Company lists · Data refreshed September 2026

Top 25 Sales development consultancies based in the Netherlands

RevenueBase identified 663 sales development consultancies headquartered in the Netherlands as of September 2026 and tracks 2,831 professional contacts across them, including 715 with verified work emails. Amsterdam is the largest hub.

This list covers sales development consultancies 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 29, 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 29, 2026 86% judged on-target in blind review
663Companies
2,831Contacts tracked
715Verified emails
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The 25 largest sales development consultancies based in the Netherlands

Ranked by team size
Top 25 of 663 sales development consultancies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sales development consultancies: 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 29, 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 29, 2026
2Partial evidenceZoetermeer, NetherlandsHQ checked Sep 29, 202651-200136 contacts →

Partial evidence

“GMSF is gespecialiseerd in hoogwaardige sales outsourcing.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 202651-200108 contacts →

Indirect evidence

“Aexus makes technology and software companies successful.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceOosterbeek, NetherlandsHQ checked Sep 29, 2026n/a54 contacts →

Partial evidence

“Progresso: van Strategie via Sales naar Succes.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceGroningen, NetherlandsHQ checked Sep 29, 202651-20052 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceZaandam, NetherlandsHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceVeenendaal, NetherlandsHQ checked Sep 29, 202611-5046 contacts →

Partial evidence

“Sales Improvement Group; dé specialist in verkoopresultaat Wilt u met uw bedrijf groeien, uw marges vergroten en/of uw verkooporganisatie professionaliseren?”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceVogelenzang, NetherlandsHQ checked Sep 29, 202611-5042 contacts →

Partial evidence

“RedFoxBlue is een toonaangevende en internationaal opererende dienstverlener op het gebied van sales professionalisering.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceThe Hague, NetherlandsHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceBunschoten - Spakenburg, NetherlandsHQ checked Sep 29, 202651-20041 contacts →

Indirect evidence

“Accelarating Growth.”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceAmsterdam, NetherlandsHQ checked Sep 29, 2026n/a32 contacts →

Strong evidence

“SDR Leaders of EMEA is the premier community for sales development professionals across Europe, the Middle East, and Africa.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceRijswijk, NetherlandsHQ checked Sep 29, 202651-20030 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceZeist, NetherlandsHQ checked Sep 29, 202611-5028 contacts →

Partial evidence

“Larive International is an expert in strategic business development in emerging markets.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202651-20025 contacts →

Indirect evidence

“Most marketing agencies stop at the booked meeting.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-5024 contacts →

Indirect evidence

“Groei realiseer je niet met losse campagnes of korte-termijnacties.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceHelmond, NetherlandsHQ checked Sep 29, 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 29, 2026
17Indirect evidenceLeusden, NetherlandsHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“In de dynamische wereld van vandaag is het voor salesorganisaties cruciaal om sterk, wendbaar en flexibel te zijn.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5019 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceRijswijk, NetherlandsHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“Doen waar je goed in bent.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidence's-gravenzande, NetherlandsHQ checked Sep 29, 202611-5017 contacts →

Partial evidence

“Skyhigh Sales is een zakelijke dienstverlener gespecialiseerd in acquisitie diensten.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 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 29, 2026
22Partial evidenceAlblasserdam, NetherlandsHQ checked Sep 29, 202611-5016 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidencePurmerend, NetherlandsHQ checked Sep 29, 202611-5015 contacts →

Partial evidence

“We are a rebel in the world of marketing and sales.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceGouda, NetherlandsHQ checked Sep 29, 20261-1015 contacts →

Indirect evidence

“Welkom bij Groei!”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceVoorschoten, NetherlandsHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“Lots Marketing (sinds 2012) bestaat uit ambitieuze, gezellige en hardwerkende young professionals.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 663 sales development consultancies based in the Netherlands

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Sales development consultancies based in the Netherlands at a glance

As of Sep 29, 2026
25.3%Verified-email coverage
4.3Average contacts per company
1-10Median size (employees)
11.2%Largest-city concentration · Amsterdam
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
546
11-50
101
51-200
13
201-500
2
501-1,000
1

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 663 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 sales development consultancies, 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 “sales development consultancies”. 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 sales development consultancies), 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 sales development consultancies, 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, 715 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 29, 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 sales development consultancies, 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 sales development consultancies are there based in the Netherlands?

RevenueBase identified 663 sales development consultancies 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 sales development consultancies?

Amsterdam leads with 74 headquartered companies, followed by Rotterdam (37) and Utrecht (20).

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 715 verified decision-maker contacts tracked across these 663 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 29, 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.