Company lists · Data refreshed September 2026
Top 25 Information security consultants based in the Netherlands
RevenueBase identified 560 information security consultants headquartered in the Netherlands as of September 2026 and tracks 3,844 professional contacts across them, including 1,246 with verified work emails and 237 with mobile numbers. Amsterdam is the largest hub.
This list covers information security consultants headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.
The 25 largest information security consultants based in the Netherlands
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 237 | ||||
“Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 153 | ||||
“Wij ontwerpen, implementeren en beheren veilige IT-infrastructuur en Cybersecurity Services.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 123 | ||||
“Leading Digital Innovation Strict helpt vanaf het strategische idee tot en met de succesvolle implementatie om het allerbeste uit digitale innovaties te halen en deze renderend in…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 106 | ||||
“Pinewood te Delft is al 28 jaar de specialist in cybersecurity en voor veel bedrijven en organisaties de one-stop security partner.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 90 | ||||
“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | YaworksIndirect evidence | 80 | |||
“We are your backbone for a secure and resilient digital infrastructure.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 | ||||
“In een wereld vol risico’s en verplichtingen is het een uitdaging om in control te zijn én je prioriteiten scherp te houden.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 62 | ||||
“DiVetro is een onafhankelijk adviesbureau dat gespecialiseerd is in het beantwoorden en implementeren van IT-gerelateerde strategische vraagstukken.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 60 | ||||
“U moet kunnen vertrouwen op de beschikbaarheid en veiligheid van uw bedrijfskritische systemen.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 52 | ||||
“Goed advies levert geld op.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 | ||||
“Ready to turn your organization into a frontrunner?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 | ||||
“Ferwerda Beveiliging geeft onafhankelijk advies en bemiddeling op het gebied van veiligheid.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 | ||||
“Assets Only® Business Consultants met een focus op Risk, Compliance & ESG ondersteund door procesoptimalisatie en datamanagement.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 | ||||
“LBVD is een Delfts onderzoeks- en adviesbureau gespecialiseerd in digitale veiligheid, cybersecurity (ICT-security) en informatiebeveiliging, met 20+ jaar ervaring.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 23 | ||||
“Vest Information Security is an independent, certified consultancy company highly specialized in information security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 23 | ||||
“ThreadStone is uw toonaangevende specialist op het gebied van cybersecurity.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 | ||||
“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…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 21 | ||||
“PuraSec levert expertise op het gebied van cybersecurity binnen de deelgebieden; mens, beleid en techniek.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 20 | ||||
“Digitale veiligheid is van levensbelang voor bedrijven, de maatschappij en de mens.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | Smits VAN Burgst BeveiligingIndirect evidence | 19 | |||
“Smits van Burgst Beveiliging B.V.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 | ||||
“Bauhaus, founded in 2013, is a boutique company with 25 internal employees and 25 business partners.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 | ||||
“Bij Securesult richten we ons op het bieden van hoogwaardige informatiebeveiligingsoplossingen voor organisaties van elke omvang.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | West ConsultingIndirect evidence | 19 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 | ||||
“DongIT is an independent web security and web development company specializing in penetration testing, secure software development, and custom-built web applications.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 560 information security consultants based in the Netherlands
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Information security consultants based in the Netherlands at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among information security consultants, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- 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
- Companies headquartered in the Netherlands whose own description of what they do matches “information security consultants”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among information security consultants, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 1,246 across the full list. 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 September 3, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Information security consultants by metro
- Information security consultants in Amsterdam56
Frequently asked
How many information security consultants are there based in the Netherlands?
RevenueBase identified 560 information security consultants headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Fox-It, headquartered in Gk, tops this list with the largest team on record.
Which city has the most information security consultants?
Amsterdam leads with 56 headquartered companies, followed by Utrecht (19) and Rotterdam (16).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,246 verified decision-maker contacts tracked across these 560 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 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.
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