Tumult

What Tumult does

Tumult is a Dutch educational publisher that provides a comprehensive mentorship materials ecosystem for secondary schools (voortgezet onderwijs) in the Netherlands, serving vmbo, havo, and vwo institutions. The company develops curriculum-aligned physical workbooks covering study skills (studievaardigheden), social-emotional skills (sociaal-emotionele vaardigheden), career orientation (LOB), and cultural arts (CKV), built around continuous learning lines (doorlopende leerlijnen) mapped to SLO learning trajectories and Dutch core objectives. Beyond printed materials, the platform includes a digital content library delivered through tiered online licenses (Start, Plus, Pro, PlusPro), interactive whiteboard lessons (digibordlessen), a weekly themed lesson planner (Tumult Deze Week), parent resources (Tumult voor Ouders), and a compact mentor method for first-year students (Tumult in de Brugklas Compact). The Tumult Academy blends online learning paths with on-site training sessions delivered by a team of named trainer-consultants, and Tumult op Maat offers custom-printed workbooks assembled from the school's catalog selection. CRKBO registration enables VAT-exempt training delivery, and over 200 schools across the Netherlands reportedly use Tumult materials.

Tumult operates a multi-revenue model combining recurring digital license subscriptions, one-time physical workbook sales through its own webshop, custom publishing projects, and professional services including Werken met Tumult training (€1,295 per session for up to 15 participants) and personalized coaching trajectories. Distribution is hybrid: self-serve digital access via the Entree SSO for Dutch schools, e-commerce for workbooks, and consultative direct sales for custom publishing and training. Go-to-market is product-led, anchored by free Start licenses, trial Plus licenses, downloadable sample materials, and a content marketing apparatus comprising a blog, newsletter, podcast (Schoolgeluk), social channels, and annual events such as Nationale Mentorendag. The company is privately held, founder-managed, headquartered in Amsterdam, and operates exclusively in the Netherlands with no disclosed funding or institutional investors.

Name

Tumult

Legal name

Tumult

Website

https://tumult.nl

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Tumult is a Dutch educational publisher that provides curriculum-aligned mentorship materials, including physical workbooks, digital licenses, training, and custom publishing, for secondary schools (vmbo, havo, vwo) across the Netherlands, serving over 200 schools.

Ownership category

akta.pro rank

Product category

Educational Publishing

NAICS

Educational Support Services (611710)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Virtual School Course Providers (Single-Course/Part-Time Enrollment) (EDAJADAE)

akta.pro secondary industry

Career & Technical Education (CTE) & Trade Skills Media (EDAGALAG)

Keywords

• Mentorship curriculum
• Educational publishing
• Study skills materials
• Social-emotional learning
• Career orientation programs

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Digital Subscriptions: Tiered online license subscriptions (Start, Plus, Pro, PlusPro) providing access to digital lesson materials, workbooks, and professional development content. Schools purchase licenses for their mentor teams.
2. Physical Workbooks: Printed workbooks for study skills, social-emotional skills, LOB, and CKV sold through the Tumult webshop. Also available as combipackages combining different titles at reduced prices.
3. Training Services: On-site training programs including 'Werken met Tumult' training (€1,295 for up to 15 participants) and personalized coaching trajectories. Also includes Academy support with half-yearly evaluations.
4. Custom Publishing: Tumult op Maat customized workbooks printed on demand for individual schools, with pricing based on volume (more mentors = lower price per license).

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels7 records

Core offering

Tumult is a Dutch educational publisher that develops, publishes, and distributes mentor lesson materials and workbooks for secondary schools (vmbo, havo, vwo) in the Netherlands. The company sells physical workbooks covering study skills, social-emotional skills, career orientation (LOB), and cultural arts (CKV), complemented by tiered digital online licenses, on-site mentor training programs, and customized workbook publishing for individual schools.

