SBO De Keerkring

What SBO De Keerkring does

SBO De Keerkring is a Dutch school for Speciaal Basisonderwijs (SBO), or special primary education, located at Rembrandtlaan 50 in Woerden, Netherlands. Founded in 1995 and operating under the governance of the Kalisto Boeiend Basisonderwijs foundation (which manages 15 regular basisscholen plus this single SBO across Montfoort, Woerden, Stichtse Vecht, and De Ronde Venen), the school serves approximately 200 students aged 4–12 with specific educational and care needs spanning social-emotional, behavioral, cognitive, speech, and motor domains. Classes are capped at 16 students and structured across three divisions (OB/MB/BB), supported by a multidisciplinary in-house team that includes a kindercoach, orthopedagoog, fysiotherapeuten, logopedist, intern begeleiders, and a maatschappelijk deskundige.

The school's pedagogical core rests on a structured, predictable environment reinforced by the PBS (Schoolwide Positive Behavior Support) framework and its proprietary Goody's reward system, alongside specialized programs such as the 'Ken je kracht' 10-week social-skills training. After-school care (BSO Keerkring) is provided on-premises through a partnership with KMN Kind & Co, and teacher development is supported via collaborations with the Marnix Academie and Stichting Leerkracht. Technology infrastructure is deliberately modest: standard third-party digital learning materials under data-processing agreements (verwerkingsovereenkomsten), the Social Schools app for parent communication, and a content website at dekeerkring.nl — no proprietary platforms, APIs, or AI systems are described.

The business model is entirely non-commercial: revenue flows from Dutch government education funding allocated through the Kalisto foundation, supplemented by a voluntary annual parent contribution (vrijwillige ouderbijdrage) collected by the Oudervereniging to fund extracurricular events such as Sinterklaas, Kerst, schooltrips, and the school photographer. Student enrollment is referral-driven — parents must obtain a toelaatbaarheidsverklaring (TLV) from the regional collaborative partnership Passenderwijs (Utrecht-West) before admission. Day-to-day leadership rests with two directors, Tamara Drost and Ilonka Hartsink, supported by a team of approximately 50 staff.

Name

SBO De Keerkring

Legal name

SBO De Keerkring

Website

https://dekeerkring.nl

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

SBO De Keerkring is a publicly funded Dutch special primary school (Speciaal Basisonderwijs) in Woerden, serving approximately 200 students aged 4–12 with specialized educational and care needs through small classes, a multidisciplinary in-house specialist team, and a PBS/Goody's behavioral framework, operating under the Kalisto Boeiend Basisonderwijs foundation.

Ownership category

akta.pro rank

Product category

Special Primary Education

NAICS

Elementary and Secondary Schools (611110), Elementary and Secondary Schools (6111), Elementary and Secondary Schools (61111), Educational Support Services (611710), Educational Support Services (61171)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Charter Special Education & Inclusive Programs (EDAJACAF)

akta.pro secondary industries

Instructional Delivery & Pedagogy (School-Led) (EDAJAFAB), Special Education Evaluation & Assessment (Psychoeducational, Speech/Language, OT/PT) (EDAJAKAA), Wraparound Student Support & Case Management Services (At-Risk K–12) (EDAJAEAJ)

Keywords

• Special primary education
• Special education services
• Student support services
• Behavioral support education
• After-school care

Headquarters

HQ city

Woerden

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Others

Revenue model

1. Public education funding: As a publicly funded special primary school (SBO) in the Netherlands, SBO De Keerkring operates primarily on government-funded education budgets allocated through the Kalisto Boeiend Basisonderwijs foundation. Revenue is not generated through commercial means but through state educational funding.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

SBO De Keerkring is a Dutch special primary education (Speciaal Basisonderwijs) school in Woerden that provides tailored education to approximately 200 students aged 4-12 with specific educational and care needs. The school operates in small classes of maximum 16 students, supported by an in-house multidisciplinary specialist team (kindercoach, orthopedagoog, physiotherapists, speech therapist) and delivers a schoolwide Positive Behavior Support program with its proprietary 'Goody's' reward system.

Product overview

SBO De Keerkring is a school for Speciaal Basisonderwijs (SBO) - special primary education - located in Woerden, serving approximately 200 students with specific educational and care needs. The school operates with an organizational structure of three main divisions: Onderbouw (OB), Middenbouw (MB), and Bovenbouw (BB), each consisting of multiple groups with a maximum of 16 students per class. The core educational offering is complemented by an extensive in-house support team providing specialist services including kindercoaching (kindercoach Loekie), logopedie, fysiotherapie, orthopedagoog support, and internal behavioral specialists. The school also offers BSO Keerkring (BSO - outside school care) operated by KMN Kind & Co, and implements PBS (Positive Behavior Support) with their proprietary 'Goody's' reward system. All these components work together to provide individualized, supportive education for students with diverse learning needs.

