Inspecteur S. de Vriesschool. Heliotrooplaan 35

What Inspecteur S. de Vriesschool. Heliotrooplaan 35 does

Inspecteur S. de Vriesschool is a public Dutch special education school (openbare school) serving students classified as Zeer Moeilijk Lerende Kinderen (ZMLK) — children with limited intellectual abilities — across two campuses in Den Haag. The Speciaal Onderwijs (SO) division at Heliotrooplaan 35 serves ages 4-12 across 11 groups including two TEACCH-structured support groups (Beo and Papegaai), while the Voortgezet Speciaal Onderwijs (VSO) division at Esther de Boer van Rijklaan 80 serves ages 12-20 across 12 groups organized into leerroute 1/2/3 and 3/4 tracks. The school is the only public ZML institution in the Haaglanden region combining SO and VSO under one governance structure, and is governed by Stichting De Haagse Scholen, a municipal foundation overseeing approximately 55 schools.

The school's core educational technology consists of the proprietary Doen-In portfolio system — a student self-monitoring framework tracking progress across three linked portfolios (Vak, AVO, Stage) with certificates tied to four exit profiles ranging from experiential day care to sheltered employment. Instruction is delivered through the Meervoudige Intelligentie (Multiple Intelligences) methodology and, in support groups, the TEACCH model for structured learning. VSO students rotate through vocational profiles (Dienstverlening, Ambachtelijk werk, Groen, Techniek, Consumptief) with external placements at partner businesses including Albert Heijn, Omni-Groen Clingendael, and Mr. Visserhuis care home. A school-wide tablet program (Acer devices via Miegroup) supports digital literacy and Cito assessments. The school also operates an expertise center providing ambulante begeleiding to other schools in the SPPOH network.

The business model is government-funded with no commercial revenue stream. Funding flows from Dutch public education budgets via De Haagse Scholen Stichting, supplemented by ESF+ 2021-2027 subsidies (coordinated by Gemeente Den Haag, €15M for 2022-2023 and €30M for 2023-2025 across all PrO/VSO schools) for labor market integration, and WMO/WLZ funding for post-school day care internships. Enrollment requires a toelaatbaarheidsverklaring from the SPPOH samenwerkingsverband, with a formal placement research process including dossier review, observation, and parent intake. Distribution is via referral from the SPPOH network and the school's expertise-center visibility rather than commercial channels. Leadership consists of two division directors: Lidia Taal (Directeur SO) and Miranda van de Kolk (Directeur VSO).

Name

Inspecteur S. de Vriesschool. Heliotrooplaan 35

Legal name

Inspecteur S. de Vriesschool

Website

https://inspecteurdevriesschool.nl

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Inspecteur S. de Vriesschool is a public Dutch special education school serving ZMLK students aged 4-20 across two Den Haag campuses (SO at Heliotrooplaan, VSO at Esther de Boer van Rijklaan). It delivers individualized education via the proprietary Doen-In portfolio system, Multiple Intelligences methodology, and TEACCH structured learning, government-funded with no commercial revenue.

Ownership category

akta.pro rank

Product category

Special Education

NAICS

Elementary and Secondary Schools (6111)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Specialized Programs & Classrooms (Autism, Emotional/Behavioral, Intellectual/Developmental, Multi-Disability) (EDAJAKAH)

akta.pro secondary industry

IEP/504 Planning, Case Management & Compliance (EDAJAKAB)

Keywords

• Special education services
• Vocational training programs
• Inclusive education support
• Developmental disability programs
• Educational ambulatory guidance

Headquarters

HQ city

Den Haag

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 Funding (Openbaar Onderwijs): As an openbare (public) school under the governance of Stichting De Haagse Scholen, the school is funded through Dutch government educational funding. The municipality of Den Haag coordinates ESF+ subsidies (€15M for 2022-2023, €30M for 2023-2025 across all PrO/VSO schools) allocated to the arbeidsmarktregio Haaglanden for vocational training and labor market integration of students. Revenue is not generated through direct tuition or commercial channels.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Inspecteur S. de Vriesschool is a public Dutch special education institution providing individualized Speciaal Onderwijs (SO, ages 4-12) and Voortgezet Speciaal Onderwijs (VSO, ages 12-20) for children with limited intellectual abilities (ZMLK). The school delivers customized curriculum via the Doen-In portfolio system, prepares students toward four exit profiles (day care to sheltered employment), and operates a regional expertise center offering ambulante begeleiding to surrounding schools.

