Company lists · Data refreshed September 2026

Top 25 Conversion rate optimization software companies based in the Netherlands

RevenueBase identified 105 conversion rate optimization software companies headquartered in the Netherlands as of September 2026 and tracks 553 professional contacts across them, including 230 with verified work emails and 55 with mobile numbers. Amsterdam is the largest hub.

This list covers conversion rate 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
105Companies
553Contacts tracked
230Verified emails
55Mobile numbers
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The 25 largest conversion rate optimization software companies based in the Netherlands

Ranked by team size
Top 25 of 105 conversion rate optimization software companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to conversion rate 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 evidenceNg, Netherlands51-200111 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 1, 2026
2Indirect evidenceHaarlem, Netherlands51-20045 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceBh, Netherlands51-20035 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 1, 2026
4Strong evidenceZwolle, Netherlands11-5034 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 1, 2026
5Partial evidenceAmsterdam, Netherlands11-5033 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
6Partial evidenceUtrecht, Netherlands11-5020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
7Strong evidenceAmsterdam, Netherlands51-20017 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
8Indirect evidenceEk, Netherlands11-5016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceTd, Netherlands1-1012 contacts →

Partial evidence

“Website and marketing optimization.”

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceS-Hertogenbosch, Netherlands1-1010 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 1, 2026
11Partial evidenceAmsterdam, Netherlands11-509 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
12Indirect evidenceDen Haag, Netherlands1-108 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 1, 2026
13Partial evidencePc, Netherlands1-107 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceSas Van Gent, Netherlands1-105 contacts →

Indirect evidence

“Jouw website wordt een goudmijn!”

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceAmsterdam, Netherlands1-105 contacts →

Indirect evidence

“GOnnected - http://bit.ly/GOnnected Mission: We help businesses make better use of data and achieve their revenue goals while maximizing ROI.”

Source: RevenueBase Database · checked Sep 1, 2026
16Partial evidenceNx, Netherlands1-104 contacts →

Partial evidence

“Octanist transforms your leads into measurable value and optimizes your ads and campaigns with easy-to-use offline conversion tracking.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceGroningen, Netherlands1-104 contacts →

Indirect evidence

“Onze bewezen methode, helpt jou online groeien.”

Source: RevenueBase Database · checked Sep 1, 2026
18Indirect evidenceAmsterdam, Netherlands51-2004 contacts →

Indirect evidence

“Over the last decade, we have achieved great success in implementing user acquisition campaigns across more than 30 markets.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceEindhoven, Netherlands1-103 contacts →

Indirect evidence

“We zijn een open boek, verkopen geen sprookjes.”

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidenceEnschede, Netherlands1-103 contacts →

Indirect evidence

“10+ years of battle-tested expertise with 4 CRO Award nominations (2 wins).”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceGroningen, Netherlands1-103 contacts →

Partial evidence

“Groei met Data is een conversie ratio optimalisatie bureau in Groningen.”

Source: RevenueBase Database · checked Sep 1, 2026
22Indirect evidenceRoermond, Netherlands11-503 contacts →

Indirect evidence

“mProvement is een kennis provider en full service organisatie op het gebied van Webanalytics gespecialiseerd in Google Analytics en Webtrends, Zoekmachine marketing, Zoekmachine…”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidencePd, Netherlands1-102 contacts →

Partial evidence

Conversie Marketeers is een full-service online marketingbureau gevestigd in Deventer met een sterke focus op conversie optimalisatie, online adverteren, zoekmachine optimalisatie…”

Source: RevenueBase Database · checked Sep 1, 2026
24Indirect evidenceNetherlands1-102 contacts →

Indirect evidence

“Ervaren, slimme online marketeers die ontdekten dat veel opdrachtgevers niet echt happy zijn met de resultaten van hun online marketing.”

Source: RevenueBase Database · checked Sep 1, 2026
25Indirect evidenceNetherlands1-102 contacts →

Indirect evidence

“Fresh Advertising is een resultaat gerichte business.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 105 conversion rate optimization software companies based in the Netherlands

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Conversion rate optimization software companies based in the Netherlands at a glance

As of Sep 1, 2026
41.6%Verified-email coverage
9.9%Mobile-number coverage
5.3Average contacts per company
1-10Median size (employees)
13.3%Largest-city concentration · Amsterdam
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
91
11-50
8
51-200
5

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 rate 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 rate 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 rate 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 rate 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, 230 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 1, 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 rate 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 rate optimization software companies are there based in the Netherlands?

RevenueBase identified 105 conversion rate 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?

Grizzly NEW Marketing, headquartered in Ng, tops this list with the largest team on record.

Which city has the most conversion rate optimization software companies?

Amsterdam leads with 14 headquartered companies, followed by Rotterdam (6) and Eindhoven (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 230 verified decision-maker contacts tracked across these 105 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 1, 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.