Company lists · Data refreshed November 2026

Top 25 IT audit services based in the Netherlands

RevenueBase identified 104 company matches for IT audit services associated with the Netherlands as of November 2026 and tracks 939 professional contacts across them, including 243 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for IT audit 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 5, 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 5, 2026 How this list was built
104Companies
939Contacts tracked
243Verified emails
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The 25 largest IT audit services based in the Netherlands

Ranked by team size
Top 25 of 104 company matches for IT audit services based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchAmsterdam, NetherlandsHQ recorded Nov 5, 202651-20061 contacts →

Exact match

“At Wrangu we understand the challenges our clients face around data privacy management, security, governance, risk and compliance.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202651-20061 contacts →

Exact match

“Past de beheersstructuur nog bij mijn organisatie?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchDelft, NetherlandsHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“LBVD is een Delfts onderzoeks- en adviesbureau gespecialiseerd in digitale veiligheid, cybersecurity (ICT-security) en informatiebeveiliging, met 20+ jaar ervaring.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLeiderdorp, NetherlandsHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“Audittrail verzorgt audits voor en adviseert over de vakgebieden informatiebeveiliging, privacy, governance, risk & compliance en kwaliteit.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchLeuvenheim, NetherlandsHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“In the 13 years that InAudit has been in existence, we have grown from a provider of internal audit services into a group that does much more than that.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLocaties Den Bosch, NetherlandsHQ recorded Nov 5, 20261-1023 contacts →

Exact match

“Privaty is uw partner voor Informatiebeveiliging en Privacy (IBP).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchHaarlem, NetherlandsHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“By predefined steps of analysis, we deliver insights in the level of IT-control and risk, implement consolidated and transparent solutions based on best practices and assist in…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchEindhoven, NetherlandsHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“é.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchApeldoorn, NetherlandsHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“SoliTrust is specialist op gebied van IT-auditing en data-analyse vanuit een focus op financiële data.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBreda, NetherlandsHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“2-Control is an IT audit organization and offers support in providing insight into and improving the reliability of automated information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchZwolle, NetherlandsHQ recorded Nov 5, 20261-1016 contacts →

Exact match

“Argis IT Consultants is your partner in IT Control.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchVlijmen, NetherlandsHQ recorded Nov 5, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchRotterdam, NetherlandsHQ recorded Nov 5, 202611-5013 contacts →

Exact match

“Risguard was founded by Thom, Wolbert and Jurgen, three experienced IT-audit professionals with over 25 years of combined experience in IT audit, IT risk management & IT…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchDriebergen-rijsenburg, NetherlandsHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“WeDoTrust is een advies- en auditorganisatie die directies, bestuurders en toezichthouders helpt grip te krijgen op technologie.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSliedrecht, NetherlandsHQ recorded Nov 5, 202651-20011 contacts →

Exact match

“Hoek en Blok.IT is de professionele IT dienstverlener van Hoek en Blok.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBunnik, NetherlandsHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“At BR1GHT we focus on technology & specialist consulting in the areas of Governance (Controls, Risk, Compliance and Audit), including Finance and IT control.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchVlaardingen, NetherlandsHQ recorded Nov 5, 20261-108 contacts →

Exact match

“Grip IT Consultancy is gespecialiseerd in het geven van advies op het gebied van de AVG, IT-beleid, IT-infrastructuur en Security, het uitvoeren van pentesten op klantomgevingen…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchAbcoude, NetherlandsHQ recorded Nov 5, 202611-507 contacts →

Exact match

“Cyber Security Challengers (CSC) is uw onafhankelijke cybersecurity expert en dienstverlener.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchEindhoven, NetherlandsHQ recorded Nov 5, 20261-107 contacts →

Exact match

“Diggle is een jonge, energieke organisatie met ervaren professionals, gericht op IT-audit, data-analyse en cybersecurity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchRijen, NetherlandsHQ recorded Nov 5, 20261-106 contacts →

Exact match

“Wij zijn GRCguard, de Cyberweerbaarheid partner voor alle ondernemers: van kleine en middelgrote tot grote organisaties.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchThe Hague, NetherlandsHQ recorded Nov 5, 202611-505 contacts →

Exact match

“Cyberus is an Assurance, Advisory and Consultancy firm, active in the areas IT Auditing, Risk Management, Privacy, Compliance & Cyber Security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBodegraven, NetherlandsHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Met meer dan 15 jaar ervaring op het gebied van informatiebeveiliging en privacy ondersteunen we organisaties in het grip krijgen op en continu verbeteren van de beveiliging van…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchHarlingen, NetherlandsHQ recorded Nov 5, 20261-105 contacts →

Exact match

“NoK IB specialiseert zich in informatiebeveiliging: Security, Privacy & IT-audits.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchZoetermeer, NetherlandsHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Proud Innovations is your trusted IT partner for organizations that must comply with strict regulations regarding cybersecurity and data integrity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Bij Socured geloven we niet in vendor-gedreven advies of losse oplossingen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 104 IT audit services based in the Netherlands

See the full list, filter by size, metro and specialty, and access 243 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT audit services based in the Netherlands at a glance

As of Nov 5, 2026
25.9%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
12.5%Largest-city concentration · Amsterdam
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
75
11-50
22
51-200
5
201-500
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 104 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 “IT audit 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 243 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 5, 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 “IT audit services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT audit services are there based in the Netherlands?

RevenueBase identified 104 company matches for IT audit 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?

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

Which city has the most IT audit services?

Amsterdam leads with 13 company records, followed by Zoetermeer (7) and Apeldoorn (4).

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 243 professional contacts with verified work emails tracked across these 104 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 5, 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.