Siza
Siza is a Dutch non-profit healthcare foundation headquartered in Arnhem that provides residential, home, educational, treatment, and work-reintegration services to approximately 3,500 people with physical, intellectual, multiple disabilities, mild intellectual disability, and acquired brain injury across more than 100 locations in Gelderland, funded primarily through Dutch statutory healthcare frameworks.
- Company typePrivate
- Founded-
- HeadquartersArnhem, Netherlands
- Headcount1,001–5,000
- GTM typeB2C
- OfferingServices
What Siza does
Siza (Stichting Siza) is a Dutch non-profit healthcare foundation headquartered in Arnhem that delivers care, support, treatment, education, and work-reintegration services to people with physical, intellectual, multiple disabilities, mild intellectual disability (LVB), and non-congenital brain injury (NAH). The organization emerged from the merger of several legacy care foundations that historically managed facilities including the well-known Het Dorp campus (traced to the 1962 Mies Bouwman television fundraiser) and 's Koonings Jaght, and today operates over 100 locations across the Gelderland province, serving approximately 3,500 clients with roughly 2,500 employees.
Siza's service portfolio spans five core categories — Wonen (residential support ranging from independent living to 24-hour group-home care), Begeleiding Thuis (home-based guidance for adults and families), Dagbesteding (day activities), Leren en Werken (education and employment reintegration), and Behandeling (specialist treatment including rehabilitation) — augmented by Logeren (respite care). Specialized, differentiated offerings include the HouVast intervention (recognized by the Dutch Youth Institute NJI) for parents with mild intellectual disability, De Kameleon Onderwijszorggroep (an integrated care-and-education school for children aged 6-18 with severe intellectual disabilities), the Expertisecentrum NAH network for acquired brain injury with interdisciplinary Hersenz treatment modules averaging 1.5 years per client, De Belevenis sensory experience world, and assistive technologies such as VRelax virtual reality relaxation. Underpinning the model are institutionalized methodologies — LACCS, Triple-C, HouVast, Hersenz, BOL/EIM, and PACT — that codify Siza's clinical approach across care settings.
Commercially, Siza operates as a publicly funded care provider rather than a commercial entity. Revenue flows primarily through Dutch statutory frameworks: Wet langdurige zorg (Wlz) for long-term residential care, Wet maatschappelijke ondersteuning (Wmo) for community and home support, Jeugdwet for youth and family services, UWV work-reintegration trajectories, and personal budgets (Pgb). Supplementary income derives from donations and legacies channeled through two affiliated support foundations — Stichting Het Dorp and Stichting Vrienden van Het Dorp — and from named commercial activity at De Belevenis (ticket-based sensory sessions starting at €50). Client acquisition is referral-driven via CIZ indications, municipal Wmo/Jeugdwet decisions, and a central intake function (SizaEntree). The organization partners with school providers, housing corporations, social enterprises, and national knowledge institutes, embedding itself in a multi-stakeholder care ecosystem across Gelderland.
Siza firmographics
Firmographics- Name
- Siza
- Legal name
- Stichting Siza
- Website
- https://siza.nl
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Siza is a Dutch non-profit healthcare foundation headquartered in Arnhem that provides residential, home, educational, treatment, and work-reintegration services to approximately 3,500 people with physical, intellectual, multiple disabilities, mild intellectual disability, and acquired brain injury across more than 100 locations in Gelderland, funded primarily through Dutch statutory healthcare frameworks.
- Ownership category
- akta.pro rank
Siza industry classification
Industry- Product category
- Disability Care Services
- NAICS
- Residential Intellectual and Developmental Disability Facilities (62321), Residential Intellectual and Developmental Disability, Mental Health, and Substance Abuse Facilities (6232), Services for the Elderly and Persons with Disabilities (62412)
- SIC
- Services-Nursing & Personal Care Facilities (8050), Services-Home Health Care Services (8082), Services-Social Services (8300)
- akta.pro primary industry
- Long-Term Care Rehabilitation Centers (HLAFAFAD)
- akta.pro secondary industries
- Respite Care for Adults with Disabilities / Special Needs (HSABAGAI), Special Needs Adult Day Programs (Developmental/Physical Disabilities, Seniors) (HLADAIAI), Cognitive-Communication & Memory Rehab Therapy In-Home (HSABADAL), Neurorehabilitation Centers (HLAFAFAH)
Keywords
Where Siza is headquartered
LocationHeadquarters
- HQ city
- Arnhem
- HQ country
- Netherlands
- HQ region
- Europe
Offices56 records
Markets served
Siza business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D, Supply Chain
Revenue model
- Government-Funded Healthcare (Wlz): Funded through the Wet langdurige zorg (Wlz - Long-term Care Act), covering residential care and intensive support for individuals with chronic conditions or disabilities.
- Municipal Care Funding (Wmo): Funded through the Wet maatschappelijke ondersteuning (Wmo - Social Support Act) for community-based support and home care services.
