Jan Arentsz

What Jan Arentsz does

Jan Arentsz (CSG Jan Arentsz) is a Dutch secondary school operating two campuses in Alkmaar (Mandenmakerstraat 11) and Zuid-Scharwoude/Langedijk (Bosgroet 14), serving students aged approximately 12-18 from Alkmaar, Dijk en Waard, Bergen, and Heiloo municipalities. Founded in 1951-1952 as Christelijk Lyceum Alkmaar and rebranded in 2016 around a "perspective-based" Christian identity, the school offers the full vertical of Dutch secondary education: vmbo (basis/kader, kader/tl, tl), havo, atheneum, gymnasium, and a technasium havo/vwo track that anchors curriculum differentiation. The school also operates a Doorstroomklas in partnership with Heliomare for transitional support, an ISK/Taalklas for newly arrived non-Dutch-speaking students, and participates as an academic training school (AOS) within the AONHW network of 16 secondary schools and 6 teacher training institutes.

The technology stack is conventional educational IT: a Microsoft 365/Azure environment with Windows laptops managed via Microsoft Intune, the Magister student information system for attendance, grades, and parent communication, WIS Collect for parent contribution collection, Mijnleermiddelen.nl for textbook logistics, and a SharePoint-based staff/student portal. Laptops are sourced through a partnership with Rent Company, which offers a JA-branded webshop with pre-configured devices and an Easy4u service tier. The school also operates a student association (JaNadebel) with multiple activity commissions.

Jan Arentsz is a non-profit (ANBI-status) foundation operating under Stichting Christelijk Voortgezet Onderwijs Alkmaar en omstreken, with revenue primarily from Dutch government education funding (per-student allocation) supplemented by a voluntary parent contribution of €105 per student per year for extracurricular activities. Textbooks are provided free of charge. There is no equity, no parent company, and no private capital; governance is via a Raad van Toezicht (Supervisory Board) and College van Bestuur (Board of Directors), with Eugène Kramer as bestuurder since January 1, 2026. Direct enrollment is the sole go-to-market motion, executed through open days, information evenings, primary school partnerships, and the school's website.

Name

Jan Arentsz

Legal name

Stichting Christelijk Voortgezet Onderwijs Alkmaar en omstreken

Website

https://www.ja.nl

Company type

Private

Operating status

Operating

Short description

Jan Arentsz is a Dutch non-profit secondary school (ANBI foundation) operating two campuses in Alkmaar and Langedijk, offering vmbo, havo, atheneum, gymnasium, and technasium tracks to students aged 12-18 across the North Kennemerland region, funded primarily by Dutch government per-student allocations.

Ownership category

akta.pro rank

Headquarters

HQ city

Alkmaar

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Others

Revenue model

1. Government Education Funding: Jan Arentsz is a publicly funded educational institution receiving government funding for providing secondary education. The school operates under Stichting Christelijk Voortgezet Onderwijs Alkmaar en omstreken, registered as an ANBI (algemeen nut beogende instelling - public benefit institution).
2. Voluntary Parent Contribution: The school collects a voluntary parent contribution of €105 for extra activities including excursions, introductory activities, year-end celebrations, and festivities. Participation in activities is guaranteed regardless of payment.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Jan Arentsz is a Christian secondary school providing comprehensive education for students aged 12-18 across multiple tracks including vmbo (basis/kader, kader/tl, tl), havo, atheneum, gymnasium, and technasium (havo/vwo). The school operates two physical campuses in Alkmaar and Langedijk (Zuid-Scharwoude), delivering both mainstream Dutch secondary education and specialized programs such as the Doorstroomklas transition class for students needing additional support and Taalklas/ISK for newly arrived non-Dutch-speaking students.

Product overview

Jan Arentsz (CSG Jan Arentsz) is a broad Christian secondary school community with two locations (Alkmaar and Langedijk) offering a unified educational portfolio spanning multiple tracks: vmbo (basis/kader, kader/tl, tl), havo, atheneum, gymnasium, and technasium (havo/vwo). At the Langedijk location, a Doorstroomklas (transition class) operates in partnership with Heliomare for students needing additional support. The school functions as an academic training school (academische opleidingsschool) for teacher education and uses Magister as its primary digital student information and learning management platform. Technology provision includes a mandatory Windows laptop program managed via Microsoft Intune, with Rent Company as the recommended hardware supplier. The school's digital ecosystem also includes WIS Collect for financial administration, SharePoint for staff/student portals, and Mijnleermiddelen.nl for textbook management.

Differentiator

Problem solved

Functional benefit

Products and services

• General Secondary Education (atheneum, havo, gymnasium) General secondary education tracks (atheneum, havo, gymnasium) offered at the Alkmaar location, with one-year bridge classes available for transitions between tracks. The school also offers a technasium variant for havo and vwo students incorporating research and technology components. Designed for students aged 12-18.
• Pre-Vocational Secondary Education (Vmbo basis/kader, kader/tl, tl) Pre-vocational secondary education tracks ranging from basis/kader (vmbo-bb/kb) to theoretical learning (vmbo-tl), offered at the Alkmaar location. Upper years for vmbo basis/kader are delivered in partnership with Van der Meij College. Bridge periods are used for student placement across tracks.
• Technasium (havo/vwo) A specialized havo and vwo track at the Alkmaar location that incorporates the 'profielwerkstuk' (research project) and technology-oriented methodology. Students complete a research project in a technology context as part of their academic program.
• Doorstroomklas (Langedijk Transition Class) A transition class for vmbo-tl and havo students in grades 1 and 2 who need additional support, operated in partnership with Heliomare (special education provider). The class offers a safe, structured, low-stimulation learning environment with 12-18 students, extra pedagogical support, and aims to transition students back to regular education.
• Taalklas / International Transition Classes (ISK) Language support classes for recently arrived students who have not yet mastered Dutch. The school participates in the regional ISK program coordinated through the Samenwerkingsverband Noord Kennemerland, alongside other Alkmaar schools including Stedelijk Dalton College, PCC Oosterhout, Van der Meij College, and Talland College.
• Academic Training School Program (AONHW) Jan Arentsz operates as an academic training school for teacher education as part of the Academische Opleidingsschool Noord-Holland West (AONHW) network, comprising 16 secondary schools and 6 teacher training institutes. Student teachers receive supervised workplace learning (stage) with professional mentoring.
• Langedijk Secondary Education (tl/havo/atheneum) Secondary education programs at the Langedijk campus in Zuid-Scharwoude, offering vmbo-tl, havo, and atheneum underbouw tracks. The Langedijk location serves students from the Dijk en Waard municipality area.

