Company lists · Data refreshed September 2026

Top 25 Inside sales companies based in the Netherlands

RevenueBase identified 276 inside sales companies headquartered in the Netherlands as of September 2026 and tracks 2,370 professional contacts across them, including 568 with verified work emails. Amsterdam is the largest hub.

This list covers inside sales 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 20, 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 20, 2026 86% judged on-target in blind review
276Companies
2,370Contacts tracked
568Verified emails
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The 25 largest inside sales companies based in the Netherlands

Ranked by team size
Top 25 of 276 inside sales companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to inside sales 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 evidenceRotterdam, NetherlandsHQ checked Sep 20, 2026201-500171 contacts →

Indirect evidence

“Bij JEX ontwikkelen we een salesplatform dat B2B-bedrijven helpt om structureel nieuwe klanten te realiseren.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceDeventer, NetherlandsHQ checked Sep 20, 20261,001-5,000150 contacts →

Indirect evidence

“Als full service contactcenter bieden we klantcontact via alle kanalen.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceZoetermeer, NetherlandsHQ checked Sep 20, 202651-200136 contacts →

Partial evidence

“GMSF is gespecialiseerd in hoogwaardige sales outsourcing.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceAndelst, NetherlandsHQ checked Sep 20, 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 20, 2026
5Partial evidenceGroningen, NetherlandsHQ checked Sep 20, 202651-20052 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceZaandam, NetherlandsHQ checked Sep 20, 202651-20048 contacts →

Indirect evidence

“Flyncke verkoopondersteuning en next level lead-generatie & herkenning.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceHilversum, NetherlandsHQ checked Sep 20, 202651-20045 contacts →

Indirect evidence

“Movements Marketing is de specialist in en.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAe, NetherlandsHQ checked Sep 20, 2026201-50045 contacts →

Indirect evidence

“Over Marketing Impuls.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceDen Haag, NetherlandsHQ checked Sep 20, 202611-5042 contacts →

Indirect evidence

“Provite helpt bedrijven de omzet te verhogen door het genereren van gekwalificeerde salesleads.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBunschoten - Spakenburg, NetherlandsHQ checked Sep 20, 202651-20041 contacts →

Indirect evidence

“Accelarating Growth.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceEindhoven, NetherlandsHQ checked Sep 20, 202611-5038 contacts →

Indirect evidence

“FindBusiness is a specialist in B2B lead generation.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceHeelsum, NetherlandsHQ checked Sep 20, 202611-5032 contacts →

Indirect evidence

“Tolzo is een frisse nieuwkomer in de markt van business support.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceRijswijk, NetherlandsHQ checked Sep 20, 202651-20030 contacts →

Partial evidence

“Flexxvoice is jouw partner op het gebied van sales.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202611-5024 contacts →

Partial evidence

“Your best sales reps spend up to 70% of their week not selling.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceRijswijk, NetherlandsHQ checked Sep 20, 202611-5024 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceDen Bosch, NetherlandsHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 20, 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 20, 2026
18Indirect evidenceHalfweg, NetherlandsHQ checked Sep 20, 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 20, 2026
19Indirect evidenceHelmond, NetherlandsHQ checked Sep 20, 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 20, 2026
20Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Calltraders offers high-end lead generation services for ambitious tech companies across the globe.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidence’s-hertogenbosch, NetherlandsHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Better leads | More customers | Increased conversion rates | Higher revenue | Measurable more success!' & .”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceDordrecht, NetherlandsHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceEindhoven, NetherlandsHQ checked Sep 20, 202651-20017 contacts →

Partial evidence

“How do you get the most out of your marketing and sales resources?”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceRijswijk, NetherlandsHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“Doen waar je goed in bent.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“Lead Factory is dé partner als het gaat om het vinden van hoogwaardige prospects en het genereren van waardevolle leads.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 276 inside sales companies based in the Netherlands

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Inside sales companies based in the Netherlands at a glance

As of Sep 20, 2026
24.0%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
10.5%Largest-city concentration · Amsterdam
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
146
11-50
91
51-200
30
201-500
7
1,001-5,000
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 276 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 inside sales 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 “inside sales 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 inside sales 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 inside sales 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, 568 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 20, 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.

Inside sales companies by metro

  • Inside sales companies in Amsterdam29

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 inside sales 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 inside sales companies are there based in the Netherlands?

RevenueBase identified 276 inside sales 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?

JEX, headquartered in Jl, tops this list with the largest team on record.

Which city has the most inside sales companies?

Amsterdam leads with 29 headquartered companies, followed by Rotterdam (18) and Den Haag (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 568 verified decision-maker contacts tracked across these 276 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 20, 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.