Company lists · Data refreshed September 2026

Top 25 Education effectiveness consultants based in the Netherlands

RevenueBase identified 81 education effectiveness consultants headquartered in the Netherlands as of September 2026 and tracks 1,104 professional contacts across them, including 370 with verified work emails. Amersfoort is the largest hub.

This list covers education effectiveness consultants headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
81Companies
1,104Contacts tracked
370Verified emails
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The 25 largest education effectiveness consultants based in the Netherlands

Ranked by team size
Top 25 of 81 education effectiveness consultants based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to education effectiveness consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceApeldoorn, NetherlandsHQ checked Sep 19, 202651-200168 contacts →

Partial evidence

“IJsselgroep staat voor hoogwaardig educatief advies, begeleiding, opleiding en nascholing in voorschoolse educatie, primair en voortgezet onderwijs.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceHelmond, NetherlandsHQ checked Sep 19, 2026n/a167 contacts →

Indirect evidence

“Onderwijs Maak Je Samen is een inspirerend en landelijk opererend onderwijsadviesbureau.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceDen Haag, NetherlandsHQ checked Sep 19, 202651-200151 contacts →

Partial evidence

“Bij Bazalt Groep werken wij samen aan de kwaliteit van het onderwijs met training, coaching, advies en educatieve uitgaven.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceHelvoirt, NetherlandsHQ checked Sep 19, 202651-200125 contacts →

Indirect evidence

“KPC Groep: Verstand van leren, gevoel voor mensen KPC Groep is een landelijk opererend onderwijsadviesbureau.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202651-20083 contacts →

Indirect evidence

“Bij B&T werken gedreven mensen.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceRijswijk, NetherlandsHQ checked Sep 19, 202611-5068 contacts →

Indirect evidence

“Als hoogwaardig strategisch adviesbureau zijn wij gericht op het voortdurend beter maken van het onderwijs, bedrijven en professionals bij het realiseren van hun ambities.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 19, 202651-20058 contacts →

Indirect evidence

“Expertis gaat voor bewezen effectieve en duurzame schoolverbetering op jouw school.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceBilthoven, NetherlandsHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“De wereld om ons heen verandert snel en is complex.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceDe Meern, NetherlandsHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceZwolle, NetherlandsHQ checked Sep 19, 202651-20016 contacts →

Partial evidence

“Als consultants houden wij ons bezig met het professioneel begeleiden, opleiden en adviseren van docenten en management van scholen en onderwijsinstellingen binnen het primair…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceDriebergen, NetherlandsHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“Onderwijs.pro BV is een groeiend onderwijskundig adviesbureau.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceGieten, NetherlandsHQ checked Sep 19, 20261-1015 contacts →

Partial evidence

“The main focus of CLU is the quality of educational appliances, both folio and digital.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceTilburg, NetherlandsHQ checked Sep 19, 202651-20014 contacts →

Indirect evidence

“De Kracht ondersteunt onderwijsprofessionals en leerlingen met behulp van trainingen, coaching, begeleiding en advies.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceDronten, NetherlandsHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

“In Opbouw Sterk in Onderwijs In Opbouw geloofd in leren door doen.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceHouten, NetherlandsHQ checked Sep 19, 20261-1011 contacts →

Partial evidence

“De consultants van LinQue Consult ondersteunen bij onderwijsontwikkeling en onderwijsvraagstukken, begeleiden organisatieveranderingen, ondersteunen directie en management bij…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceSassenheim, NetherlandsHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“Goed onderwijs voor ieder kind: dat is onze missie.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceGouda, NetherlandsHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“O21 is een netwerkorganisatie.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceWaalre, NetherlandsHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Onze filosofie Via drie onderwijsmethodieken maakt EXOVA passend onderwijs voor iedereen mogelijk.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceDen Haag, NetherlandsHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“ONDERWIJSZAKEN is een onderwijsadviesbureau met ervaren coaches/trainers.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceMeppel, NetherlandsHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Klassicum biedt organisatie advies voor het primaire en voortgezet onderwijs.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceVught, NetherlandsHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Cube Consulting Onderwijs, de partner voor professioneel onderwijs.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Bruisend onderwijsadvies vanuit opleiding én ervaring.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidence's-hertogenbosch, NetherlandsHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Dienstencentrum Van Maerlant; via professionaliteit en passie naar progressie.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceRosmalen, NetherlandsHQ checked Sep 19, 202611-502 contacts →

Indirect evidence

“Onderwijsadvies met resultaat Hoe haalt u het maximale uit de ontwikkelmogelijkheden van leerlingen?”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Wij zijn Annemart Somers en Antoinette Dobbelmann, samen vormen wij OverBruggers.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 81 education effectiveness consultants based in the Netherlands

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Education effectiveness consultants based in the Netherlands at a glance

As of Sep 19, 2026
33.5%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
6.2%Largest-city concentration · Amersfoort
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
11
51-200
8
201-500
2

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 81 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among education effectiveness consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the Netherlands whose own description of what they do matches “education effectiveness consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names education effectiveness consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among education effectiveness consultants, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 370 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names education effectiveness consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many education effectiveness consultants are there based in the Netherlands?

RevenueBase identified 81 education effectiveness consultants headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Ijsselgroep, headquartered in Vg, tops this list with the largest team on record.

Which city has the most education effectiveness consultants?

Amersfoort leads with 5 headquartered companies, followed by Den Haag (5) and Rotterdam (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 370 verified decision-maker contacts tracked across these 81 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.