Sardes

What Sardes does

Sardes is a Utrecht-based research and advisory organization founded in 1992 that operates as part of Stichting CAOP. It supports Dutch education, childcare, and government clients with research, policy advisory, evaluation, and process facilitation. Its client base spans all 342 Dutch municipalities (via the GOAB consortium co-led with Oberon and CED-Groep), school boards, childcare organizations, national ministries (OCW, SZW), and cultural/knowledge NGOs including Stichting Lezen, LKCA, and Stichting Probiblio. The organization focuses on equal educational opportunities, language development, early childhood education quality, and inclusion/newcomer education.

Sardes' core offerings are organized around a portfolio of proprietary methodologies (Samen Doordenken, Taal100, Dubbelslag/TVO, ex-ante impact analysis) and recurring services such as VVE quality audits, multi-year national monitoring (e.g., School en Omgeving, BoekStartcoach evaluation), the Gemeentelijke Onderwijswerkplaats training program, and bespoke advisory mandates. Its methodology stack is validated through academic partnerships (Universiteit Utrecht, Leiden University, SEO Economisch Onderzoek) and embedded in Dutch practice through training cohorts and free publications. There is no proprietary technology platform; the 'product' is intellectual property in the form of research-validated methodologies, published frameworks, and human-delivered training and advisory.

Revenue is generated through two streams: commissioned government research and advisory contracts (project-based, institutional, sourced from ministries, municipalities, and school boards) and fee-for-service professional development training (priced per participant, e.g., €980 for VE-coach training, €2,950 for the five-day municipal program). GTM is relationship-driven and public-sector oriented, leveraging the GOAB distribution network, published research, conferences, and a Mailchimp-distributed newsletter. The organization is funded entirely through client engagements and grant-funded projects (e.g., Nederlands Letterenfonds for Peer Power), with no external venture capital or public funding rounds.

Name

Sardes

Legal name

Sardes

Website

https://sardes.nl

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

Sardes is a Dutch research and advisory organization, founded in 1992 and part of Stichting CAOP, that supports municipalities, schools, childcare organizations, and national ministries with educational research, policy evaluation, professional development training, and methodology licensing.

Ownership category

akta.pro rank

Product category

Education Research and Advisory Services

NAICS

Educational Support Services (611710), Administration of Education Programs (92311)

SIC

Services-Educational Services (8200), Services-Management Consulting Services (8742), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Curriculum, Standards & Assessment Policy Research (EDADADAH)

akta.pro secondary industries

Monitoring, Evaluation, Research & Learning (MERL) (BPADAEAB), National/State Curriculum & Standards Authorities (EDADAEAA), Education Systems & Skills Technical Assistance (BPADAEAI)

Keywords

• Education research
• Educational advisory
• Early childhood education
• Language education
• Policy consultancy

Headquarters

HQ city

Utrecht

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Government Research and Advisory Contracts: Sardes generates revenue primarily through commissioned research, policy advisory, and evaluation contracts from Dutch government ministries (OCW, SZW), municipalities, school boards, and childcare organizations. Revenue is project-based and institutional, typical of a public-sector knowledge organization.
2. Professional Development and Training Services: Sardes delivers fee-for-service training programs to schools, childcare organizations, and municipalities, including multi-day courses (e.g., 'Educatieve kwaliteit voor VE-coaches' at €980 per participant) and multi-session professionalization trajectories. Revenue is recognized per participant or per organization.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Sardes provides commissioned research, policy advisory, and process guidance for Dutch education, childcare, and government organizations. It delivers fee-for-service professional development training programs (e.g., Taal100, TVO, Samen Doordenken, VE-coach training), multi-year national monitoring studies, and VVE quality audits. As a partner in the GOAB consortium, it serves all 342 Dutch municipalities with knowledge circles, webinars, handbooks, and direct advisory support on educational disadvantage policy.

Product overview

Sardes is a Dutch research and advisory organization offering a portfolio of consulting services, training programs, and monitoring tools for education, childcare, and government sectors. The core offering includes research and advisory services (onderzoek en advies), professional training programs (such as Taal100, TVO, Samen doordenken, and VE-coach training), and various monitoring and evaluation projects. Key programs include the GOAB support trajectory for municipal education policy, the Peer Power Project for student-led reading promotion, and multi-year monitoring of national subsidy schemes. Services are delivered through direct consulting, group trainings, coaching, and published research reports and newsletters.

