Company lists · Data refreshed November 2026

Top 15 Assertiveness training services based in the Netherlands

RevenueBase identified 77 company matches for assertiveness training services associated with the Netherlands as of November 2026 and tracks 180 professional contacts across them, including 31 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for assertiveness training services associated with the Netherlands, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
77Companies
180Contacts tracked
31Verified emails
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The 15 largest assertiveness training services based in the Netherlands

Ranked by team size
Top 15 of 77 company matches for assertiveness training services based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAh, NetherlandsHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Mansal werkt voor iedereen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeiden, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Hoi!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNeede, NetherlandsHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Krachtig vanuit balans!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchZwijndrecht, NetherlandsHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Roll opleidingen biedt meerjarige opleidingstrajecten met daarin verschillende trainingen gericht op communicatie- en agressiemanagement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Communicatiehelden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchVeenendaal, NetherlandsHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Asserti Traint & Coacht is de partij voor het geven van trainingen weerbaarheid, Team coaching en (ambulante) begeleiding bieden binnen de WMO en aan (zorg) instellingen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20261-104 contacts →

Exact match

“BEN THOMAS = VOL OVERTUIGING Of je nu gaat speechen op een podium, aan de onderhandelingstafel zit, een campagne lanceert of een start-up ontwikkelt: overtuiging vormt de basis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHoorn, NetherlandsHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Wij zijn er voor professionals in onderwijs, jeugdzorg en overheid die samen willen werken aan effectieve communicatie, omgaan met lastig gedrag en als team het maximale uit de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAxel, NetherlandsHQ recorded Nov 6, 20261-103 contacts →

Exact match

“FPR Training brengt uw medewerkers met energieke trainingen, coaching en workshops blijvende management- en communicatievaardigheden bij.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDe Meern, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Vitality2improve verzorgt op-maat en persoonsgerichte programma’s, workshops en individuele trajecten om de assertiviteit – en daarmee de algehele mentale fitheid - te verhogen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAlphen Aan Den Rijn, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Tijdens een Remarcable training word je geïnspireerd om kleine stapjes buiten je comfortzone te zetten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchTilburg, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Goede communicatie gemakkelijker maken!**Iedereen kan praten** ‘We besteden veel te veel tijd aan bar slechte communicatie!’ Uit die veelgehoorde frustratie werd Rotys geboren…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchVeldhoven, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Instituut Wijs- Sprekend jezelf zijn, is de plek om je persoonlijke communicatie en presentatie te versterken.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGaanderen, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Bij BSmart Communication zijn we gepassioneerd over het helpen van bedrijven, teams en individuen om hun communicatievaardigheden te verbeteren en te ondersteunen bij hun…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“We coach teams and individuals to reach their communication potential.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 77 assertiveness training services based in the Netherlands

See the full list, filter by size, metro and specialty, and access 31 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Assertiveness training services based in the Netherlands at a glance

As of Nov 6, 2026
17.2%Verified-email coverage
2.3Average contacts per company
1-10Median size (employees)
11.7%Largest-city concentration · Amsterdam
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
7

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 77 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the Netherlands whose business descriptions match “assertiveness training services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 31 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “assertiveness training services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many assertiveness training services are there based in the Netherlands?

RevenueBase identified 77 company matches for assertiveness training services associated with the Netherlands as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Mansal B.V tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most assertiveness training services?

Amsterdam leads with 9 company records, followed by Breda (4) and Almere (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31 professional contacts with verified work emails tracked across these 77 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.