# The 50 largest foundations in the Netherlands

Tamtam tracks 122 foundations headquartered in the Netherlands. This list ranks the 50 largest by number of employees on LinkedIn, led by SMK, Stichting Philadelphia Zorg and Holland Casino. Their median headcount is 492. Half of them were founded in 1988 or later. The most common headquarters are Amsterdam (8), The Hague (7) and Rotterdam (3).

These Dutch foundations operate across diverse sectors, with a significant presence in healthcare, education, and social services. Many are large organizations, reflecting their role in public welfare and infrastructure. Notable examples include Stichting Philadelphia Zorg, which supports individuals with intellectual disabilities, and SMK, focused on certification for sustainable business practices. Other significant foundations are Holland Casino, operating entertainment venues, and Flynth, a major accounting and advisory service provider. The list also features specialized entities like NLR - Netherlands Aerospace Centre, developing aviation and space technologies.

A clear pattern emerges with a strong emphasis on social impact and public good. Multiple foundations, such as IrisZorg and Prinsenstichting, are dedicated to providing care and support for vulnerable populations. Education is also well-represented by foundations like Lucas Onderwijs and Onderwijsstichting MOVARE. This concentration highlights a robust non-profit and public service sector within the Netherlands.

🇳🇱 Netherlands · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [SMK](https://www.tamtam.ai/c/smk) (smk.nl)<br>The company develops and manages certification criteria for sustainable business practices, involving various stakeholders to ensure reliability and transparency in environmental certifications | Renewables & Environment | 🇳🇱 The Hague / Den Haag | 5,654 | 1992 |
| 2 | [Stichting Philadelphia Zorg](https://www.tamtam.ai/c/stichting-philadelphia-zorg) (philadelphia.nl)<br>The company provides support for people with intellectual disabilities through residential, home, day care, and work training programs, emphasizing independence and individualized care | Hospitals and Health Care | 🇳🇱 Amersfoort | 4,534 | 1956 |
| 3 | [Holland Casino](https://www.tamtam.ai/c/holland-casino) (corporate.hollandcasino.nl)<br>An entertainment company in the Netherlands operating 14 casinos, offering games, catering, and a responsible gaming environment with high payout percentages | Gambling Facilities and Casinos | 🇳🇱 Hoofddorp | 2,521 | 1976 |
| 4 | [Flynth](https://www.tamtam.ai/c/flynth) (flynth.nl)<br>A leading Dutch accounting and advisory service provider focused on entrepreneurs, with a unique organizational structure and passionate, team-oriented employees | Accounting | 🇳🇱 Arnhem | 1,842 |  |
| 5 | [Blender](https://www.tamtam.ai/c/blender) (blender.org)<br>An independent organization with a spin-off corporation, employing 15 people to develop Blender software and creative projects for production environments | Movies and Sound Recording | 🇳🇱 Amsterdam | 1,634 | 2002 |
| 6 | [IrisZorg](https://www.tamtam.ai/c/iriszorg) (iriszorg.nl)<br>This organization provides addiction treatment, social support, housing, work opportunities, and reintegration services to individuals of all ages and backgrounds | Mental Health Care | 🇳🇱 Arnhem | 1,207 | 2007 |
| 7 | [NLR - Netherlands Aerospace Centre](https://www.tamtam.ai/c/nlr-netherlands-aerospace-centre) (nlr.org)<br>The company focuses on developing technologies for aviation and space to make air operations safer, more sustainable, and efficient | Aviation and Aerospace Component Manufacturing | 🇳🇱 Amsterdam | 1,083 | 1919 |
| 8 | [Kind&co ludens](https://www.tamtam.ai/c/kind-and-co-ludens) (kindencoludens.nl)<br>Creating a safe environment for children to learn and develop through play, experimentation, and personal exploration Focused on child and employee well-being, with a commitment to continuous learning and social impact | Individual and Family Services | 🇳🇱 Houten | 959 |  |