Differentiator

Problem solved

Functional benefit

Products and services

• Onderzoek en Advies (Research and Advisory) Commissioned research, policy advisory, and process guidance for Dutch municipalities, school boards, childcare organizations, and national ministries on educational policy, quality improvement, and program evaluation.
• GOAB-ondersteuningstraject Support trajectory for municipal education disadvantage policy (gemeentelijk onderwijsachterstandenbeleid), providing knowledge circles, webinars, handbooks, and practical products for municipalities and preschool education providers.
• Taal100 School-wide language methodology covering reading comprehension, vocabulary, reading promotion, and writing across grades 1-8, combining group sessions, observations, steering group alignment, internal coach training, and school-wide agreements for sustainable language improvement.
• Taalgericht Vakonderwijs (TVO) / Dubbelslag Language-oriented subject teaching (taalgericht vakonderwijs) for secondary education, helping subject teachers integrate language awareness into lessons and simultaneously advance content knowledge and language proficiency.
• Samen Doordenken Training Seven-month training on sustained shared thinking, consisting of five study meetings combined with group coaching, teaching early childhood education professionals to conduct longer, authentic, and challenging conversations with children.
• Educatieve kwaliteit voor VE-coaches Four-day group training for preschool education (VE) coaches to improve and sustain educational quality in childcare settings, with maximum 14 participants per cohort and an in-company option available.
• Taalstimulering bij absolute beginners Two-session organization-based training for pedagogical staff and early childhood teachers on supporting children who speak little or no Dutch, focusing on language development and interaction techniques.
• Gemeentelijke Onderwijswerkplaats Five-day deepening training for municipal policy advisors on educational disadvantage policy, youth policy, and inclusive education, offered jointly with Oberon at a central location in Utrecht.
• Peer Power Project Student-led reading promotion project where vmbo and practical education students form teams to design and execute initiatives that inspire their peers to read more.
• VVE-kwaliteitsaudits Quality audits for preschool and early childhood education locations, conducted for municipalities, school boards, and childcare organizations to assess educational quality.
• Meerjarige landelijke monitor School en Omgeving Multi-year national monitoring of the School and Environment subsidy scheme, tracking the implementation and impact of out-of-school activities for educational equality.
• Monitoring onderwijs aan Oekraïense leerlingen Ongoing monitoring research tracking educational participation and school careers of Ukrainian refugee students in the Netherlands.
• Procesbegeleiding Process guidance for school boards seeking to undertake improvement trajectories, including setting up professional learning communities and ensuring trajectory sustainability.

Quantifiable outcome

• Research from Universiteit Utrecht validates that professional interaction with children changes measurably under Sardes' 'Samen Doordenken' training — conversations become longer, more authentic, and more challenging.
• +2 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered major, core and minor.

