Company lists · Data refreshed November 2026

Top 25 Internal audit outsourcing firms based in the Netherlands

Name: Internal audit outsourcing firms based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 58 companies tracked

RevenueBase identified 58 company matches for internal audit outsourcing firms associated with the Netherlands as of November 2026 and tracks 422 professional contacts across them, including 153 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for internal audit outsourcing 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

58Companies

422Contacts tracked

153Verified emails

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The 25 largest internal audit outsourcing firms based in the Netherlands

Ranked by team size

Top 25 of 58 company matches for internal audit outsourcing 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Auditdienst Acam	Exact match	Amsterdam, NetherlandsHQ recorded Nov 5, 2026	51-200	61 contacts →
	Exact match “Past de beheersstructuur nog bij mijn organisatie?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Audittrail	Exact match	Leiderdorp, NetherlandsHQ recorded Nov 5, 2026	11-50	25 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
3	Inaudit BV	Exact match	Leuvenheim, NetherlandsHQ recorded Nov 5, 2026	11-50	25 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
4	Just Audit B.V	Exact match	Hoofddorp, NetherlandsHQ recorded Nov 5, 2026	11-50	23 contacts →
	Exact match “Welkom bij Just Audit!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	2-Control	Exact match	Breda, NetherlandsHQ recorded Nov 5, 2026	11-50	18 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
6	Argis IT Consultants	Exact match	Zwolle, NetherlandsHQ recorded Nov 5, 2026	1-10	16 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
7	Ferocia	Exact match	Utrecht, NetherlandsHQ recorded Nov 5, 2026	51-200	16 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
8	ARC People Audit, Risk EN Compliance	Exact match	Hilversum, NetherlandsHQ recorded Nov 5, 2026	51-200	15 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
9	Risguard	Exact match	Rotterdam, NetherlandsHQ recorded Nov 5, 2026	11-50	13 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
10	ESJ Audit & Assurance BV	Exact match	Breda, NetherlandsHQ recorded Nov 5, 2026	11-50	11 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
11	Weact Audit Consult Temp	Exact match	Rotterdam, NetherlandsHQ recorded Nov 5, 2026	1-10	9 contacts →
	Exact match “weACT: Drie pijlers, één missie.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	3angles	Exact match	Hillegom, NetherlandsHQ recorded Nov 5, 2026	11-50	8 contacts →
	Exact match “3angles is u graag van dienst.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Duijnborgh Audit BV	Exact match	Utrecht, NetherlandsHQ recorded Nov 5, 2026	1-10	8 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 5, 2026 · View company records in RevenueBase
14	Accoris	Exact match	Apeldoorn, NetherlandsHQ recorded Nov 5, 2026	11-50	6 contacts →
	Exact match “ACCORIS wordt gevormd door een netwerk van professionals op het gebied van Corporate Governance, IT audits, Interim- en projectmanagement, fusies en overnames, management buy-outs…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	ONE Risk Advisory B.V	Exact match	Amsterdam, NetherlandsHQ recorded Nov 5, 2026	1-10	6 contacts →
	Exact match “ONE Risk Advisory is an independent advisory firm in Risk Management and Internal Audit.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Cyberus	Exact match	The Hague, NetherlandsHQ recorded Nov 5, 2026	11-50	5 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
17	Corporate Finance Solutions	Exact match	Strijen, NetherlandsHQ recorded Nov 5, 2026	1-10	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	IT Risk Control	Exact match	Hengelo, NetherlandsHQ recorded Nov 5, 2026	1-10	2 contacts →
	Exact match “IT Risk Control is een onafhankelijke en professionele dienstverlener van IT-auditdiensten en IT-adviesdiensten met ervaren en gecertificeerd medewerkers op het gebied van…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Freshfinance BV	Exact match	Nijmegen, NetherlandsHQ recorded Nov 5, 2026	1-10	2 contacts →
	Exact match “FreshFinance BV is ontstaan vanuit de jarenlange expertise van twee registeraccountants waarvan een groot deel bij een van de BIG4 accountantsorganisaties.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Specto Auditing	Exact match	Echt, NetherlandsHQ recorded Nov 5, 2026	11-50	1 contacts →
	Exact match “Realiseer operational excellence met Specto’s krachtige audits en uitgebreide rapportagemogelijkheden voor kwaliteit, betrouwbaarheid, kostenbesparing en continue verbetering.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Bewier Risk & Management Services	Exact match	Amersfoort, NetherlandsHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Impossible is not an option; I find solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Audit Services Europe B.V	Exact match	Sliedrecht, NetherlandsHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Audit Services Europe B.V.(ASE) is als dochter van CORBO Organisatie, Advies en Expertise B.V.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	VAN Grinsven Consulting	Exact match	Hedel, NetherlandsHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Van Grinsven Consulting is specialized in risk management and IT Audit.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Quintesense	Exact match	Eindhoven, NetherlandsHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Quintesense provides (internal) auditing capacity, consultancy services in the area of internal control and compliance.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Volmachtaudits B.V	Exact match	Amersfoort, NetherlandsHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Volmachtaudits BV is een onafhankelijk auditorganisatie die verzekeraars ondersteunt bij de beheersing van hun, aan gevolmachtigde agenten, uitbestede werkzaamheden.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “internal audit outsourcing firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 58 internal audit outsourcing firms based in the Netherlands

See the full list, filter by size, metro and specialty, and access 153 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Internal audit outsourcing firms based in the Netherlands at a glance

As of Nov 5, 2026

36.3%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

10.3%Largest-city concentration · Amsterdam

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 58 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 “internal audit outsourcing 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 153 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 “internal audit outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internal audit outsourcing firms are there based in the Netherlands?

RevenueBase identified 58 company matches for internal audit outsourcing 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?

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

Which city has the most internal audit outsourcing firms?

Amsterdam leads with 6 company records, followed by Aa (3) and Amersfoort (2).

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 153 professional contacts with verified work emails tracked across these 58 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.