Company lists · Data refreshed September 2026

Top 25 Impact measurement consultants based in the Netherlands

Name: Impact measurement consultants based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 72 companies tracked

RevenueBase identified 72 impact measurement consultants headquartered in the Netherlands as of September 2026 and tracks 601 professional contacts across them, including 200 with verified work emails. Amsterdam is the largest hub.

This list covers impact measurement 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 20, 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 20, 2026 86% judged on-target in blind review

72Companies

601Contacts tracked

200Verified emails

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The 25 largest impact measurement consultants based in the Netherlands

Ranked by team size

Top 25 of 72 impact measurement consultants based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to impact measurement 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DE Kleine Consultant	Partial evidence	Leiden, NetherlandsHQ checked Sep 20, 2026	51-200	195 contacts →
	Partial 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 20, 2026
2	180 Degrees Consulting Delft-Rotterdam	Partial evidence	Delft, NetherlandsHQ checked Sep 20, 2026	51-200	66 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 20, 2026
3	NEW Silk Roads	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	n/a	47 contacts →
	Partial evidence “New Silk Roads is a boutique consultancy agency operating from Cairo, Tunis, and Amsterdam.” Source: RevenueBase Database · checked Sep 20, 2026
4	Steward Redqueen	Strong evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	35 contacts →
	Strong evidence “The consultancy firm that wants to make business work for society We believe that great companies know that their success in the market depends on the positive impact they have on…” Source: RevenueBase Database · checked Sep 20, 2026
5	Better Future	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Have you signed up for a better future?” Source: RevenueBase Database · checked Sep 20, 2026
6	Social Finance NL	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	19 contacts →
	Partial evidence “Social Finance NL helpt organisaties bij het meten, financieren en vergroten van maatschappelijke impact.” Source: RevenueBase Database · checked Sep 20, 2026
7	Jac's DEN Boer & Vink	Indirect evidence	Haastrecht, NetherlandsHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “We zijn een bijzonder adviesbureau en dat merk je.” Source: RevenueBase Database · checked Sep 20, 2026
8	Firma Twist B Corp	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Bij Firma Twist, hét bureau voor maatschappelijke verandering, weten we hoe verandering werkt.” Source: RevenueBase Database · checked Sep 20, 2026
9	AMS	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	14 contacts →
	Partial evidence “AMS Consultancy exists to help purpose driven people do more.” Source: RevenueBase Database · checked Sep 20, 2026
10	HVFC	Strong evidence	The Netherlands / United States Of America / Globally, NetherlandsHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong 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 20, 2026
11	Impct Agency	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Bij IMPCT geloven we dat maatschappelijke impact en zakelijk succes elkaar versterken.” Source: RevenueBase Database · checked Sep 20, 2026
12	Impact Centre Erasmus	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Het Impact Centre Erasmus koppelt wetenschap actief aan de praktijk om organisaties te helpen bij de realisatie van haar maatschappelijke ambities en het vergroten van de…” Source: RevenueBase Database · checked Sep 20, 2026
13	Alexander Impact	Partial evidence	Groningen, NetherlandsHQ checked Sep 20, 2026	1-10	10 contacts →
	Partial evidence “Alexander Impact maakt de social impact van jouw organisatie, fonds of project inzichtelijk en zichtbaar.” Source: RevenueBase Database · checked Sep 20, 2026
14	H3 Group	Indirect evidence	Tegelen, NetherlandsHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “H3 Group is de sparringpartner en betrokken uitvoerende adviseur voor MKB-organisaties, als het gaat om groeiend en zinvol ondernemen met mensen.” Source: RevenueBase Database · checked Sep 20, 2026
15	Joint Impact Model Foundation	Partial evidence	Schiphol, NetherlandsHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “The Joint Impact Model Foundation was established in 2022 to create credible oversight of the Joint Impact Model (JIM) and its development.” Source: RevenueBase Database · checked Sep 20, 2026
16	Behold International	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “We believe in tailor made solutions and approaches.” Source: RevenueBase Database · checked Sep 20, 2026
17	Fiind Impact	Strong evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	4 contacts →
	Strong evidence “FIIND Impact is an independent investment consultant and advisor focusing on combining impact and financial expertise.” Source: RevenueBase Database · checked Sep 20, 2026
18	Sinzer	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	4 contacts →
	Partial evidence “Everything we do impacts people and planet.” Source: RevenueBase Database · checked Sep 20, 2026
19	dodiversity.com	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Wat we doen: DoDiversity helpt organisaties, vooral binnen de culturele en maatschappelijke sector, bij thema’s als inclusie, impact en organisatiecultuur.” Source: RevenueBase Database · checked Sep 20, 2026
20	Impact Orange Partners	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Impact Orange Partners bewerkstelligt positieve impact en waarde creatie bij haar klanten door impact advies, impact monitoring en impact beheer.” Source: RevenueBase Database · checked Sep 20, 2026
21	High Noon Growth Strategy	Strong evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	1-10	2 contacts →
	Strong evidence “International Impact Innovation Consultancy, supporting brands big and small, impact-led and impact-ready, to deliver on their ambitions.” Source: RevenueBase Database · checked Sep 20, 2026
22	Servates BV	Partial evidence	Emmen, NetherlandsHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Servates wil organisaties helpen bij het systematisch meten, optimaliseren en verantwoorden van hun social impact, zodat zij continu kunnen werken aan het verbeteren van hun…” Source: RevenueBase Database · checked Sep 20, 2026
23	Roel Kiers	Indirect evidence	Zwolle, NetherlandsHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Begeleid bedrijven succesvol bij de werving en selectie van getalenteerde medewerkers die in hun kracht staan.” Source: RevenueBase Database · checked Sep 20, 2026
24	Deccos	Partial evidence	Westervoort, NetherlandsHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “Sociale impact meten duur en moeilijk?” Source: RevenueBase Database · checked Sep 20, 2026
25	Effectenmonitor	Indirect evidence	Enschede, NetherlandsHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “De Effectenmonitor is een maatschappelijke onderneming met een sociale missie.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: impact measurement consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names impact measurement consultants.
Partial evidence: Its own public description names part of impact measurement consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name impact measurement consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 72 impact measurement consultants based in the Netherlands

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Impact measurement consultants based in the Netherlands at a glance

As of Sep 20, 2026

33.3%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

34.7%Largest-city concentration · Amsterdam

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 72 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 impact measurement 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 “impact measurement 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 impact measurement 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 impact measurement 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, 200 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 20, 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.

Impact measurement consultants by metro

Impact measurement consultants in Amsterdam25

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 impact measurement 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 impact measurement consultants are there based in the Netherlands?

RevenueBase identified 72 impact measurement 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?

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

Which city has the most impact measurement consultants?

Amsterdam leads with 25 headquartered companies, followed by Utrecht (5) and Rotterdam (4).

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 200 verified decision-maker contacts tracked across these 72 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 20, 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.