• SEO Economisch OnderzoekmajorStrategic or Co-development Partner · 1 January 2023Sardes collaborated with SEO Economisch Onderzoek on multiple research projects, including: (1) the multi-year national monitor of School en Omgeving (August 2023–December 2025); (2) research on improving educational opportunities at the start of primary school; and (3) research on evidence-informed working in foundational education. SEO contributes economic research expertise to the partnership.
• OberoncoreStrategic or Co-development Partner · 1 January 2012Oberon is a key consortium partner with Sardes and CED-Groep in the GOAB (Gemeentelijk Onderwijsachterstandenbeleid) support consortium, which has served all 342 Dutch municipalities since 2012. The consortium provides knowledge circles, webinars, handbooks, and direct advisory support to municipalities and early childhood education providers on educational disadvantage policy. Sardes director Heleen Versteegen represents Sardes in this partnership.
• CED-GroepcoreStrategic or Co-development Partner · 1 January 2012CED-Groep is a consortium partner with Sardes and Oberon in the GOAB support consortium. Together the three organizations form the backbone of national municipal support for educational disadvantage policy, operating 6 regional networks across the Netherlands and serving all 342 municipalities.
• Stichting LezenmajorStrategic or Co-development PartnerStichting Lezen commissioned Sardes to evaluate the BoekStartcoach program. In 2025, 221 BoekStartcoaches were active on 331 consultation bureaus implemented by 71 libraries. Sardes conducted six case studies examining how libraries and consultation bureaus collaborate and the extent to which program objectives are met.
• LKCA (Landelijk Kennisinstituut Cultuureducatie)majorStrategic or Co-development PartnerLKCA commissioned Sardes to develop professional profiles for art/cultural education teachers across multiple settings: primary education and childcare, secondary education, and non-formal cultural education. These profiles serve as sector standards defining required competencies for cultural education professionals.
• Stichting ProbibliominorStrategic or Co-development PartnerProbiblio commissioned Sardes to conduct literature research on family-oriented approaches to broad basic skills (gecijferdheid, digitale vaardigheden, gezondheidsvaardigheden). Sardes and Probiblio, together with SPN, presented findings in a webinar on family-oriented approaches to basic skills.
• BoekStartcoaches (71 libraries)majorStrategic or Co-development PartnerAs part of the BoekStartcoach program commissioned by Stichting Lezen, Sardes works with 71 library organizations across the Netherlands that implement BoekStartcoach activities at 331 consultation bureaus. These libraries employ 221 BoekStartcoaches who promote early language development and reading aloud at well-baby clinics.
• Pharos (Kenniscentrum vluchtelingen en gezondheid)minorStrategic or Co-development PartnerPaulien Muller, senior researcher at Sardes, previously worked for Pharos. Sardes collaborates with Pharos on research related to education for newcomers and vulnerable groups, including the joint monitor on Ukrainian refugee education in the Netherlands.
• Universiteit Leiden (Chair of Lisa Gaikhorst)minorStrategic or Co-development PartnerSardes-CAOP hosted the inaugural lecture of Prof. Lisa Gaikhorst as Special Chair of Equal Educational Opportunities at Leiden University. Sardes facilitated an interactive seminar connecting practitioners, researchers, and policymakers to explore knowledge gaps in educational equality research.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Cito: Cito is the dominant Dutch educational measurement and testing organization; it serves the same Dutch education ecosystem (schools, ministries) as Sardes but operates at a much larger scale across assessment, rather than advisory.
• BMC: BMC is a large Dutch public-sector advisory firm that supports municipalities, schools, and childcare organizations with implementation and policy execution — overlapping with Sardes' municipal advisory work but at a broader, multi-domain scale.
• SLO (Stichting Leerplanontwikkeling): SLO is the Dutch national institute for curriculum development, working on standards and learning objectives for the same K-12 schools that Sardes advises — a broader incumbent in an adjacent part of the education-policy value chain.
• NJI (Nederlands Jeugdinstituut): NJI is the Dutch national knowledge institute for youth policy and practice; it commissions and conducts applied research overlapping with Sardes' young-child and inclusion agenda.

Direct peers

• Pharos: Pharos is a Dutch knowledge center on refugees and health that conducts research and advisory work on newcomer education — a domain where it directly competes with Sardes' Nieuwkomers portfolio.
• Verwey-Jonker Instituut: Verwey-Jonker Instituut is a Dutch applied research and advisory organization working on social and educational disadvantage themes, often commissioned by the same ministries and municipalities as Sardes.
• Oberon: Oberon is Sardes' direct consortium partner in the GOAB support trajectory and shares the same Dutch education policy, research, and advisory mandate across municipalities, making it the closest functional peer.
• CED-Groep: CED-Groep is the third member of the GOAB consortium alongside Sardes and Oberon; it delivers education research, training, and advisory services to schools, municipalities, and childcare organizations in the same Dutch market.
• SEO Economisch Onderzoek: SEO is a Dutch research and advisory firm that collaborates with Sardes on multi-year national monitors (School en Omgeving) and competes for commissioned policy-research mandates from Dutch ministries.

Emerging players

• LKCA (Landelijk Kennisinstituut Cultuureducatie): LKCA commissions Sardes for cultural-education professional profiles, but in adjacent domains (cultural and arts education research) it plays an overlapping research and knowledge-brokering role in Dutch education.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sardes

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sardes