Stichting Portuur

What Stichting Portuur does

Stichting Portuur is a Dutch non-profit educational foundation (stichting) established in 2021 through the administrative merger (bestuurlijke fusie) of Het Assink lyceum and Staring College. The foundation operates as a unified school governing body (schoolbestuur) overseeing secondary education across five physical locations in the Achterhoek and Twente regions of the Netherlands: Het Assink lyceum (Haaksbergen, Neede, Eibergen) and Staring College (Lochem, Borculo), offering the full vmbo-havo-vwo-gymnasium spectrum. In 2022, the foundation extended its scope by establishing ISK Portuur in Borculo, an International Transition Class providing Dutch language instruction and integration support for unaccompanied minor refugees (AMVs) aged 12-18 across the municipalities of Berkelland, Haaksbergen, and Lochem.

The foundation is publicly funded, receiving revenue through Dutch government subsidies channeled via DUO (Dienst Uitvoering Onderwijs), and charges no tuition fees. Its operational model preserves the constituent schools' individual identities, pedagogical philosophies, and local leadership while consolidating central administrative functions — finance, HR, IT, housing, quality assurance, and educational logistics — under a staff bureau (stafbureau) headquartered in Lochem. This federated structure balances local autonomy with shared back-office efficiency. The foundation partners formally with three municipalities, COA, Nidos, and ISK Winterswijk to deliver the ISK vertical and broader educational programming.

The organization's go-to-market is institutionally rather than commercially oriented: student enrollment occurs through direct school-level processes and open-house events, staff recruitment flows through the Vota vacancy platform, and stakeholder engagement proceeds via municipal and regional partnerships. There are no technology products, proprietary platforms, or AI/ML capabilities; the foundation's competitive positioning rests on geographic accessibility (multiple locations across a rural region), statutory entitlement to public funding, established community brand equity in legacy school names, and an integrated stakeholder ecosystem anchored by municipal and refugee-reception partners. Recent strategic emphasis has centered on professional development — exemplified by an in-house contextual student guidance training program delivered by Ortho Consult to 16 staff members across the 2024-2025 and 2025-2026 school years — and infrastructure investment via a new school building agreement with Haaksbergen signed in January 2024.

Name

Stichting Portuur

Legal name

Stichting Portuur

Website

https://www.portuur.nl

Company type

Private

Operating status

Operating

Short description

Stichting Portuur is a Dutch non-profit educational foundation governing three secondary education entities — Het Assink lyceum, Staring College, and ISK Portuur — across the Achterhoek and Twente regions, serving students aged 12-18 with publicly funded education including newcomer integration programs.

Ownership category

akta.pro rank

Product category

Public Secondary Education

NAICS

Elementary and Secondary Schools (611110)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Transition Services (Secondary to Postsecondary/Employment, Life Skills) (EDAJAKAG)

akta.pro secondary industry

Public Alternative, Continuation & Credit-Recovery Schools (EDAJAAAG)

Keywords

• Secondary education services
• Public secondary schools
• Newcomer education programs
• Dutch language instruction
• School governing body

Headquarters

HQ city

Lochem

HQ country

Netherlands

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D

Revenue model

1. Public Education Funding: Stichting Portuur operates as a publicly funded educational institution receiving government funding from DUO (Dienst Uitvoering Onderwijs) for providing secondary education services. Revenue is derived from government subsidies allocated for educational operations, student enrollment, and special programs such as the ISK for newcomer students.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Stichting Portuur is a publicly funded Dutch educational foundation that governs secondary schools (Het Assink lyceum and Staring College) and an International Transition Class (ISK) for newcomer students in the Achterhoek and Twente regions. It delivers secondary education across vmbo, havo, vwo, and gymnasium levels, plus intensive Dutch language and integration instruction for unaccompanied minor refugees aged 12-18. The foundation operates as the unified administrative body while each constituent school maintains its own identity and educational approach.

Product overview

Stichting Portuur is an educational foundation governing three secondary education institutions in the Achterhoek and Twente region of the Netherlands. The organization operates as a unified structure overseeing: Het Assink lyceum (offering vmbo through gymnasium programs in Haaksbergen, Neede, and Eibergen with a talent-oriented approach), Staring College (offering vmbo through gymnasium+ in Lochem and Borculo with a student-centered philosophy), and ISK (Internationale Schakelklas) providing Dutch language instruction and integration support for unaccompanied minor refugees aged 12-18 in Borculo. The schools maintain their individual identities while sharing administrative resources and professional development opportunities through the central stichting.

