Company lists · Data refreshed September 2026

Top 25 Incident response teams based in the Netherlands

RevenueBase identified 107 incident response teams headquartered in the Netherlands as of September 2026 and tracks 1,211 professional contacts across them, including 361 with verified work emails. Amsterdam is the largest hub.

This list covers incident response teams 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
107Companies
1,211Contacts tracked
361Verified emails
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The 25 largest incident response teams based in the Netherlands

Ranked by team size
Top 25 of 107 incident response teams based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to incident response teams: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRijswijk, NetherlandsHQ checked Sep 20, 2026201-500233 contacts →

Indirect evidence

“Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceDelft, NetherlandsHQ checked Sep 20, 202651-200104 contacts →

Indirect evidence

“Pinewood te Delft is al 28 jaar de specialist in cybersecurity en voor veel bedrijven en organisaties de one-stop security partner.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceRijswijk, NetherlandsHQ checked Sep 20, 202651-20040 contacts →

Partial evidence

“In recent years there has been an impressive growth of (serious) cyber security incidents in our digital vital infrastructure.”

Source: RevenueBase Database · checked Sep 20, 2026
4Strong evidenceVlaardingen, NetherlandsHQ checked Sep 20, 202611-5037 contacts →

Strong evidence

“H2K provides knowledge on incidents response and incidents control.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceUtrecht, NetherlandsHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Onze missie, visie & strategie Wij willen onze samenleving veiliger maken en dat doen we dankzij de zeer specialistische kennis van onze cybersecurity experts.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceDelft, NetherlandsHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“ThreadStone is uw toonaangevende specialist op het gebied van cybersecurity.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceEindhoven, NetherlandsHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Defenced is the IT security knowledge partner for large and medium-sized organizations.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceLeiderdorp, NetherlandsHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“REQON is gespecialiseerd in het uitvoeren van technische beveiligingsonderzoeken in de vorm van (maatwerk) penetratietesten en exposure onderzoeken.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceUtrecht, NetherlandsHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceLopik, NetherlandsHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“Bij HOB ICT Security werken we dagelijks aan het versterken van de weerbaarheid van middelgrote en grote organisaties tegen alle vormen van cyberdreigingen.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“Base is a niche consultancy & managed security solutions provider, offering services enabling organizations, and professionals, to build knowledge & capabilities in information…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceAlkmaar, NetherlandsHQ checked Sep 20, 20261-1012 contacts →

Indirect evidence

“Specialists from Sirius Security have all the skills to help enterprise organisations to secure their IT environment.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceCapelle Aan Den Ijssel, NetherlandsHQ checked Sep 20, 20261-1011 contacts →

Indirect evidence

“Cyber7 Cyber Security Consultancy”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceZuidlaren, NetherlandsHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Waker Cyber Security is hét cybersecuritybedrijf van het Noorden.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceBreda, NetherlandsHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceZwolle, NetherlandsHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Wij beschermen wat van waarde is.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceEindhoven, NetherlandsHQ checked Sep 20, 20261-107 contacts →

Partial evidence

“Nerium is a cyber security company specialized in monitoring, detecting, and responding to digital attacks.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceHj, NetherlandsHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Het internet ontvouwt zich sinds de jaren 90 in razendsnel tempo.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Welcome to Neo Security (a Korper ICT company); your partner in cutting-edge cybersecurity and data protection.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceUtrecht, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“At OTconnect, we are passionate about cybersecurity and helping industrial companies protect their critical infrastructure from cyber threats.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceWeert, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Shellback is an enthusiastic and dedicated team of security specialists based in Weert.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceAn, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“Enwere is opgericht in 2017 en richt zich als cyber security organisatie op het ondersteunen van klanten in hun cyberweerbaarheid journey.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceIjsselstein, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“Titanium24 is dé partner op het gebied van cybersecurity voor bedrijven die de beveiliging van hun digitale infrastructuur serieus nemen.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceVught, NetherlandsHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“Nieuwe Cyberwet 2025: In het najaar van 2025 wordt de Europese Network and Information Security Directive 2 (NIS2) ingevoerd.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 107 incident response teams based in the Netherlands

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Incident response teams based in the Netherlands at a glance

As of Sep 20, 2026
29.8%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
11.2%Largest-city concentration · Amsterdam
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
27
51-200
8
201-500
4

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 107 companies.

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 incident response teams, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “incident response teams”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names incident response teams), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among incident response teams, 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 its RevenueBase Smart Search 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, 361 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 20, 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names incident response teams, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many incident response teams are there based in the Netherlands?

RevenueBase identified 107 incident response teams 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 incident response teams?

Amsterdam leads with 12 headquartered companies, followed by Utrecht (4) and Netherlands (3).

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 361 verified decision-maker contacts tracked across these 107 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 20, 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 Smart Search, 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.