- Youth Act Services (Jeugdwet): Services for children and youth funded under the Jeugdwet (Youth Act), including support for families and specialized youth care.
- Personal Budget (Pgb): Services funded through a personal budget (Pgb), where clients choose and direct their own care providers.
- UWV Work Reintegration: Work reintegration trajectories funded through UWV (Employee Insurance Agency) for people with disabilities.
- Donations and Legacies: Donations from individuals and organizations, including inclusion in wills, with funds freely allocated unless a specific destination is designated in a testament. Siza manages two support foundations: Stichting Het Dorp and Stichting Vrienden van Het Dorp.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Per session | Belevenis family visit (up to 4 persons) |
| Unit Pricing | Per session | Belevenis care organization visit (up to 10 persons) |
| Subscription | Multi-year contract | 5-session pass for families (4 persons) |
| Subscription | Multi-year contract | 5-session pass for care organizations (5 clients + 5 caregivers) |
| Unit Pricing | Per session | Belevenis birthday party (5 persons including birthday child) |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels10 records
Siza product offering
Product offeringCore offering
Siza delivers integrated care and support services to people with physical, intellectual, multiple disabilities, and acquired brain injury (NAH) through residential living, home guidance, day activities, learning and working programs, clinical treatment, and short-stay respite across more than 100 locations in Gelderland. The organization operates specialized educational care schools, brain injury expertise centers, sensory experience facilities, and adapted-sports programs alongside recognized intervention methodologies such as HouVast, LACCS, and Hersenz.
Product overview
Siza is a Dutch healthcare organization providing comprehensive care and support services to approximately 3,500 people with physical, intellectual, or multiple disabilities and individuals with acquired brain injury (NAH). The organization operates over 100 locations across Gelderland with approximately 2,500 employees. Services include residential living support (ranging from independent living to 24-hour care), outpatient home guidance, day activities, educational support, treatment services, and short-term respite care. Specialized offerings include the HouVast recognized methodology for parents with mild intellectual disabilities, De Kameleon educational care school for children with severe disabilities, Expertisecentrum NAH for brain injury rehabilitation, De Belevenis sensory experience facility, and therapeutic technologies including VRelax virtual reality for stress reduction and various movement technologies.
Differentiator
Problem solved
Functional benefit
Brands
- De Belevenis: A sensory experience world with snoezel rooms for people and/or children with multiple disabilities or serious illness. A world where their possibilities are central.
- Bakkerij Van Eigen Deeg
- Fitlife
- SizaWerk
- Beweegteam 's Koonings Jaght
- Expertisecentrum NAH
Products and services
- Wonen (Living Support)
Quantifiable outcome
- HouVast intervention can help prevent or shorten child protection measures, keeping families together.
- +1 more outcomes
Companies that use Siza
Customer profileNamed customers1 record
Segments6 records
Ideal customer profiles4 records
Siza technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Siza partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core and minor.
- Stichting Het DorpcoreOne of two support foundations of Siza, established following the 1962 television fundraising event by Mies Bouwman for Het Dorp. The foundation provides financial support for Siza activities not funded by government, such as testing technological aids that help clients live more independently. Contact: Koen Gerritsen, [email protected], IBAN: NL29INGB0000811000.
- Stichting Vrienden van Het DorpcoreOne of two support foundations of Siza, providing financial support to clients who cannot access government social legislation. Examples include purchasing a computer, holiday costs, or entrance fees for zoo, theater, museum, or group outings. Contact: Laura Vis - Van Zadelhoff, [email protected], IBAN: NL91INGB0001123000. Website: www.vriendenvanhetdorp.nl.
- De OnderwijsspecialistencoreEducational specialists who work together with Siza caregivers at De Kameleon, a special school for children with severe intellectual disabilities and intensive care needs. Teachers and educational supporters collaborate with Siza care staff in an integrated education-care model.
- Landelijk Kenniscentrum LVBcoreSiza is a participant in the National Knowledge Center for Mild Intellectual Disability (LVB). As a participant, Siza actively contributes to knowledge development and professionalization in the field of mild intellectual disability, improving the quality of support and care for these clients.
- De Lichtenbeek (School)minorGBJ Kleurrijk (after-school care) works together with De Lichtenbeek school for children aged 4-12 with disabilities.
- Het Prisma (School)minorGBJ Kleurrijk works together with Het Prisma school for children aged 12-18, using the 'begeleid ontdekkend leren' (guided discovery learning) method for people with intellectual disabilities.
- Stichting SutfeneminorDe Lunette in Zutphen works together with care and nursing services of Stichting Sutfene, who also provide night care services at that location.
- Portaal (Housing Corporation)coreElderburen is a housing cooperative developed with housing corporation Portaal, with 50 apartments for regular residents (55+) and 20 Siza apartments for people with mild intellectual disability making a next step toward independent living.
- Oostwest and Van Wijnen (Property Developers)coreElderburen was specially designed and developed by Oostwest and Van Wijnen with 'encounter' as a key principle, for residents who actively want to contribute to their living community.