Product overview

Tumult is a Dutch educational publisher providing a comprehensive mentorship materials ecosystem for secondary schools (VO). The offering is organized as a platform-plus-modules architecture: the core consists of physical workbooks (Tumult Werkboeken) covering Study Skills, Social-Emotional Skills, LOB (Career Orientation), and CKV (Cultural Arts), complemented by digital online licenses (Tumult Online Licenties) in tiers (Start, Plus, Pro, PlusPro), mentor training programs (Tumult Mentortrainingen), and the Tumult Academy blended support program. Additional modules include Tumult Deze Week (weekly themed lessons), Tumult op Maat (custom-printed workbooks), and Tumult voor Ouders (parent resources). Tumult in de Brugklas Compact offers a streamlined version for first-year students. The products serve vmbo, havo, and vwo schools across the Netherlands with over 200 schools trusting their materials.

Differentiator

Problem solved

Functional benefit

Brands

• Tumult Academy: Training and professional development program for mentors with online learning paths and live training sessions.
• Tumult in de Brugklas Compact
• Tumult LOB
• Tumult SEV (Sociaal-emotionele vaardigheden)
• Tumult Studievaardigheden
• Tumult CKV
• Tumult Deze Week

Products and services

• Tumult Sociaal-emotionele vaardigheden (Social-Emotional Skills) Physical workbooks helping lower-grade students (vmbo, havo, vwo) develop self-confidence, collaboration, and social interaction skills through mentor-led lessons.
• Tumult Studievaardigheden (Study Skills) Continuous learning program of ready-made mentor lessons helping students plan, learn, handle information, present, and collaborate effectively.
• Tumult LOB (Loopbaanbegeleiding - Career Orientation)

Named customers2 records

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability2 records

Feature5 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Zwijsen: Zwijsen is a Dutch educational publisher known for primary-school literacy and methodology, plus secondary supplementary content. Comparable to Tumult as a Netherlands-based educational publisher selling method-based materials to schools, though Zwijsen's center of gravity is primary literacy rather than secondary mentorship.
• Boom Leren: Boom Leren is the education division of Boom uitgevers, publishing print and digital learning materials across Dutch secondary and vocational education. Comparable to Tumult as a Netherlands-based publisher of method-based content for the same school segments.
• Noordhoff Uitgevers: Noordhoff is a long-standing Dutch educational publisher covering core subjects, vocational tracks, and digital learning tools for VMBO/HAVO/VWO. Comparable to Tumult in target market (Dutch secondary schools) and editorial depth, with a broader portfolio across multiple subject areas.
• Malmberg: Malmberg is one of the largest Dutch educational publishers (part of Sanoma), offering full curriculum packages across primary, secondary, and vocational education. Comparable to Tumult as a Dutch K-12 publisher selling supplemental and core content to the same schools, but at much greater scale and breadth.
• ThiemeMeulenhoff: ThiemeMeulenhoff is a major Dutch publisher of textbooks and digital learning materials for secondary and vocational education. Directly comparable to Tumult in serving the same Dutch school segments with blended print and digital offerings, though at significantly larger scale.

Direct peers

• Learnbeat: Learnbeat is a Dutch digital learning platform providing method-independent practice content and adaptive exercises for VMBO/HAVO/VWO. Comparable to Tumult as a digital-first supplier of K-12 supplemental content to Dutch secondary schools, with overlapping distribution via school procurement.
• LessonUp: LessonUp is a Dutch interactive lesson platform allowing teachers to build, share, and deliver digital lessons via interactive whiteboards. Comparable to Tumult in delivering digital mentor/lesson content to Dutch secondary schools, with overlapping functionality in digibord-style interactive lessons.

Emerging players

• Squla: Squla is a Dutch online practice platform offering gamified educational content primarily for primary school children. Adjacent to Tumult as a Dutch digital supplemental-learning provider; comparable in business model (subscription, school sales) but serves primary rather than secondary students.

Regional players

• Edu'Actief: Edu'Actief is a Dutch publisher focused on vocational (MBO) and secondary education methods, including learning-line approaches and teacher support. Comparable to Tumult in building continuous learning lines and supporting Dutch teachers with structured lesson content.

Others

• Heutink Educatief: Heutink is a leading Dutch distributor of educational materials and supplies, serving the same schools as Tumult. Comparable as a channel partner and adjacent ecosystem player in Dutch K-12 instructional materials distribution.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCyhEMNYxbviD3Mr4VGhvung
• Facebookfacebook.com/TumultNL
• LinkedInlinkedin.com/company/uitgeverij-tumult
• Instagraminstagram.com/tumult.nl

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Tumult