Company lists · Data refreshed September 2026

Top 25 Leadership assessment companies based in the Netherlands

RevenueBase identified 143 leadership assessment companies headquartered in the Netherlands as of September 2026 and tracks 770 professional contacts across them, including 188 with verified work emails. Amsterdam is the largest hub.

This list covers leadership assessment 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
143Companies
770Contacts tracked
188Verified emails
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The 25 largest leadership assessment companies based in the Netherlands

Ranked by team size
Top 25 of 143 leadership assessment 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 leadership assessment 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
1Partial evidenceAalsmeer, NetherlandsHQ checked Sep 20, 2026n/a124 contacts →

Partial evidence

“Leiderschap, mens & communicatie Fulfil your true potential in leadership.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202651-20045 contacts →

Indirect evidence

“Glasford International is a global (retained) executive search firm with offices throughout EMEA, AMERICAS, APAC.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceVught, NetherlandsHQ checked Sep 20, 202611-5040 contacts →

Indirect evidence

“Kenhardt versterkt mensen, teams en organisaties, met inzicht dat leidt tot meetbaar resultaat.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceVught, NetherlandsHQ checked Sep 20, 202611-5039 contacts →

Indirect evidence

“Talenten kennen.”

Source: RevenueBase Database · checked Sep 20, 2026
5Strong evidence's Hertogenbosch, NetherlandsHQ checked Sep 20, 202611-5034 contacts →

Strong evidence

“Quaestus Leadership Innovators specializes in Executive Search, Leadership & Team Development and Assessment Centers.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceWassenaar, NetherlandsHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

Leadership today requires a style that resonates with future generations: reflective, innovative, and inclusive.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 20261-1020 contacts →

Indirect evidence

“Sinds richten wij ons op de ontwikkeling van mensen en daarmee de organisaties waarin zij werken.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceHellevoetsluis, NetherlandsHQ checked Sep 20, 20261-1015 contacts →

Indirect evidence

“Wij zijn organisatoren van plezier in werk.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“De Vroedt & Thierry BV is considered to be one of the pioneers in the Dutch Executive Search industry with a 50 year history.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceUtrecht, NetherlandsHQ checked Sep 20, 202611-5013 contacts →

Partial evidence

“Navigator is gespecialiseerd in het ontwerpen van 360 graden assessments en het inzichtelijk maken van de bijdrage die leer- en veranderprogramma’s leveren aan de business…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceGorinchem, NetherlandsHQ checked Sep 20, 202611-5013 contacts →

Partial evidence

“Interselect assessments helpt u om op een professionele en kwalitatief goede wijze te ondersteunen bij de selectie en ontwikkeling van uw medewerkers.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceZwolle, NetherlandsHQ checked Sep 20, 20261-1010 contacts →

Indirect evidence

“Wat doen wij?”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceBilthoven, NetherlandsHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“De mens achter gedrag.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceThe Hague, NetherlandsHQ checked Sep 20, 202611-509 contacts →

Partial evidence

“Jonathan Warner is a specialized firm that supports boards, managementteams and leaders to improve their effectiveness and helps to strengthen leadership throughout the…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidence's-hertogenbosch, NetherlandsHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Al meer dan 20 jaar vertrouwen inmiddels meer dan 250 van onze opdrachtgevers op onze mensgerichte aanpak, expertise en persoonlijke toewijding.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidence's-hertogenbosch, NetherlandsHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“De kwaliteit van uw leiderschap is de belangrijkste voorspeller van succes.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceAmsterdam, NetherlandsHQ checked Sep 20, 2026501-1,0008 contacts →

Partial evidence

“TURNING POTENTIAL TO PROGRESS Executive Search, Assessments, Interim Executives and Compensation, Kienbaum has been at the forefront of shaping the future for individuals and…”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceUtrecht, NetherlandsHQ checked Sep 20, 202611-508 contacts →

Partial evidence

“Our highly experienced team operating out of our Amstelveen and Wassenaar offices advises a wide range of Companies and Institutions on leadership issues and assist with…”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidence5213 Hr 's-hertogenbosch, NetherlandsHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“Intalent is een adviesbureau gespecialiseerd in ontwikkeling met assessment, coaching, training en psychologische hulp.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidence's-hertogenbosch, NetherlandsHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“Vind de leider voor onze organisatie tijdelijk of vast.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceThe Hague, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“At Development Dialogue we believe it is crucial to get to the ‘root cause’ of an individual’s temperament by providing them with their true underlying motivations, and giving…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceDen Bosch, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“TRAINING, COACHING, ASSESSMENT.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceHelmond, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“MASE International gaat over leiderschap, in de breedste zin van het woord.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceThe Hague, NetherlandsHQ checked Sep 20, 202611-504 contacts →

Partial evidence

“Identify & Unleash full leadership potential”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceAmsterdam, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“MetisBrown focuses on Executive Search | Leadership Consulting | Executive Coaching.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 143 leadership assessment companies based in the Netherlands

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Leadership assessment companies based in the Netherlands at a glance

As of Sep 20, 2026
24.4%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
10.5%Largest-city concentration · Amsterdam
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
117
11-50
22
51-200
2
201-500
1
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 143 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 leadership assessment 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 “leadership assessment 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 leadership assessment 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 leadership assessment 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, 188 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.

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 leadership assessment 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 leadership assessment companies are there based in the Netherlands?

RevenueBase identified 143 leadership assessment 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?

Personal & Business Improvement, headquartered in Gd, tops this list with the largest team on record.

Which city has the most leadership assessment companies?

Amsterdam leads with 15 headquartered companies, followed by Zwolle (7) and Rotterdam (6).

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 188 verified decision-maker contacts tracked across these 143 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.