Company lists · Data refreshed September 2026

Top 25 Cold calling firms based in the Netherlands

RevenueBase identified 128 cold calling firms headquartered in the Netherlands as of September 2026 and tracks 788 professional contacts across them, including 216 with verified work emails. Rotterdam is the largest hub.

This list covers cold calling firms 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 21, 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 21, 2026 86% judged on-target in blind review
128Companies
788Contacts tracked
216Verified emails
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The 25 largest cold calling firms based in the Netherlands

Ranked by team size
Top 25 of 128 cold calling firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cold calling firms: 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 evidenceAndelst, NetherlandsHQ checked Sep 21, 202651-20060 contacts →

Indirect evidence

“Established in 2002, Vendere (Latin for ‘to sell’) is a marketing-orientated expert specialising in telephone communications – qualitative telemarketing, telesales and lead…”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceGroningen, NetherlandsHQ checked Sep 21, 202651-20052 contacts →

Indirect evidence

“Hello Company is een B2B bedrijf gespecialiseerd in sales- en marketing support.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceHilversum, NetherlandsHQ checked Sep 21, 202651-20045 contacts →

Indirect evidence

“Movements Marketing is de specialist in en.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceEindhoven, NetherlandsHQ checked Sep 21, 202611-5038 contacts →

Indirect evidence

“FindBusiness is a specialist in B2B lead generation.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceRijswijk, NetherlandsHQ checked Sep 21, 202611-5024 contacts →

Indirect evidence

“In4Leads is een direct sales bureau, gespecialiseerd in spotten van B2B leads in IT- en aanverwante markten.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceDen Bosch, NetherlandsHQ checked Sep 21, 202611-5023 contacts →

Indirect evidence

“TSD has 30 years experience in full-service outbound B2B telemarketing.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 21, 202611-5022 contacts →

Indirect evidence

“MarketCall is HET B2B callcenter gespecialiseerd in het leggen van effectieve leads-gerichte contacten in de zakelijke markt.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceHalfweg, NetherlandsHQ checked Sep 21, 202651-20022 contacts →

Indirect evidence

“Skondras Nederland levert leadgeneratie en klantcontact voor B2B-bedrijven die concrete resultaten willen, zonder ruis.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceHelmond, NetherlandsHQ checked Sep 21, 202611-5020 contacts →

Indirect evidence

“Optimaal Leadgeneratie brengt jou aan tafel met beslissers van organisaties waarvoor jij graag wilt werken.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceDordrecht, NetherlandsHQ checked Sep 21, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceAlblasserdam, NetherlandsHQ checked Sep 21, 202611-5016 contacts →

Indirect evidence

“Sales zit in ons DNA Meer leads, meer omzet en meer rendement genereren.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHoofddorp, NetherlandsHQ checked Sep 21, 202651-20015 contacts →

Indirect evidence

“Data-driven direct marketing voor dienstverleners met ambitieuze groeidoelstellingen.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceWaddinxveen, NetherlandsHQ checked Sep 21, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“Direct Minds is an Outbound and Inbound Contact Center for the business to business market.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceEnschede, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Als je leads niet goed opvolgt, loop je omzet mis.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceDen Haag, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Established in and based in The Hague, Leadworks is an outbound B2B telemarketing agency, specialised in lead generation.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceGemeente Eindhoven, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“B2bpro is de specialist op het gebied van outbound zakelijke telefonische acquisitie.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceRotterdam, NetherlandsHQ checked Sep 21, 2026201-50010 contacts →

Indirect evidence

“Flair & Quality is een organisatie die door jarenlange ervaring hoogwaardig maatwerk bied op het gebied van leadgeneratie en telefonische acquisitie.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceScharnegoutum, NetherlandsHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

“Breuker TeleMarketing & Meer is in 1986 gestart als outbound telemarketingbureau vanuit de visie een optimale bijdrage te leveren aan het resultaat van onze opdrachtgevers.”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceLeusden, NetherlandsHQ checked Sep 21, 202611-509 contacts →

Strong evidence

Cold Calling is 1 van de meest doeltreffende marketinginstrumenten.”

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

Indirect evidence

“New Business en Leads genereren in B2B omgevingen, goede service en een persoonlijk contact met de opdrachtgever.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidencePurmerend, NetherlandsHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Adequaat is een gespecialiseerd callcenter en een kei in telefonisch werving, winback, upgrade.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceLeusden, NetherlandsHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“Consellium: Onderdeel van UBO Agency.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceCulemborg, NetherlandsHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“Als bedrijf ben je op zoek naar een partij die voor jou kwalitatief goede afspraken maakt bij potentiële klanten.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceHoofddorp, NetherlandsHQ checked Sep 21, 20261-106 contacts →

Indirect evidence

“Er zijn twee wegen in de sales.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 128 cold calling firms based in the Netherlands

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Cold calling firms based in the Netherlands at a glance

As of Sep 21, 2026
27.4%Verified-email coverage
6.2Average contacts per company
11-50Median size (employees)
7.8%Largest-city concentration · Rotterdam
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
54
51-200
12
201-500
5

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 128 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 cold calling firms, 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 “cold calling firms”. 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 cold calling firms), 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 cold calling firms, 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, 216 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 21, 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 cold calling firms, 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 cold calling firms are there based in the Netherlands?

RevenueBase identified 128 cold calling firms 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?

Vendere, headquartered in Andelst, tops this list with the largest team on record.

Which city has the most cold calling firms?

Rotterdam leads with 10 headquartered companies, followed by Amsterdam (8) 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 216 verified decision-maker contacts tracked across these 128 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 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 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.