| 9 | [Stichting DSI](https://www.tamtam.ai/c/stichting-dsi) (dsi.nl)<br>The company based in Amsterdam focuses on strengthening consumer trust in the financial sector by certifying professionals in DSI registers They prioritize competence and integrity | Financial Services | 🇳🇱 Amsterdam | 902 | 1999 |
| 10 | [Lucas Onderwijs](https://www.tamtam.ai/c/lucas-onderwijs) (lucasonderwijs.nl)<br>Lucas Onderwijs is a foundation for primary and secondary education, operating schools in various municipalities with a focus on quality, diversity, and community partnerships | Primary and Secondary Education | 🇳🇱 The Hague | 774 |  |
| 11 | [Odion](https://www.tamtam.ai/c/odion) (odion.nl)<br>The company focuses on supporting individuals with disabilities to live their lives to the fullest and reach their full potential | Hospitals and Health Care | 🇳🇱 Wormer | 754 |  |
| 12 | [Stichting Radar](https://www.tamtam.ai/c/stichting-radar) (radar.org)<br>This company in Zuid-Limburg supports individuals with disabilities in living fulfilling lives through personal well-being, development, and community interaction | Hospitals and Health Care | 🇳🇱 Maastricht | 747 |  |
| 13 | [TBI](https://www.tamtam.ai/c/tbi) (tbi.nl)<br>A leading player in engineering, construction, and infrastructure, with a focus on delivering innovative and sustainable solutions, investing in social initiatives for a better future | Construction | 🇳🇱 Rotterdam | 719 | 1982 |
| 14 | [Prinsenstichting](https://www.tamtam.ai/c/prinsenstichting) (prinsenstichting.nl)<br>Providing daily support for individuals with mental disabilities through a comprehensive package of high-quality healthcare, residency, activities, and home support | Hospitals and Health Care | 🇳🇱 Purmerend | 717 | 1964 |
| 15 | [Onderwijsstichting MOVARE](https://www.tamtam.ai/c/onderwijsstichting-movare) (movare.nl)<br>MOVARE strives for high-quality education by adapting to the changing educational landscape with innovative approaches for 11,700 students across 47 schools | Education Administration Programs | 🇳🇱 Landgraaf | 709 |  |
| 16 | [NOVO](https://www.tamtam.ai/c/novo-assen) (cosis.nu)<br>NOVO provides support, guidance, and care for people with intellectual disabilities through various services across Groningen and Drenthe provinces | Hospitals and Health Care | 🇳🇱 Assen | 700 |  |
| 17 | [De Haagse Scholen](https://www.tamtam.ai/c/de-haagse-scholen) (dehaagsescholen.nl)<br>A foundation in The Hague managing 51 diverse public schools, offering various educational concepts to meet individual learning needs and preparing students for the future | Primary and Secondary Education | 🇳🇱 The Hague | 682 |  |
| 18 | [Warande](https://www.tamtam.ai/c/warande) (warandeweb.nl)<br>Warande offers customized living, services, and care for seniors on the Utrechtse Heuvelrug and Houten, focusing on vitality, individual preferences, and a cultural approach | Hospitals and Health Care | 🇳🇱 Houten | 627 | 1963 |
| 19 | [Zorg in Oktober](https://www.tamtam.ai/c/zorg-in-oktober) (zorginoktober.nl)<br>Providing tailored care to vulnerable elderly in the Kempen, Veldhoven, and Aalst-Waalre regions, offering various services including nursing, rehabilitation, palliative care, and more | Hospitals and Health Care | 🇳🇱 Bladel | 620 |  |
| 20 | [Raphaëlstichting](https://www.tamtam.ai/c/raphaelstichting) (raphaelstichting.nl)<br>The organization provides care for individuals with intellectual disabilities, offering services in psychiatry and nursing homes using an anthroposophical approach | Hospitals and Health Care | 🇳🇱 Schoorl | 594 |  |
| 21 | [IKEA Foundation](https://www.tamtam.ai/c/ikea-foundation) (ikeafoundation.org)<br>Strategic philanthropy focused on combating poverty and climate change through grants to improve family livelihoods and protect the planet | Non-profit Organizations | 🇳🇱 Leiden | 551 | 1982 |
| 22 | [ICTU](https://www.tamtam.ai/c/ictu) (ictu.nl)<br>ICTU helps governments improve their services through innovative, high-quality ICT solutions, supporting collaboration between government levels and achieving concrete results for citizens and businesses | IT Services and IT Consulting | 🇳🇱 The Hague | 544 | 2001 |
