Company lists · Data refreshed September 2026

Top 25 Conversion optimized web designers based in the Netherlands

RevenueBase identified 225 conversion optimized web designers headquartered in the Netherlands as of September 2026 and tracks 951 professional contacts across them, including 391 with verified work emails. Amsterdam is the largest hub.

This list covers conversion optimized web designers 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
225Companies
951Contacts tracked
391Verified emails
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The 25 largest conversion optimized web designers based in the Netherlands

Ranked by team size
Top 25 of 225 conversion optimized web designers 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 optimized web designers: 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 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
2Indirect 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
3Indirect 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
4Indirect evidenceGroningen, NetherlandsHQ checked Sep 27, 202611-5036 contacts →

Indirect evidence

“By truly prioritizing your target audience and their needs, you unlock the potential for greater digital success.”

Source: RevenueBase Database · checked Sep 27, 2026
5Strong 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
6Indirect evidenceThe Hague, NetherlandsHQ checked Sep 27, 202611-5024 contacts →

Indirect evidence

“PANGAEA Digital Agency helpt u om succesvol te zijn op het Internet.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial 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
8Strong 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
9Indirect 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
10Partial 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
11Indirect evidenceUtrecht, NetherlandsHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“Yelflow is een marketingbureau met enkel ervaren consultants die sterk zijn in personalisatie, automation- en performance marketing voor e-commerce en travel.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceMierlo, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“In de afgelopen jaren hebben wij ons meermaals bewezen in de praktijk, dit heeft geresulteerd in een mooi trackrecord.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceTilburg, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“Caramelo is een gedreven, creatief en veelzijdig (full service) online marketing bureau die streeft naar een optimale samenwerking met haar klanten.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceLeiden, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“SAM Online Marketing en Webdesign zet u en uw business online op de kaart.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“Wij zijn een groeigericht & ROI-gedreven online marketing bureau.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“We help your DTC brand grow with a creative-first advertising strategy for new customers, increased sales, and explosive growth.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial 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
18Indirect 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
19Indirect evidenceMiddelburg, NetherlandsHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Wij zijn Ivy Digital Marketing: een nuchter online marketing bureau uit Zeeland.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceZwolle, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Partial 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
21Indirect evidenceSassenheim, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“foome staat voor:"focus on online marketing experience".”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceLeeuwarden, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Marketing by facts, that’s what Factrics stands for!”

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

Partial evidence

“OnlineLabs: Jouw partner in online groei Bij OnlineLabs combineren we meer dan 15 jaar ervaring in SEO, webdesign, advertenties en conversie-optimalisatie om bedrijven te helpen…”

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

Indirect evidence

“CutTheWeb is an online marketing company.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceHaarlem, NetherlandsHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Wij laten bedrijven groeien door middel van datagedreven online marketing Wij zijn Fresh-Dev Digital Agency: online marketing specialisten die ondernemers en bedrijven helpen te…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 225 conversion optimized web designers based in the Netherlands

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Conversion optimized web designers based in the Netherlands at a glance

As of Sep 27, 2026
41.1%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
9.8%Largest-city concentration · Amsterdam
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
195
11-50
23
51-200
6

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 225 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 optimized web designers, 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 optimized web designers”. 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 optimized web designers), 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 optimized web designers, 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, 391 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 optimized web designers, 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 optimized web designers are there based in the Netherlands?

RevenueBase identified 225 conversion optimized web designers 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 optimized web designers?

Amsterdam leads with 22 headquartered companies, followed by Utrecht (8) and Rotterdam (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 391 verified decision-maker contacts tracked across these 225 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.