- Restore (Kringloopwinkel Ede)minorDuurSaam Recycle division checks games and puzzles for completeness so they can be sold at Restore secondhand shop in Ede.
- Speelgoedbankwinkel WageningenminorDuurSaam Recycle division checks and cleans toys for the Speelgoedbankwinkel in Wageningen to give to children in need.
- Leger des Heils (Salvation Army)minorDuurSaam Recycle division collects, sorts, and checks clothing for the Leger des Heils (Salvation Army).
- Nederlands OpenluchtmuseumminorBakkerij Van Eigen Deeg produces artisanal and high-quality pastry products for the Dutch Open-Air Museum and Sportpark Papendal.
- Sportpark PapendalminorBakkerij Van Eigen Deeg produces artisanal and high-quality pastry products for Sportpark Papendal.
- Expertisecentrum William SchrikkerminorHouVast intervention for parents with mild intellectual disability was developed by Expertisecentrum William Schrikker. Siza caregivers have completed training to become certified to offer HouVast in Siza's service area.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Siza competitors and assessment
Company assessmentRegional players
- Talant: Friesland-based Dutch care provider for people with intellectual disabilities offering residential, day, and work services — comparable service offering to Siza but operating in a different Dutch province without direct competition in Gelderland.
Direct peers
- ASVZ: Dutch care organization providing residential, ambulatory, and day services for people with intellectual disabilities and behavioral challenges — directly comparable to Siza's EMB/MVB/EVB+ severe intellectual disability focus and 24-hour residential model.
- 's Heeren Loo: One of the largest Dutch care providers for people with intellectual disabilities, operating across the Netherlands with residential, ambulatory, and day services — directly comparable to Siza's full service mix across physical, intellectual, and severe multiple disabilities.
- ORO: Dutch non-profit providing residential, ambulatory, and supported work for people with intellectual and physical disabilities in Brabant — directly comparable service portfolio and non-profit funding model to Siza.
- Pluryn: Dutch organization providing youth care, disability support, and specialized education — directly comparable to Siza's Jeugdwet-funded youth/family services and De Kameleon Onderwijszorggroep model.
- Middin: Zuid-Holland Dutch care provider for people with intellectual disabilities and autism, offering residential support and home guidance — comparable to Siza's home-based Begeleiding Thuis services and disability population focus.
- Dichterbij: Gelderland-based Dutch care provider focused on intellectual disabilities and autism support — directly comparable to Siza's intellectual disability and autism segments within the same regional care market.
- Koraal Groep: Limburg-based Dutch care provider with residential, education, and treatment services for children and adults with disabilities — directly comparable to Siza's integrated care-education model (De Kameleon) and special education offerings.
- Cello: Brabant-based Dutch organization offering supported living, day activities, and work reintegration for people with intellectual disabilities — directly comparable to Siza's independent living, sheltered work, and re-integration services.
- Philadelphia: Dutch non-profit supporting people with intellectual and/or visual disabilities through residential care, home support, and day activities across multiple provinces — directly comparable service portfolio and Wlz/Wmo funding model to Siza.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Siza social profiles
Digital presenceSiza financial estimates
Financial estimateRevenue estimate
Valuation estimate
Siza leadership team
Management profileNumber of profiles
Siza subsidiaries and ownership
Company hierarchySubsidiaries2 records
Siza funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Siza M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Siza
What does Siza do?
Siza delivers integrated care and support services to people with physical, intellectual, multiple disabilities, and acquired brain injury (NAH) through residential living, home guidance, day activities, learning and working programs, clinical treatment, and short-stay respite across more than 100 locations in Gelderland. The organization operates specialized educational care schools, brain injury expertise centers, sensory experience facilities, and adapted-sports programs alongside recognized intervention methodologies such as HouVast, LACCS, and Hersenz.
Is Siza a public or private company?
Siza is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was Siza founded?
Siza was founded in -1. It employs 1,001 to 5,000 people.
Where is Siza based?
Siza is headquartered in Arnhem, Netherlands, in the Europe region.
How does Siza make money?
Six revenue lines are on record. Government-Funded Healthcare (Wlz) is the primary driver. The others are municipal Care Funding (Wmo), youth Act Services (Jeugdwet), personal Budget (Pgb), UWV Work Reintegration and donations and Legacies.
Who are Siza's main competitors?
Talant is listed as a regional player. Direct peers are ASVZ, 's Heeren Loo, ORO, Pluryn, Middin, Dichterbij, Koraal Groep, Cello and Philadelphia.
Does Siza have an API?
No public API is recorded for Siza.
What industry is Siza in?
Siza's product category is Disability Care Services. Its primary akta.pro industry code is HLAFAFAD, Long-Term Care Rehabilitation Centers, with a secondary code of HSABAGAI, Respite Care for Adults with Disabilities / Special Needs. Its NAICS code is 62321 and its SIC code is 8050.