| 23 | [L1](https://www.tamtam.ai/c/l1) (l1.nl)<br>regional public media organization serving Limburg province with news, sports, and live events across radio, TV, and digital platforms | Broadcast Media Production and Distribution | 🇳🇱 Maastricht | 532 | 1999 |
| 24 | [FCB](https://www.tamtam.ai/c/fcb) (fcb.nl)<br>The company supports workers and employers in social work, youth care, and childcare by providing tools and resources for recruitment, retention, and workplace safety | Non-profit Organizations | 🇳🇱 Utrecht | 511 | 2005 |
| 25 | [IBFD](https://www.tamtam.ai/c/ibfd) (ibfd.org)<br>The company specializes in advancing cross-border tax expertise through international tax information, independent research, training, and government consultancy services | Information Services | 🇳🇱 Amsterdam | 492 | 1938 |
| 26 | [Het Hooghuis](https://www.tamtam.ai/c/het-hooghuis) (hethooghuis.nl)<br>A group of six unique schools providing education in Oss, helping students discover and develop their talents, fostering self-awareness and satisfaction in a nurturing environment | Education Administration Programs | 🇳🇱 Oss | 483 | 2000 |
| 27 | [Paradiso](https://www.tamtam.ai/c/paradiso) (paradiso.nl)<br>A cultural institution founded in 1968 as a creative haven, growing into a popular music venue, nightclub, and cultural center over the years | Musicians | 🇳🇱 Amsterdam | 431 | 1968 |
| 28 | [SCOH Onderwijs en Opvang](https://www.tamtam.ai/c/scoh-onderwijs-en-opvang) (scoh.nl)<br>A educational foundation in The Hague area with 32 primary schools, 5 specialized schools, and 21 preschools, focusing on children's development from toddler to adolescent | Primary and Secondary Education | 🇳🇱 The Hague | 430 |  |
| 29 | [Mutsaersstichting](https://www.tamtam.ai/c/mutsaersstichting) (mutsaersstichting.nl)<br>A fullservice center in Noord- en Midden-Limburg offering youth care, mental health services, well-being support, and education, making it unique in the Netherlands | Hospitals and Health Care | 🇳🇱 Venlo | 430 |  |
| 30 | [Pompestichting](https://www.tamtam.ai/c/pompestichting) (pompestichting.nl)<br>The company provides treatment, care, and security to individuals involved with the justice system, focusing on crime prevention and safe reintegration into society | Mental Health Care | 🇳🇱 Nijmegen | 413 | 1966 |
| 31 | [Leger des Heils Rijnmond Zuidwest](https://www.tamtam.ai/c/leger-des-heils-rijnmond-zuidwest) (legerdesheils.nl)<br>The organization provides professional and personal fulfilling work in nursing, social services, and advocacy with a focus on individual care and development opportunities | Mental Health Care | 🇳🇱 Rotterdam | 407 | 1865 |
| 32 | [Inforsa](https://www.tamtam.ai/c/inforsa) (inforsa.nl)<br>Inforsa provides intensive treatment and reintegration programs for adults with complex psychiatric, addiction, and forensic issues, integrating specialized care services | Mental Health Care | 🇳🇱 Amsterdam | 407 | 2009 |
| 33 | [Aves](https://www.tamtam.ai/c/aves) (aves.nl)<br>Aves is a foundation for primary education in the Noordoostpolder, Vollenhove, and Kampen, managing 34 schools of various denominations | Primary and Secondary Education | 🇳🇱 Emmeloord | 406 | 2010 |
| 34 | [Stanislascollege](https://www.tamtam.ai/c/stanislascollege) (stanislascollege.nl)<br>A diverse school community offering education from practical to gymnasium levels, rooted in Catholic tradition or interconfessional identity, emphasizing Ignatian Pedagogy | Primary and Secondary Education | 🇳🇱 Delft | 406 | 1948 |
| 35 | [Stichting Sint Jacob](https://www.tamtam.ai/c/stichting-sint-jacob) (sintjacob.nl)<br>Providing elderly with control over their daily lives by offering personalized care and services in Haarlem, Bloemendaal, Overveen, and Heemstede | Hospitals and Health Care | 🇳🇱 Haarlem | 405 |  |
| 36 | [Stichting De Kindertelefoon](https://www.tamtam.ai/c/stichting-de-kindertelefoon) (kindertelefoon.nl)<br>A Dutch organization provides free confidential conversations for children, promoting empowerment, self-trust, and active citizenship through professional volunteers and referrals to specialized support | Civic and Social Organizations | 🇳🇱 Utrecht | 401 | 1979 |