Product overview

Inspecteur S. de Vriesschool is a public special education school for Very Difficult-to-Learn (ZMLK) children aged 4-20, operating two divisions: Speciaal Onderwijs (SO) for ages 4-12 at Heliotrooplaan and Voortgezet Speciaal Onderwijs (VSO) for ages 12-20 at Esther de Boer van Rijklaan. The school functions as both a direct education provider and an expertise center, offering individualized instruction through the Doen-In portfolio system and tablet-based learning, with vocational training through internship programs at partner businesses. The educational approach emphasizes Multiple Intelligence theory, learning route differentiation, and preparation for employment or day care through four exit profiles. The expertise center also provides ambulatory guidance services to other schools in the region.

Differentiator

Problem solved

Functional benefit

Products and services

• Speciaal Onderwijs (SO) Special education program for children aged 4-12 with limited intellectual abilities (ZMLK), located at Heliotrooplaan 35 in Den Haag. Provides individualized and differentiated instruction covering sensory exercises, Dutch language, mathematics, world orientation, physical education, social-emotional development, and artistic expression, with two specialized TEACCH-based support groups for students with complex needs.
• Voortgezet Speciaal Onderwijs (VSO) Continuing special education program for students aged 12-20 with limited intellectual abilities, located at Esther de Boer-van Rijklaan 80 in the green Clingendael/Duinzigt area of Den Haag. Offers practical skills training in technology, textile crafts, care, ICT, cooking, household management, social independence, and gardening, oriented toward employment, day care, or sheltered work preparation via the Doen-In portfolio system and four exit profiles.
• Doen-In Portfolio System Proprietary student self-monitoring portfolio system used uniformly across all learning areas according to VSO ZML core objectives. Each student maintains a Vak-portfolio (practical subjects), an AVO-portfolio (general educational subjects), and a Stage-portfolio (work skills), with all portfolio components carrying linked certificates achievable across all school years and divisions.
• Tablet Learning Program School-wide tablet-based learning initiative providing Acer tablets to all students and integrating digital literacy (technological skills, information literacy, media wisdom) into the curriculum. Tablets are stored in secured, chargeable trolleys and used for educational software and Cito assessments.
• VSO Internship and Vocational Training Program Vocational training program for VSO upper-school students combining internal workshop-based vocational profile exploration with external workplace internships at regional partner businesses. Students cycle through five vocational profiles (Service, Craft, Green, Technology, Consumer/Hospitality) over 3-month periods and select 2-3 profiles for portfolio-based progression.
• Learning Route Programs (Leerroutes 1-4) Differentiated learning route programs structuring VSO instruction by cognitive level and skill trajectory: Routes 1/2 (for students with IQ below 35) focus on communicative, motor, and sensory development, while Routes 3/4 (for students with IQ below 70) focus on functional literacy, numeracy, and 21st-century skills including collaboration, communication, creative thinking, and digital literacy.
• Ambulante Begeleiding (Expertise Center Service) Expertise center service offering consultation, advice, and tailored support to other schools in the Haaglanden region for students with developmental disabilities including ADHD, autism, and Down syndrome. Service activities include observation, file analysis, didactics instruction, learning program adaptation, and recommendations for specific methods and materials.
• VSO School Diploma - Exit Profiles (Uitstroomprofielen 1-4) School diploma program preparing VSO students for one of four structured exit profiles: Profile 1 (experience-oriented day care), Profile 2 (activity-oriented day care), Profile 3 (work-oriented day care), and Profile 4 (sheltered work and employment), with curriculum and certification requirements aligned to each profile.
• Samen Reizen Met... (Travel-Together Student Participation Project) Participation project that trains VSO students in independent commuting by bicycle or public transport, with volunteer travel companions (unemployed job seekers) recruited and coordinated by Carolien Aalders Training & Advies. Aims to increase student self-reliance, reduce dependence on specialized taxi transport, and provide meaningful daytime activities for volunteer companions.