Differentiator

Problem solved

Functional benefit

Products and services

• Speciaal Basisonderwijs (SBO) Special primary education services for students aged 4-12 with specific educational and care needs, delivered in classes of maximum 16 students with extra-trained teachers.
• Buitenschoolse Opvang (BSO) Keerkring After-school care provided by KMN Kind & Co on the school premises, featuring play areas (huishoek, autohoek, atelier, chillplek), open Monday, Tuesday, Thursday, and Friday from 14:15 to 18:30.
• Sociale Vaardigheidstraining 'Ken je kracht' 10-week social skills training for children with insecurity, emotional regulation difficulties, or boundary-setting challenges.

Named customers2 records

Segments1 record

Ideal customer profiles1 record

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.

• Kalisto Boeiend BasisonderwijscoreOthersSBO De Keerkring is under the governance of Kalisto Boeiend Basisonderwijs, which consists of 15 basisscholen and 1 special basisschool across the municipalities of Monfoort, Woerden, Stichtse Vecht, and De Ronde Venen. Kalisto provides overarching educational leadership, HR, and organizational support. The school follows Kalisto's mission of preparing students for the future by giving them a solid foundation, challenging them, and helping them discover their talents.
• Passenderwijs (samenwerkingsverband Utrecht-West)coreStrategic or Co-development PartnerPassenderwijs is the regional collaborative partnership for special education in Utrecht-West. They are responsible for issuing toelaatbaarheidsverklaring (TLV) certificates that determine whether a child qualifies for special primary education. SBO De Keerkring works with Passenderwijs to facilitate student referrals and transitions.
• Marnix AcademieminorStrategic or Co-development PartnerKalisto and the Marnix Academie are 'Partners in Opleiding en Ontwikkeling' (Partners in Education and Development), providing internships for teacher training students. SBO De Keerkring participates in this program, offering student teachers supervised experience in a special primary education setting.
• CED Groep (Angela Groen and Hans van Holland)minorImplementation/ SI/ Consulting PartnerCED Groep provides external contact persons (externe vertrouwenspersonen) for Kalisto schools. Angela Groen and Hans van Holland from CED Groep serve as external confidential advisors for SBO De Keerkring, handling school-related concerns and complaints. They can be reached at 010-4071599 or [email protected].
• KMN Kind & Co (BSO Keerkring)coreChannel Partner/ Reseller/ DistributorKMN Kind & Co operates BSO Keerkring, the after-school care facility located in the school's handvaardigheidslokaal (crafts room). The BSO offers free play and themed activities, and is open Monday, Tuesday, Thursday, and Friday from 14:15 to 18:30, and during school holidays from 7:30 to 18:30. Before-school care (VSO Bengels) is also available from 7:30. The Senior Pedagogisch medewerker is Yasmin Schouten.
• GGD regio UtrechtminorOthersThe school is linked to GGD regio Utrecht, the regional health service for youth, which provides school health services including school doctors and health promotion programs.
• Stichting LeerkrachtminorOthersThe school collaborates with Stichting Leerkracht for professional development, including training teachers to give and receive feedback. The school follows a cycle of expertise focus areas where teams observe each other's lessons and provide structured feedback.

Scale indicators3 records

Recent moves7 records

Expansion highlights4 records

Regional players

• Passenderwijs samenwerkingsverband Utrecht-West: The regional cooperative that issues TLV admissions certificates and routes students to SBO and SO providers in Utrecht-West. As the gating partner for De Keerkring's intake, it operates complementary rather than competing services but is the most relevant regional reference point for the school's operating environment.

Others

• PO-Raad (po-raad.nl): The Dutch sector association for primary education, representing school boards like Kalisto. Comparable as a sector-level reference for policy, funding, and best-practice benchmarking for SBO De Keerkring's operating environment.
• KMN Kind & Co (BSO Keerkring): Operates the on-site after-school care (BSO Keerkring) within De Keerkring's premises. While not a direct competitor, KMN Kind & Co is a tightly integrated ecosystem partner that extends the school's service offering into out-of-school hours.
• Marnix Academie (primary teacher training): Partner in Education and Development with Kalisto, providing student-teacher internships at SBO De Keerkring. Comparable as an upstream talent-pipeline provider feeding the school's staffing model.
• CED Groep: Provides external confidential advisors (externe vertrouwenspersonen) to Kalisto schools including SBO De Keerkring. A governance and support services peer within the broader Dutch education ecosystem.

Broad incumbents

• Bartiméus Onderwijs: Dutch specialist-education provider for visually impaired and multiply disabled students, operating SBO/SO clusters across the Netherlands. Comparable as a long-established, multidisciplinary, mission-driven special-education institution.
• Koninklijke Kentalis: One of the largest Dutch special education and care organisations, serving deaf, hard-of-hearing, and communicatively impaired children across multiple SBO and SO clusters. A broad incumbent that demonstrates the scale-up pathway for specialised Dutch education providers.

Direct peers

• Kalisto Boeiend Basisonderwijs (other schools in network): SBO De Keerkring is the sole special primary school within the Kalisto foundation, which operates 15 regular basisscholen across Woerden, Montfoort, Stichtse Vecht, and De Ronde Venen. Sister schools within Kalisto share governance, HR, and educational philosophy, making them the closest operational peers even though they serve mainstream students.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sbo-de-keerkring
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Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 SBO De Keerkring