Company lists · Data refreshed September 2026

Top 25 Conversion optimization software companies based in the Netherlands

RevenueBase identified 166 conversion optimization software companies headquartered in the Netherlands as of September 2026 and tracks 1,159 professional contacts across them, including 381 with verified work emails. Amsterdam is the largest hub.

This list covers conversion optimization software companies 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 27, 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 27, 2026 86% judged on-target in blind review
166Companies
1,159Contacts tracked
381Verified emails
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The 25 largest conversion optimization software companies based in the Netherlands

Ranked by team size
Top 25 of 166 conversion optimization software companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to conversion optimization software companies: 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 evidenceAmsterdam, NetherlandsHQ checked Sep 27, 2026201-500242 contacts →

Indirect evidence

“ClickDealer, is a Global Performance Marketing Company, centered on developing solutions to fulfill marketing goals across the industry.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceBreda, NetherlandsHQ checked Sep 27, 202651-200109 contacts →

Indirect evidence

“Grizzly New Marketing is een gespecialiseerd SEO marketingbureau in Nederland (Breda en Rotterdam), België (Antwerpen-Berchem) en de Verenigde Staten (New York).”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceAlmere, NetherlandsHQ checked Sep 27, 2026201-500103 contacts →

Indirect evidence

“TradeTracker.com brings together the online community’s best and brightest: working together towards the common goal of enhancing their performance marketing.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceHaarlem, NetherlandsHQ checked Sep 27, 202651-20045 contacts →

Indirect evidence

“Blauwe Monsters is an ambitious and innovative online marketing agency.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202651-20036 contacts →

Indirect evidence

“Netprofiler is een snelgroeiend bedrijf in de online marketing en heeft momenteel 60 specialisten in dienst die werken vanuit het kantoor in Amsterdam.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceZwolle, NetherlandsHQ checked Sep 27, 202611-5034 contacts →

Strong evidence

“Tweakwise is the specialist and market leader in the Benelux in the field of conversion optimization in e-commerce.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202611-5032 contacts →

Partial evidence

“Userguest helps hotels grow direct bookings by connecting AI-driven acquisition with conversion optimisation.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceUtrecht, NetherlandsHQ checked Sep 27, 202611-5019 contacts →

Partial evidence

“Online Dialogue is known as a frontrunner in the field of optimization and experimentation since 2009.”

Source: RevenueBase Database · checked Sep 27, 2026
9Strong evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202651-20018 contacts →

Strong evidence

“ClickValue is an Amsterdam based Conversion Optimization Agency fully focused on sustainable online growth.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceVeenendaal, NetherlandsHQ checked Sep 27, 202611-5018 contacts →

Indirect evidence

“Bij MarketingConcurrent helpen wij bedrijven meer rendement uit hun marketing te halen, met volledige ontzorging van A tot Z.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“ABsmartly's experimentation platform makes sophisticated experimentation simple.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceUden, NetherlandsHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“EcomTraffic helpt E-Commerce merken slagen & opschalen op het gebied van conversie & UX ontwerp.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202651-20012 contacts →

Indirect evidence

“We are FRST Media, a global leader in Performance Marketing and Lead Generation.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceRotterdam, NetherlandsHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“Performance based marketing voor e-commerce bedrijven.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidence's-hertogenbosch, NetherlandsHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

“Up Analytics is a boutique digital agency specialised in supporting and challenging in-house marketing teams to become better at measuring and optimising digital marketing.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceHilversum, NetherlandsHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“Wil je kwalitatieve Sales Leads zonder dat je extra bezoekers naar je website brengt?”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

“Did you know that 98% of visitors leave a website without taking action?”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceEnschede, NetherlandsHQ checked Sep 27, 20261-1011 contacts →

Partial evidence

“Website and marketing optimization.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202611-509 contacts →

Partial evidence

“Conversion Company is an Amsterdam based Digital accelerator for leading companies.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceDeventer, NetherlandsHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Online groei start hier”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceVeenendaal, NetherlandsHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Als online marketingbureau begrijpen we dat het hebben van een mooie website niet voldoende is.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceUtrecht, NetherlandsHQ checked Sep 27, 20261-108 contacts →

Indirect evidence

“Futy is a technology company focusing on lead generation.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceZwolle, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Wij zijn Funnel Optimizers, online marketingbureau gespecialiseerd in performance marketing, website optimalisatie en audits & advies op basis van analyse.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceGouda, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Partial evidence

“Re:publish is een dynamisch en groeiend Conversie Marketing Netwerk.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceThe Hague, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Helping E-commerce brands maximize Lifetime Value & Profits with Klaviyo CRM, CRO & CVO Let's meet: https://calendly.com/polarisgrowth/kennismaking”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 166 conversion optimization software companies based in the Netherlands

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Conversion optimization software companies based in the Netherlands at a glance

As of Sep 27, 2026
32.9%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
13.3%Largest-city concentration · Amsterdam
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
134
11-50
23
51-200
6
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 166 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 conversion optimization software companies, 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 “conversion optimization software companies”. 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 conversion optimization software companies), 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 conversion optimization software companies, 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, 381 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 27, 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 conversion optimization software companies, 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 conversion optimization software companies are there based in the Netherlands?

RevenueBase identified 166 conversion optimization software companies 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?

Clickdealer, headquartered in Amsterdam, tops this list with the largest team on record.

Which city has the most conversion optimization software companies?

Amsterdam leads with 22 headquartered companies, followed by Eindhoven (8) and Groningen (7).

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 381 verified decision-maker contacts tracked across these 166 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 27, 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.