Quantifiable outcome

• Students achieve one of four exit profiles: belevingsgerichte dagbesteding, activiteitengerichte dagbesteding, arbeidsmatige dagbesteding, or beschut werk en arbeid.
• +3 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Carolien Aalders Training & AdviescoreStrategic or Co-development PartnerCoordinates the 'Samen Reizen Met…' (Traveling Together) participation project for student transport. Manages recruitment, screening, and coordination of unemployed job seekers who voluntarily accompany students on cycling or public transit commutes to school. Handles travel planning for both guides and students, and facilitates regular progress monitoring among all parties (municipality, school, student, guide, parents). The project aims to train students in independent commuting and provide meaningful daytime activities for unemployed volunteers.
• De Have KennisdelersminorStrategic or Co-development PartnerPartner organization supporting the 'Samen Reizen Met…' project. Referenced as the parent network or platform through which Carolien Aalders operates. Provides knowledge-sharing infrastructure for the participation project.
• SPPOH (Samenwerkingsverband Passend Primair Onderwijs Haaglanden)coreStrategic or Co-development PartnerRegional educational collaboration for inclusive education in The Hague, Leidschendam-Voorburg, and Rijswijk. SPPOH supports schools in providing passend onderwijs and directs students requiring ZML-level support to the Inspecteur S. de Vriesschool. The school participates in SPPOH's budget system for individual student arrangements. SPPOH also screens students referred from non-school organizations.
• Albert HeijnminorStrategic or Co-development PartnerHost company for the 'Winkel' (retail) vocational profile for VSO upper-school students. Students receive practical retail training at Albert Heijn locations, supported by the school teacher and company staff. The internship provides authentic work experience within the retail sector as part of the Doen-In vocational profile system.
• Omni-Groen ClingendaelminorStrategic or Co-development PartnerHost facility for the 'Groen' (green/horticultural) vocational profile. VSO students receive practical horticultural training at Omni-Groen in Clingendael and in greenhouse facilities, guided by school staff and facility personnel. The location is near the VSO school campus. Students work toward certificates linked to the Doen-In portfolio system.
• Mr. VisserhuisminorStrategic or Co-development PartnerCare home (verzorgingstehuis) that hosts the 'Verzorging/Schoonmaak' (care/cleaning) vocational profile for VSO students. Students train on-site at Mr. Visserhuis, receiving practical experience in care and cleaning tasks under joint supervision of school staff and facility employees. Forms part of the 'Dienstverlening' (service) vocational profile.
• TalentenhuisminorStrategic or Co-development PartnerExternal sports professionals who provide active, structured lunch break supervision for VSO students during the midday pause. Four pause groups rotate through outdoor sports activities supervised by Talentenhuis professionals, helping students discover talents, enjoy movement, and improve academic performance.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• 's Heeren Loo Onderwijs: Large Dutch care and education organization running SO/VSO clusters for students with intellectual disabilities (ZMLK population). Comparable in target student segment, cluster-based multi-location operation, expertise-center role, and integration with day-care/sheltered-work exit profiles (belevingsgerichte/activiteitengerichte dagbesteding, beschut werk).
• Bartiméus Onderwijs: Dutch special education provider focused on visual impairment and multiple disabilities, operating SO and VSO clusters. Comparable along the dimensions of public-style special education funding, IEP-style portfolio tracking, multi-location cluster structure, and expertise-center services to surrounding schools.
• Koninklijke Kentalis: Large Dutch special education provider (deaf/hard-of-hearing and communication-disorder focus) operating multiple SO/VSO locations under a comparable governance, funding, and cluster structure. Comparable as a large Dutch public-style special education network with portfolio-based student tracking and ambulatory guidance services.
• Visio Onderwijs: Netherlands-based special education organization for visually impaired and multiply disabled students, running SO/VSO schools across regions. Comparable in delivery model (multi-site special education clusters, ambulatory guidance to mainstream schools, regulated enrollment pathways) and customer segment (students with severe developmental needs).

Regional players

• SPOH (Stichting Speciaal Onderwijs Haaglanden): Regional special education foundation in The Hague serving a closely overlapping student population with a similar SO/VSO cluster model. Direct geographic peer within Haaglanden sharing the same samenwerkingsverband ecosystem and admission pathways.
• SBO (Speciaal Basisonderwijs) schools in Haaglanden region: Special primary education (SBO) cluster schools in the same Haaglanden region serving students with milder learning difficulties. Comparable in geography and partial student-profile overlap, and compete with SO for borderline referrals through the same samenwerkingsverband.

Others

• Talentenhuis: External sports and activity professionals partner used for structured VSO lunch-break supervision. Treated as an adjacent ecosystem service provider enabling the school's differentiated programming rather than a direct competitor.

Direct peers

• Lijn 83 Haags School Initiatief (other De Haagse Scholen speciaal onderwijs schools): Sister schools within the same Stichting De Haagse Scholen governance umbrella — 3 special basisonderwijs and 6 speciaal onderwijs schools in the same region. Operationally identical parent foundation, funding flows, MR structure, and policy environment.
• SO/VSO clusters in samenwerkingsverbanden outside Haaglanden (e.g., ZMLK SO/VSO schools in Rotterdam, Amsterdam, Utrecht): Other Dutch ZMLK-focused special education schools operating under comparable Passend Onderwijs structures with toelaatbaarheidsverklaring admission pathways. Comparable in target segment (IQ <35 to <70), cluster-based grouping, exit-profile frameworks, and ambulatory guidance offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/inspecteur-s.-de-vriesschool.-heliotrooplaan-35

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Inspecteur S. de Vriesschool. Heliotrooplaan 35