Differentiator

Problem solved

Functional benefit

Products and services

• Het Assink lyceum A scholengemeenschap (school community) offering vmbo-bb, vmbo-kb, vmbo-g/tl, havo, vwo, vwo-plus and gymnasium programs across three locations in Haaksbergen, Neede, and Eibergen. Targets students aged 12-18 in the Achterhoek and Twente regions with a talent-oriented education approach.
• Staring College A scholengemeenschap offering vmbo-bb, vmbo-kb, vmbo-g/tl, havo, atheneum and gymnasium+ at two locations in Lochem and Borculo. Serves students aged 12-18 with the motto 'dichter bij jou' (closer to you), emphasizing a student-centered learning environment.
• ISK (Internationale Schakelklas) An International Transition Class located in Borculo (Beukenlaan 1) for young people aged 12-18 who are new in the Netherlands. Provides intensive Dutch language instruction, social and practical skills over a maximum of two years before students transition to regular secondary education or mbo. Serves unaccompanied minor refugees (AMV's) housed in COA accommodation.

Quantifiable outcome

• 95.3% exam pass rate with 7 cum laude graduates
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered core and minor.

• Gemeente BerkellandcoreStrategic or Co-development PartnerMunicipal government that partnered with Portuur to establish ISK education. The municipality provided the former Assink location on Julianastraat in Neede for ISK use and continues to support educational initiatives for newcomers.
• Gemeente HaaksbergencoreStrategic or Co-development PartnerMunicipal government that collaborates with Portuur on educational services, including hosting ISK programs and participating in integration efforts for newcomers.
• Gemeente LochemcoreStrategic or Co-development PartnerMunicipal government partnering with Portuur for educational provision, including hosting ISK and supporting regional education initiatives.
• COA (Centraal Orgaan opvang Asielzoekers)coreStrategic or Co-development PartnerCentral reception organization for asylum seekers that coordinates housing for unaccompanied minor refugees (AMV's) who attend the ISK in Borculo.
• NidoscoreStrategic or Co-development PartnerGuardian institution for unaccompanied minor asylum seekers that works with the ISK to provide care and educational support for AMV students.
• Ortho ConsultminorImplementation/ SI/ Consulting PartnerTraining provider that delivered the contextual student guidance training program to Portuur staff in school years 2024-2025 and 2025-2026, facilitated by trainer Kim Oonk.
• ISK WinterswijkminorStrategic or Co-development PartnerISK in Winterswijk that shared experience, knowledge, and teaching materials to help Portuur quickly establish quality ISK education in the Achterhoek region.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Stichting ZAAM: Stichting ZAAM is a regional Dutch secondary education foundation governing VO schools in the Amsterdam metropolitan area. Comparable multi-school foundation structure providing the same full VO spectrum as Portuur.
• Quadraam: Stichting Quadraam is a regional Dutch secondary education foundation governing multiple VO schools across Gelderland. Highly comparable to Portuur in structure, mission and operating geography, making it a closely matched peer.
• Stichting Het Streek: Het Streek in Ede is a regional Dutch secondary school foundation where Portuur's current Chair of the Board, Gertjan van der Molen, previously served as bestuurder. Closely comparable in size, governance model and educational scope.
• LVO (Limburgs Voortgezet Onderwijs): Stichting LVO is a regional Dutch secondary education foundation governing VO schools across Limburg. Directly comparable as a multi-school foundation offering the same vmbo-havo-vwo spectrum under unified governance.

Regional players

• ISK Winterswijk: ISK Winterswijk is an International Transition Class in the Achterhoek region that acted as a peer and knowledge source for Portuur's ISK launch. Comparable as an ISK program serving newcomers, though operating as a peer program rather than competing for the same students.

Broad incumbents

• Stichting Carmelcollege: Stichting Carmelcollege is one of the largest Catholic secondary education networks in the Netherlands. A broader incumbent operating in the same VO space but at materially larger scale across multiple regions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 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 Stichting Portuur