| 37 | [Woonstichting Lieven de Key](https://www.tamtam.ai/c/woonstichting-lieven-de-key) (werkenbij.lievendekey.nl)<br>A housing organization in Amsterdam supporting residents and newcomers, constantly seeking innovation to contribute to the dynamic city | Real Estate | 🇳🇱 Amsterdam | 392 | 1868 |
| 38 | [WIJeindhoven](https://www.tamtam.ai/c/wijeindhoven) (wijeindhoven.nl)<br>An independent foundation providing first-line healthcare services on behalf of the municipality of Eindhoven | Civic and Social Organizations | 🇳🇱 Eindhoven | 390 | 2015 |
| 39 | [PCBO Apeldoorn](https://www.tamtam.ai/c/pcbo-apeldoorn) (pcboapeldoorn.nl)<br>PCBO Apeldoorn is an education organization with 27 diverse primary schools, offering development opportunities for teachers to grow professionally and excel in their careers | Primary and Secondary Education | 🇳🇱 Apeldoorn | 386 |  |
| 40 | [Qredits](https://www.tamtam.ai/c/qredits) (qredits.nl)<br>Supports starting existing entrepreneurs. Provides tools, personal coaching, and business loans up to €250,000. Helps make entrepreneurial dreams possible. | Financial Services | 🇳🇱 Almelo | 380 | 2009 |
| 41 | [Stichting Anton Constandse](https://www.tamtam.ai/c/stichting-anton-constandse) (antonconstandse.nl)<br>The organization supports people with serious mental health conditions to live as normally as possible through protective housing and home support, offering unique recovery assistance | Mental Health Care | 🇳🇱 The Hague | 372 | 1988 |
| 42 | [Lokalis](https://www.tamtam.ai/c/lokalis) (lokalis.nl)<br>This organization provides basic help to children and families, strengthening their ability to solve problems and promoting healthy and safe growth and development | Individual and Family Services | 🇳🇱 Utrecht | 372 | 2014 |
| 43 | [Agora Stichting voor Bijzonder Primair Onderwijs in de Zaanstreek](https://www.tamtam.ai/c/agora-stichting-voor-bijzonder-primair-onderwijs-in-de-zaanstreek) (agora.nu)<br>Agora manages 25 primary schools in the Zaanstreek region, focusing on providing exceptional primary education | Education | 🇳🇱 Zaandam | 370 |  |
| 44 | [KNCV TB Plus](https://www.tamtam.ai/c/kncv-tb-plus) (tuberculose.nl)<br>A Dutch NGO working to eliminate tuberculosis through evidence generation, technical assistance, policy development, and advocacy at national and global levels | Non-profit Organizations | 🇳🇱 The Hague | 369 | 1903 |
| 45 | [Climate KIC](https://www.tamtam.ai/c/climate-kic) (climate-kic.org)<br>Leading climate innovation agency mobilizing systems change across regions, cities, and businesses to bridge climate commitments and reality globally. | Environmental Services | 🇳🇱 Amsterdam | 367 | 2010 |
| 46 | [SALTO Eindhoven](https://www.tamtam.ai/c/salto-eindhoven) (salto-eindhoven.nl)<br>SALTO is a major educational foundation in Eindhoven, managing 20 primary schools and 2 special education schools, serving 36% of students | Education Administration Programs | 🇳🇱 Eindhoven | 361 |  |
| 47 | [Leger des Heils Noordoost](https://www.tamtam.ai/c/leger-des-heils-noordoost) (legerdesheils.nl)<br>The organization provides support to individuals facing complex issues, offering help in social services, youth & WMO, forensic care, and WLZ in northern provinces | Non-profit Organizations | 🇳🇱 Zwolle | 360 |  |
| 48 | [Nuffic](https://www.tamtam.ai/c/nuffic) (nuffic.nl)<br>Organization promoting internationalization in education by providing expertise, services, and knowledge worldwide to ensure all students have global opportunities for success | Education Administration Programs | 🇳🇱 The Hague | 353 | 1952 |
| 49 | [SARO - Samen Ambitieus Rotterdams Onderwijs](https://www.tamtam.ai/c/saro-samen-ambitieus-rotterdams-onderwijs) (wijzijnsaro.nl)<br>SARO provides diverse education levels and concepts for children and youth in Rotterdam, fostering growth, learning, and equal opportunities | Primary and Secondary Education | 🇳🇱 Rotterdam | 346 | 2024 |
| 50 | [Spaarnesant](https://www.tamtam.ai/c/spaarnesant) (spaarnesant.nl)<br>Managing public primary education in Haarlem, providing educational services and support to schools in the community | Primary and Secondary Education | 🇳🇱 Haarlem | 345 | 2009 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

