Company lists · Data refreshed November 2026

Top 25 IT audit advisory services based in the Netherlands

RevenueBase identified 146 company matches for IT audit advisory services associated with the Netherlands as of November 2026 and tracks 1,250 professional contacts across them, including 507 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for IT audit advisory 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
146Companies
1,250Contacts tracked
507Verified emails
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The 25 largest IT audit advisory services based in the Netherlands

Ranked by team size
Top 25 of 146 company matches for IT audit advisory 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 matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-200185 contacts →

Exact match

“Adviesorganisatie Improven verbetert de processen, informatievoorziening en projecten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20265,001-10,00091 contacts →

Exact match

“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNieuwkuijk, NetherlandsHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“U moet kunnen vertrouwen op de beschikbaarheid en veiligheid van uw bedrijfskritische systemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchArnhem, NetherlandsHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Past de beheersstructuur nog bij mijn organisatie?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLeiderdorp, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchLeuvenheim, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202611-5023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHoofddorp, NetherlandsHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Welkom bij Just Audit!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLocaties Den Bosch, NetherlandsHQ recorded Nov 6, 20261-1023 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHaarlem, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
13Exact matchApeldoorn, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
14Exact matchBreda, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
15Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Bauhaus, founded in 2013, is a boutique company with 25 internal employees and 25 business partners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchZwolle, NetherlandsHQ recorded Nov 6, 20261-1016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVlijmen, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
19Exact matchDriebergen-rijsenburg, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
20Exact matchBunnik, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
21Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“Into Control is gespecialiseerd in het adviseren en ondersteunen van uw organisatie bij de implementatie van interne beheersing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Duijnborgh Audit is een onafhankelijke audit- en adviesorganisatie en biedt pragmatische en sterk oplossingsgerichte ondersteuning aan grote en middelgrote ondernemingen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVlaardingen, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
24Exact matchAlmere, NetherlandsHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Audit Ready’s solutions are not standard.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHalfweg, NetherlandsHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Transparency and reliability are core values for Conify.”

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

Showing 25 of 146 IT audit advisory services based in the Netherlands

See the full list, filter by size, metro and specialty, and access 507 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT audit advisory services based in the Netherlands at a glance

As of Nov 6, 2026
40.6%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
12.3%Largest-city concentration · Amsterdam
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
106
11-50
27
51-200
10
201-500
2
5,001-10,000
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 146 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 advisory 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 507 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 “IT audit advisory services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 146 company matches for IT audit advisory 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?

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

Which city has the most IT audit advisory services?

Amsterdam leads with 18 company records, followed by Zoetermeer (6) and Amersfoort (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 507 professional contacts with verified work emails tracked across these 146 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.