Company lists · Data refreshed November 2026

Top 25 IT audit consulting firms based in the Netherlands

RevenueBase identified 213 company matches for IT audit consulting firms associated with the Netherlands as of November 2026 and tracks 1,827 professional contacts across them, including 595 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for IT audit consulting firms 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
213Companies
1,827Contacts tracked
595Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT audit consulting firms based in the Netherlands

Ranked by team size
Top 25 of 213 company matches for IT audit consulting firms 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 matchEindhoven, NetherlandsHQ recorded Nov 5, 202651-200169 contacts →

Exact match

“Joanknecht was founded in 1948 and has been through all phases of the economic cycle.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
3Exact matchNieuwkuijk, NetherlandsHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact matchHoofddorp, NetherlandsHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“Welkom bij Just Audit!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“Confinant is a boutique audit firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“JOINSON & SPICE is the first in the Netherlands to specialise in auditing and accounting of tech companies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact matchUtrecht, NetherlandsHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
17Exact 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
18Exact matchUtrecht, NetherlandsHQ recorded Nov 5, 202651-20016 contacts →

Exact match

“Ferocia helpt organisaties met het optimaliseren van hun sturing en beheersing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchHilversum, NetherlandsHQ recorded Nov 5, 202651-20015 contacts →

Exact match

“Door de alsmaar veranderende, complexere wereld en steeds nieuwe wet- en regelgeving ontstaan er nieuwe risico’s en kansen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchThe Hague, NetherlandsHQ recorded Nov 5, 202611-5015 contacts →

Exact match

“The Audit Company is an established name in the auditing with a long history.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact 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
22Exact 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
23Exact matchUtrecht, NetherlandsHQ recorded Nov 5, 2026201-50012 contacts →

Exact match

“DDG Consulting helps businesses and organizations improve their technology infrastructure and operations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchUtrecht, NetherlandsHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“At Cyber Seals, we believe in a digital world where you can work, innovate, and grow securely.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchBreda, NetherlandsHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“ESJ Audit verzorgt wettelijke controleopdrachten voor middelgrote ondernemingen, zowel nationaal als internationaal.”

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

Showing 25 of 213 IT audit consulting firms based in the Netherlands

See the full list, filter by size, metro and specialty, and access 595 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

IT audit consulting firms based in the Netherlands at a glance

As of Nov 5, 2026
32.6%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
11.7%Largest-city concentration · Amsterdam
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
155
11-50
42
51-200
12
201-500
3
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 213 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 consulting firms” 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 595 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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT audit consulting firms are there based in the Netherlands?

RevenueBase identified 213 company matches for IT audit consulting firms 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?

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

Which city has the most IT audit consulting firms?

Amsterdam leads with 25 company records, followed by Utrecht (11) and The Hague (7).

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 595 professional contacts with verified work emails tracked across these 213 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.

Ready to reach these companies? Verified emails and direct dials for all 213 IT audit consulting firms based in the Netherlands. Start with a free account, no credit card.

Download this list →

Related lists

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.