Company lists · Data refreshed November 2026

Top 25 Investigation agencies based in the Netherlands

RevenueBase identified 109 company matches for investigation agencies associated with the Netherlands as of November 2026 and tracks 1,044 professional contacts across them, including 313 with verified work emails. The Hague is the largest hub.

This list covers company matches for investigation agencies 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
109Companies
1,044Contacts tracked
313Verified emails
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The 25 largest investigation agencies based in the Netherlands

Ranked by team size
Top 25 of 109 company matches for investigation agencies 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 matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500329 contacts →

Exact match

“De Algemene Rekenkamer controleert of rijksoverheid geld uitgeeft en beleid uitvoert zoals het de bedoeling was.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAlmelo, NetherlandsHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“Bravo Beveiliging is een door het Ministerie van Justitie en Veiligheid erkende beveiligingsorganisatie en particulier onderzoeksbureau met ruim 25 jaar ervaring op het gebied van…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“BING is een toonaangevend bureau dat onderzoek verricht en training en advies verzorgt rondom integriteit en omgangsvormen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“De Rijksrecherche staat voor een eerlijke overheid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“De Inspectie belastingen, toeslagen en douane toetst of de overheid mensen en bedrijven rechtvaardig behandelt wanneer zij te maken hebben met belastingzaken, toeslagen of de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRijssen, NetherlandsHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Armaex is een professioneel opsporingsbedrijf, gespecialiseerd in het adviseren, begeleiden en uitvoeren van alle voorkomende opsporings- en benaderingswerkzaamheden ten aanzien…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHorst Aan De Maas, NetherlandsHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Your European partner for (forensic) fraud investigations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSliedrecht, NetherlandsHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Of het nu gaat om een hele gemeente, een zandwinvak op de Noordzee of een klein perceel waar nieuwbouw staat gepland, het uitvoeren van een kwalitatief hoogwaardig onderzoek is…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact match’s-hertogenbosch, NetherlandsHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“NXT Expertise is een onafhankelijk en landelijk werkend bureau dat voor aansprakelijke partijen en hun makelaars en verzekeraars onderzoek verricht naar ongevallen en de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchArnhem, NetherlandsHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Unravelling is een onderzoeksbureau gespecialiseerd in rekenkamer- en raadsonderzoek.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAa, NetherlandsHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Welkom bij VIDI!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchGouda, NetherlandsHQ recorded Nov 6, 20261-105 contacts →

Exact match

“DPD Consultancy onderzoekt misstanden binnen organisaties, en helpt bedrijven ze te voorkomen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchVelsen-zuid, NetherlandsHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Integis BV is een zelfstandig en onafhankelijk kantoor van forensisch accountants en andere onderzoekspecialisten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchOosterbeek, NetherlandsHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Wie wij zijn: Signum Interfocus is opgericht in 2004 en is uitgegroeid tot één van de grootste particuliere recherche- en adviesorganisatie van Nederland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEindhoven, NetherlandsHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Investigations Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Holland Integrity Group (HIG) is the leading independent investigation and advisory firm supporting profit and non-profit organisations in increasing their resilience to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNieuwegein, NetherlandsHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Private detective and security agency QUSO BV is located in Europe, having an office in the centre of the Netherlands.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 202611-504 contacts →

Exact match

“LFI24 is specialised in independent incident investigation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Nova Questa is een onafhankelijk, landelijk werkend particulier onderzoeksbureau, gespecialiseerd in tactisch onderzoek naar toedracht, aansprakelijkheid, polisdekking en regres-…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPurmerend, NetherlandsHQ recorded Nov 6, 20261-103 contacts →

Exact match

“GoldenEyes Recherche & Security heeft met meer dan 24 jaar ervaring in de branche een bijzonder trackrecord.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchZaandijk, NetherlandsHQ recorded Nov 6, 202611-502 contacts →

Exact match

“PSG Recherche is a company that delivers high-quality investigation and consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Mr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEgmond Aan Den Hoef, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Biesboer Expertise is a veterinary company based out of Egmond aan den Hoef, Netherlands.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHeerenveen, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“E11EVEN is founded by Theunis Kloosterman and Dirk de Hen in 2011.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAlmere, NetherlandsHQ recorded Nov 6, 202651-2002 contacts →

Exact match

“Bureau Blauw Toezicht & Handhaving: Wij leveren Boa's, toezichthouder, en fiscalisten aan gemeenten en instanties.”

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

Showing 25 of 109 investigation agencies based in the Netherlands

See the full list, filter by size, metro and specialty, and access 313 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Investigation agencies based in the Netherlands at a glance

As of Nov 6, 2026
30.0%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · The Hague
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
84
11-50
19
51-200
3
201-500
2
1,001-5,000
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 109 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 “investigation agencies” 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 313 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 “investigation agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many investigation agencies are there based in the Netherlands?

RevenueBase identified 109 company matches for investigation agencies 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?

Algemene Rekenkamer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most investigation agencies?

The Hague leads with 4 company records, followed by Amersfoort (3) and Amsterdam (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 313 professional contacts with verified work emails tracked across these 109 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.