Company lists · Data refreshed September 2026

Top 25 Nonprofit consulting providers based in the Netherlands

RevenueBase identified 227 nonprofit consulting providers headquartered in the Netherlands as of September 2026 and tracks 1,039 professional contacts across them, including 287 with verified work emails. Amsterdam is the largest hub.

This list covers nonprofit consulting providers 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 14, 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 14, 2026 86% judged on-target in blind review
227Companies
1,039Contacts tracked
287Verified emails
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The 25 largest nonprofit consulting providers based in the Netherlands

Ranked by team size
Top 25 of 227 nonprofit consulting providers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit consulting providers: 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
1Indirect evidenceLeiden, NetherlandsHQ checked Sep 14, 202651-200195 contacts →

Indirect evidence

“De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceDelft, NetherlandsHQ checked Sep 14, 202651-20066 contacts →

Partial evidence

“We are the first branch in the Netherlands of the world's largest university based consultancy, and the world's leading provider of consulting services for non-profits, social…”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceHattem, NetherlandsHQ checked Sep 14, 202611-5044 contacts →

Indirect evidence

“E&M Consultants is opgericht door Frank Engberts en Gert Meuleman.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceSliedrecht, NetherlandsHQ checked Sep 14, 202611-5029 contacts →

Indirect evidence

“WITh is een uniek accountantskantoor dat zich uitsluitend richt op de non-profitsector.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceWageningen, NetherlandsHQ checked Sep 14, 202611-5028 contacts →

Indirect evidence

“S+DL helpt ondernemers en non-profits vooruit.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidence1087 Hw Amsterdam, NetherlandsHQ checked Sep 14, 202611-5023 contacts →

Indirect evidence

“Vannimwegen versterkt organisaties met advies, interim en opleiding.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceBunnik, NetherlandsHQ checked Sep 14, 202651-20023 contacts →

Indirect evidence

“The Nedworc Foundation (NWF) is an organisation for independent consultants working in international development cooperation.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceHaastrecht, NetherlandsHQ checked Sep 14, 202611-5017 contacts →

Indirect evidence

“We zijn een bijzonder adviesbureau en dat merk je.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceUtrecht, NetherlandsHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

“Goed geschud is een organisatieadviesbureau, gespecialiseerd in taaie en strategische vraagstukken in het maatschappelijk domein.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 20261-1014 contacts →

Indirect evidence

“AMS Consultancy exists to help purpose driven people do more.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceZwolle, NetherlandsHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“Data Inside is ontstaan uit de behoefte om alle kennis die we vanuit onze afzonderlijke bedrijven Mailtraffic, Christal (Donateursbehouden) opdeden, samen te brengen.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceThe Netherlands / United States Of America / Globally, NetherlandsHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

“HVFC is a consultancy that works with impact driven organisations to help them diversify funding, increase impact, and build capacity.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceEmmen, NetherlandsHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

“Orgon consults all kind of profit and non-profit companies in accounting, taxes, control, management structuring, internal and external auditting, human resource management…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceZaandijk, NetherlandsHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

“Wij zijn CISIS; marktleider in de Goede Doelen sector.”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceZeist, NetherlandsHQ checked Sep 14, 202611-509 contacts →

Partial evidence

“Magnitude Consulting is een hoogwaardig adviesbureau dat zijn cliënten helpt bij voor hen belangrijke vraagstukken.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceLochem, NetherlandsHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

“Ondernemen met Praud.”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceGorinchem, NetherlandsHQ checked Sep 14, 20261-107 contacts →

Indirect evidence

“Confidi staat voor tevredenheid en vertrouwen Een team van goed opgeleide professionals en twintig jaar lang ervaring in het succesvol begeleiden van organisaties in de regio…”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 20261-106 contacts →

Indirect evidence

“Laat onze ervaring voor jou werken Of je voor een grote non-profit werkt of een kleine, of je ervaren bent of niet: wij helpen je om donateurgerichte fondsenwerving écht te laten…”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 202611-505 contacts →

Indirect evidence

“We believe in tailor made solutions and approaches.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceHaarlem, NetherlandsHQ checked Sep 14, 202611-505 contacts →

Indirect evidence

“2MakeItHappen gelooft dat een goed doel, hoe klein ook, een merk moet zijn waar je bij wilt horen.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceEindhoven, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“The world is changing fast.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceGoirle, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“Wat zit er in het DNA van Mijn Zonneveld?”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceNijkerk, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“Welkom bij Cn5lt.”

Source: RevenueBase Database · checked Sep 14, 2026
24Partial evidenceGemert, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“W&B Consultants is een subsidie- en projectadviesbureau dat zowel voor de profit- als nonprofitsector werkt.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceEsbeek, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“Groeien gaat niet vanzelf.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 227 nonprofit consulting providers based in the Netherlands

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Nonprofit consulting providers based in the Netherlands at a glance

As of Sep 14, 2026
27.6%Verified-email coverage
4.6Average contacts per company
1-10Median size (employees)
10.6%Largest-city concentration · Amsterdam
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
196
11-50
23
51-200
6
1,001-5,000
1

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 227 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 nonprofit consulting providers, 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 “nonprofit consulting providers”. 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 nonprofit consulting providers), 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 nonprofit consulting providers, 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, 287 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 14, 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 nonprofit consulting providers, 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 nonprofit consulting providers are there based in the Netherlands?

RevenueBase identified 227 nonprofit consulting providers 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?

DE Kleine Consultant, headquartered in Leiden, tops this list with the largest team on record.

Which city has the most nonprofit consulting providers?

Amsterdam leads with 24 headquartered companies, followed by Rotterdam (9) and The Hague (5).

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 287 verified decision-maker contacts tracked across these 227 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 14, 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.