Company lists · Data refreshed September 2026

Top 25 Conversion optimization firms based in the Netherlands

Name: Conversion optimization firms based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 292 companies tracked

RevenueBase identified 292 company matches for conversion optimization firms associated with the Netherlands as of September 2026 and tracks 1,323 professional contacts across them, including 540 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for conversion optimization firms associated with the Netherlands, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

292Companies

1,323Contacts tracked

540Verified emails

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The 25 largest conversion optimization firms based in the Netherlands

Ranked by team size

Top 25 of 292 company matches for conversion optimization firms based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Grizzly NEW Marketing	Exact match	Breda, NetherlandsHQ recorded Sep 21, 2026	51-200	109 contacts →
	Exact match “Grizzly New Marketing is een gespecialiseerd SEO marketingbureau in Nederland (Breda en Rotterdam), België (Antwerpen-Berchem) en de Verenigde Staten (New York).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Blauwe Monsters Part Of Conclusion	Exact match	Haarlem, NetherlandsHQ recorded Sep 21, 2026	51-200	45 contacts →
	Exact match “Blauwe Monsters is an ambitious and innovative online marketing agency.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Triplepro Online Marketing BV	Exact match	Groningen, NetherlandsHQ recorded Sep 21, 2026	51-200	42 contacts →
	Exact match “TriplePro Online Marketing bv is een groep mensen die bedrijven helpt met een betere internetstrategie.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Netprofiler	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	51-200	36 contacts →
	Exact match “Netprofiler is een snelgroeiend bedrijf in de online marketing en heeft momenteel 60 specialisten in dienst die werken vanuit het kantoor in Amsterdam.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Concept7	Exact match	Groningen, NetherlandsHQ recorded Sep 21, 2026	11-50	36 contacts →
	Exact match “By truly prioritizing your target audience and their needs, you unlock the potential for greater digital success.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Tweakwise	Exact match	Zwolle, NetherlandsHQ recorded Sep 21, 2026	11-50	34 contacts →
	Exact match “Tweakwise is the specialist and market leader in the Benelux in the field of conversion optimization in e-commerce.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	The Fellas ADS	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	1-10	26 contacts →
	Exact match “We’re The Fellas Ads – a performance marketing agency based in the center of Amsterdam.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Paperdigits	Exact match	Alkmaar, NetherlandsHQ recorded Sep 21, 2026	11-50	24 contacts →
	Exact match “Wij zijn PaperDigits.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Online Dialogue	Exact match	Utrecht, NetherlandsHQ recorded Sep 21, 2026	11-50	19 contacts →
	Exact match “Online Dialogue is known as a frontrunner in the field of optimization and experimentation since 2009.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Clickvalue	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	51-200	18 contacts →
	Exact match “ClickValue is an Amsterdam based Conversion Optimization Agency fully focused on sustainable online growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Marketingconcurrent	Exact match	Veenendaal, NetherlandsHQ recorded Sep 21, 2026	11-50	18 contacts →
	Exact match “Bij MarketingConcurrent helpen wij bedrijven meer rendement uit hun marketing te halen, met volledige ontzorging van A tot Z.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Onyourline	Exact match	Nijmegen, NetherlandsHQ recorded Sep 21, 2026	11-50	17 contacts →
	Exact match “Onyourline is een organisatie met ruime ervaring op het gebied van online strategie, online marketing en zoekmachine optimalisatie.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Chase Marketing	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	11-50	17 contacts →
	Exact match “Bij Chase Marketing zijn we experts in performance marketing en werken we met unieke, bewezen methoden.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Leadscope	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	51-200	17 contacts →
	Exact match “Je groei kwam jaren uit je netwerk, via sales en de juiste gesprekken op het juiste moment.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Happy Idiots Part Of Happy Horizon	Exact match	Eindhoven, NetherlandsHQ recorded Sep 21, 2026	51-200	17 contacts →
	Exact match “Happy Idiots: ‘Gek van online effect!’ Fris en gedreven.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Allfree B.V	Exact match	Groningen, NetherlandsHQ recorded Sep 21, 2026	11-50	14 contacts →
	Exact match “Allfree B.V- - is dé leadgenerator van Nederland voor het MKB.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	The Ecom Agency B.V	Exact match	Zwaag, NetherlandsHQ recorded Sep 21, 2026	11-50	14 contacts →
	Exact match “We geloven dat succesvolle performance marketing meer is dan alleen betaald adverteren en e-mailen.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Ecomtraffic Agency B.V	Exact match	Uden, NetherlandsHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “EcomTraffic helpt E-Commerce merken slagen & opschalen op het gebied van conversie & UX ontwerp.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Frst Media	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	51-200	12 contacts →
	Exact match “We are FRST Media, a global leader in Performance Marketing and Lead Generation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	The Distrikt We're Hiring	Exact match	Eindhoven, NetherlandsHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “The Distrikt, Your World Online staat bekend als firma waar bedrijven zich kunnen laten ontzorgen op het gebied van online marketing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Yelflow Personalisatie & Automation Agency	Exact match	Utrecht, NetherlandsHQ recorded Sep 21, 2026	11-50	11 contacts →
	Exact match “Yelflow is een marketingbureau met enkel ervaren consultants die sterk zijn in personalisatie, automation- en performance marketing voor e-commerce en travel.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	VOS Marketing	Exact match	Rotterdam, NetherlandsHQ recorded Sep 21, 2026	11-50	11 contacts →
	Exact match “Performance based marketing voor e-commerce bedrijven.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Alona Marketing	Exact match	Eindhoven, NetherlandsHQ recorded Sep 21, 2026	11-50	11 contacts →
	Exact match “Grow your business with Smart Digital Marketing Campaigns.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Leadbot	Exact match	Amersfoort, NetherlandsHQ recorded Sep 21, 2026	1-10	11 contacts →
	Exact match “Did you know that 98% of visitors leave a website without taking action?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Montix Digital Consultancy	Exact match	Enschede, NetherlandsHQ recorded Sep 21, 2026	1-10	11 contacts →
	Exact match “Website and marketing optimization.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “conversion optimization firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 292 conversion optimization firms based in the Netherlands

See the full list, filter by size, metro and specialty, and access 540 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Conversion optimization firms based in the Netherlands at a glance

As of Sep 21, 2026

40.8%Verified-email coverage

4.5Average contacts per company

1-10Median size (employees)

15.4%Largest-city concentration · Amsterdam

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

238

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 292 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the Netherlands whose business descriptions match “conversion optimization firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 540 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “conversion optimization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many conversion optimization firms are there based in the Netherlands?

RevenueBase identified 292 company matches for conversion optimization firms associated with the Netherlands as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Grizzly NEW Marketing tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most conversion optimization firms?

Amsterdam leads with 45 company records, followed by Rotterdam (12) and Eindhoven (11).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 540 professional contacts with verified work emails tracked across these 292 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.