Quantifiable outcome

• Students develop skills for successful continuation education and future careers

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• HeliomarecoreStrategic or Co-development Partner · 1 August 2025Jan Arentsz Langedijk partners with Heliomare (special education provider) to offer a Doorstroomklas (transition class) for students in grades 1-2 requiring additional support. The program provides a safe, structured, low-stimulation learning environment for 12-18 students with extra guidance from pedagogical staff, targeting students with internalizing problems who need support but for whom special education is too big a step. The class follows a special education approach within a regular school setting.
• Van der Meij College (VMC)coreStrategic or Co-development PartnerVmbo basis/kader students from Jan Arentsz attend upper-secondary classes at Van der Meij College from the second half of their second year. JA is responsible for the Health and Welfare (Zorg en Welzijn) sector. Regular consultation occurs between both schools regarding student performance and required support.
• Rent CompanycoreTechnology or IntegrationPartnership with Rent Company for providing Windows laptops to students. The partnership includes a JA-specific webshop with tested laptops, Easy4u subscription service, and integration with school's Microsoft Intune environment for device management, WiFi access, and ICT support including loan devices during repairs.
• Onderwijsregio Hollands NoordenminorStrategic or Co-development PartnerNetwork of schools, educators, and cooperation partners in secondary education and mbo in North Holland above the North Sea Canal. Provides information for people interested in transitioning to education careers.
• Academische Opleidingsschool Noord-Holland West (AONHW)coreStrategic or Co-development PartnerJan Arentsz is an academic training school for teachers, part of AONHW partnership between 16 secondary schools and 6 teacher training institutes. Focuses on achieving teaching qualifications with educational practice as the starting point for learning, research, and professional development.
• Samenwerkingsverband Noord-KennemerlandcoreStrategic or Co-development PartnerConsortium of nine secondary education school boards offering approximately 15,000 children tailored education. Provides additional support arrangements and placement assistance for students requiring more support than the school can provide independently.
• Stichting GroeimeecoreStrategic or Co-development PartnerThree staff members from Stichting Groeimee are attached to the school: youth and school coach, preventive ambulatory youth helper, and behavioral scientist. They provide weekly support for students, parents, and school regarding social-emotional well-being, behavioral issues, home problems, and referrals to specialized assistance.
• GGD Hollands NoordenminorStrategic or Co-development PartnerRegional health service providing youth doctors, youth nurses, and health consultations. Uses MAZL methodology (More Attention for the Sick-Listed Student) for early identification of school attendance issues.
• Gemeente AlkmaarminorStrategic or Co-development PartnerMunicipality providing AlkmaarPas program offering up to €176 per year per child (ages 12-17) for parent contribution support for families with minimum income.
• Gemeente Dijk en WaardminorStrategic or Co-development PartnerMunicipality providing DijkenWaardPas program offering up to €110 per year per child (ages 12-17) for parent contribution support for families with minimum income.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Regional players

• Bonhoeffer College: Broad Christian secondary school in Castricum/Uitgeest in the same North Holland region. Comparable Christian-identity positioning and broad vmbo-havo-vwo portfolio to Jan Arentsz.

Direct peers

• Talland College: Regional secondary school co-participating with Jan Arentsz in ISK coordination and operating in the broader North Kennemerland market. Comparable broad-spectrum secondary offering to JA's havo/vwo tracks.
• Van der Meij College: Regional secondary school in the Alkmaar area that hosts Jan Arentsz vmbo basis/kader students for upper-secondary classes and co-participates in ISK. Direct delivery partner and regional competitor for vocational-track students.
• Stedelijk Dalton College: Alkmaar-based secondary school participating in the same Samenwerkingsverband Noord-Kennemerland and ISK coordination as Jan Arentsz. Direct regional competitor for the same 12-18 age cohort and parental school-choice set.
• Murmellius Gymnasium: Alkmaar-based gymnasium offering the academic track that Jan Arentsz also delivers (atheneum/gymnasium). Direct competitor for vwo-oriented families in the same city.
• SOVON (Scholen voor Voortgezet Onderwijs in Noord-Holland): Regional school board operating secondary schools in North Holland and joint signatory on the intentieverklaring to consolidate vmbo-aanbod in Alkmaar with Jan Arentsz and PCC. Direct regional peer for secondary-age students.
• Petrus Canisius College (PCC Alkmaar): Alkmaar-based Catholic secondary school, joint signatory with Jan Arentsz on the February 2026 intentieverklaring to consolidate beroepsgericht vmbo-aanbod in Alkmaar. Co-participant in ISK and direct competitor for the same Catholic/Christian parental segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/CsgJanArentsz
• LinkedInlinkedin.com/company/jan-arentsz/?viewAsMember=true
• Instagraminstagram.com/janarentsz_csg

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Jan Arentsz