, online resources (scientific articles, encyclopedias), IT equipment (printers, iPads, cameras, Chromebooks), and research support. Collection includes materials in multiple languages representing the international student population.
• Academic Counselling / Next Steps Programme University preparation and career guidance programme for MYP5, DP1, and DP2 students. Includes university visits, Go-Abroad Fair attendance, application support, reference letters, transcripts, and predicted grades.
• Extra Curricular Programme Activities including residential trips, team building exercises, International Days, Building Social Justice Days, Model United Nations (MUN), Olympic Moves sports competitions, and after-school clubs.
• Inclusion and Learning Support Inclusive education services including differentiated learning, neurodiversity support, 1-to-1 and small group interventions, EAL (English as Additional Language) lessons, and specialized teaching assistants for students with learning difficulties or disabilities.
• International Childcare by Op Stoom External childcare provider offering after-school club (until 18:30), before-school Sunrise Club (from 07:30), holiday care, and daycare services. Located at Rutherfordstraat 4 and Schreveliusstraat. Includes transport between school sites.

Named customers1 record

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability1 record

Feature2 records

Partnerships

Seven partnerships are on record, tiered core and supporting.

• TWijscoreOthersTWijs is the parent organization managing International School Haarlem along with 33 other schools. TWijs stands for 'Ten Thousand children world wise' and operates schools across Bloemendaal, Haarlem, Haarlemmermeer, Heemstede, and Zandvoort municipalities serving more than 8000 children.
• International Primary Curriculum (IPC)coreStrategic or Co-development PartnerISH uses the IPC framework for Primary Years education, providing thematic, multi-disciplinary approach to learning including History, Geography, Science, ICT, Design, Art, Music, and Physical Education.
• BTEC PearsoncoreTechnology or IntegrationBTEC Pearson provides the career-related study component for ISH's Career-Related Programme. Business studies are delivered with BTEC Pearson qualifications including Exploring Business, Business Finance, Business Ethics, Marketing, and Management units.
• Oxford Reading TreesupportingTechnology or IntegrationOxford Reading Tree system is used in Primary to encourage literacy development throughout the school journey.
• International Baccalaureate (IB)coreStrategic or Co-development PartnerISH is authorized as an IB World School offering the MYP, DP, and CP programmes. The IB organization sets curriculum standards and authorizes member schools.
• Op StoomsupportingChannel Partner/ Reseller/ DistributorOp Stoom provides international childcare services for ISH students including after school club and before school care (Sunrise Club). Located at Rutherfordstraat 4, 2014 KA Haarlem, with Sunrise Club based at Upper Primary location.
• Dutch Ministry of Education, Culture and SciencecoreStrategic or Co-development PartnerDIS (Dutch International Schools) are acknowledged and funded by the Ministry of Education, Culture and Science. This funding affects admission requirements and school fee structures.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• The British School of Amsterdam: Non-profit school in Amsterdam combining British National Curriculum with IB DP. Closely comparable to ISH's blended British/IB approach and similar international-family customer base in the Randstad.
• Amsterdam International Community School (AICS): IB World School in the greater Amsterdam area offering PYP, MYP, and DP to international families. Most directly comparable to ISH given shared IB pipeline, Dutch DIS network membership, and similar international-family target market in the Randstad.
• International School Hilversum: IB World School in Hilversum ('t Gooi region) serving international and Dutch families. Comparable to ISH in scale, programme mix (IB), and its position as a regional international school outside Amsterdam's core.
• International School of Amsterdam (ISA): Long-established IB World School in Amsterdam offering a full IB continuum from Primary through DP. Directly comparable as an English-language international school serving expat families in the same Dutch labor market.
• The International School of The Hague: Primary and Secondary IB World School serving the international community in The Hague. Directly comparable in programme scope, DIS-equivalent status, and target families.

Broad incumbents

• United World College Maastricht: IB DP-focused school with strong international and boarding component. Comparable on the DP side of ISH's offering but operates as a larger, more internationally branded institution in a different Dutch city.
• Nord Anglia International School Rotterdam: For-profit international school operator running an IB continuum in Rotterdam. Comparable on curriculum (IB) and target families but backed by a global operator with broader resources than ISH.

Regional players

• International School Utrecht: IB World School in Utrecht offering Primary and Secondary IB programmes to international families. Comparable to ISH in programme architecture and target market, but in a different Dutch city.

Others

• Dutch International Schools (DIS) network: Umbrella organization of Dutch International Schools, of which ISH is a member. Comparable as an ecosystem/peer group rather than a direct competitor; useful for benchmarking funding, policy, and programme standards.
• Stichting TWijs: Parent foundation managing ISH alongside 33 other schools. Not a competitor but the directly comparable operating entity for benchmarking scale (8,000+ children), governance, and shared-services economics.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/school/international-school-haarlem

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about International School Haarlem