## More company lists in the Netherlands

- [The largest companies in the Netherlands](https://www.tamtam.ai/l/largest-companies-netherlands) (12,236)
- [Multinational companies in the Netherlands](https://www.tamtam.ai/l/multinational-companies-netherlands) (2,510)
- [Retail chains in the Netherlands](https://www.tamtam.ai/l/retail-chains-netherlands) (1,138)
- [Transportation, Logistics, Supply Chain and Storage companies in the Netherlands](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-netherlands) (825)
- [Logistics companies in the Netherlands](https://www.tamtam.ai/l/logistics-companies-netherlands) (791)
- [Manufacturers in the Netherlands](https://www.tamtam.ai/l/manufacturers-netherlands) (770)
- [Critical infrastructure operators in the Netherlands](https://www.tamtam.ai/l/critical-infrastructure-operators-netherlands) (765)
- [SaaS companies in the Netherlands](https://www.tamtam.ai/l/saas-companies-netherlands) (758)
- [Software Development companies in the Netherlands](https://www.tamtam.ai/l/software-development-companies-netherlands) (748)
- [Professional services firms in the Netherlands](https://www.tamtam.ai/l/professional-services-firms-netherlands) (739)
- [Companies with in-house R&D in the Netherlands](https://www.tamtam.ai/l/r-and-d-companies-netherlands) (738)
- [IT Services and IT Consulting companies in the Netherlands](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-netherlands) (690)
- [Financial services firms in the Netherlands](https://www.tamtam.ai/l/financial-services-firms-netherlands) (688)
- [Healthcare providers in the Netherlands](https://www.tamtam.ai/l/healthcare-providers-netherlands) (675)
- [Hospitals and Health Care companies in the Netherlands](https://www.tamtam.ai/l/hospitals-and-health-care-companies-netherlands) (620)
- [Family-owned companies in the Netherlands](https://www.tamtam.ai/l/family-owned-companies-netherlands) (617)
- [IT services companies in the Netherlands](https://www.tamtam.ai/l/it-services-companies-netherlands) (585)
- [Financial Services companies in the Netherlands](https://www.tamtam.ai/l/financial-services-companies-netherlands) (572)
- [Consulting firms in the Netherlands](https://www.tamtam.ai/l/consulting-firms-netherlands) (568)
- [Hotel and hospitality groups in the Netherlands](https://www.tamtam.ai/l/hospitality-groups-netherlands) (514)
- [Truck Transportation companies in the Netherlands](https://www.tamtam.ai/l/truck-transportation-companies-netherlands) (514)
- [Hardware manufacturers in the Netherlands](https://www.tamtam.ai/l/hardware-companies-netherlands) (447)
- [Distributors and wholesalers in the Netherlands](https://www.tamtam.ai/l/distributors-and-wholesalers-netherlands) (427)
- [Companies with a mobile app in the Netherlands](https://www.tamtam.ai/l/companies-with-mobile-app-netherlands) (411)

## The same list elsewhere in Netherlands

- [Foundations in North Holland](https://www.tamtam.ai/l/foundations-north-holland) (40)
- [Foundations in South Holland](https://www.tamtam.ai/l/foundations-south-holland) (30)

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Source: https://www.tamtam.ai/l/foundations-netherlands