Company lists · Data refreshed September 2026

Top 25 Cloud incident response firms based in the Netherlands

RevenueBase identified 140 cloud incident response firms headquartered in the Netherlands as of September 2026 and tracks 1,570 professional contacts across them, including 527 with verified work emails. Amsterdam is the largest hub.

This list covers cloud incident response firms 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 27, 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 27, 2026 86% judged on-target in blind review
140Companies
1,570Contacts tracked
527Verified emails
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The 25 largest cloud incident response firms based in the Netherlands

Ranked by team size
Top 25 of 140 cloud incident response firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cloud incident response firms: 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 27, 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 27, 2026
2Indirect evidenceDelft, NetherlandsHQ checked Sep 27, 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 27, 2026
3Indirect evidenceNieuwegein, NetherlandsHQ checked Sep 27, 202651-20091 contacts →

Indirect evidence

“Tesorion is een Nederlandse, onafhankelijke Managed Security Services Provider (MSSP).”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceLj, NetherlandsHQ checked Sep 27, 202651-20081 contacts →

Indirect evidence

“ON2IT is a global pure-play cybersecurity service provider.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceThe Hague, NetherlandsHQ checked Sep 27, 2026201-50072 contacts →

Indirect evidence

“Xalient ondersteunt toonaangevende organisaties bij het beschermen van hun meest waardevolle middelen: hun medewerkers, applicaties en data.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceThe Hague, NetherlandsHQ checked Sep 27, 202651-20038 contacts →

Partial evidence

“Hunt & Hackett helps European companies prevent, detect and respond to today’s most advanced adversaries, safeguarding them against cyberthreats and espionage.”

Source: RevenueBase Database · checked Sep 27, 2026
7Strong evidenceVlaardingen, NetherlandsHQ checked Sep 27, 202611-5037 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceRotterdam, NetherlandsHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceWormerveer, NetherlandsHQ checked Sep 27, 202611-5021 contacts →

Partial evidence

“Varity stands out in the IT industry by delivering integrated cloud and security solutions, with a strong focus on innovative technologies.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceEindhoven, NetherlandsHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceUtrecht, NetherlandsHQ checked Sep 27, 202611-5016 contacts →

Partial evidence

“BCONN is an expert in the field of cloud infrastructure.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceUtrecht, NetherlandsHQ checked Sep 27, 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 27, 2026
13Indirect evidenceLopik, NetherlandsHQ checked Sep 27, 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 27, 2026
14Indirect evidenceSittard, NetherlandsHQ checked Sep 27, 202611-5013 contacts →

Indirect evidence

“Complete data protection & cybersecurity.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceAlkmaar, NetherlandsHQ checked Sep 27, 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 27, 2026
16Indirect evidenceCapelle Aan Den Ijssel, NetherlandsHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

“Cyber7 Cyber Security Consultancy”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceZuidlaren, NetherlandsHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceRotterdam, NetherlandsHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Amitron is al dan 34 jaar (sinds 1990) een toonaangevende IT Security Specialist, gelegen in Rotterdam.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceBreda, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceNieuwegein, NetherlandsHQ checked Sep 27, 202611-509 contacts →

Partial evidence

“LinProfs is your partner for Cyber Security and Cloud solutions, with offices in the Netherlands and Gran Canaria, Spain.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202611-509 contacts →

Indirect evidence

“Development company”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“Zoeken naar verbinding, en het bieden van totaaloplossingen, dat is waar wij continu mee bezig zijn.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceMaastricht-airport, NetherlandsHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Zoekt u digitale rust en zekerheid?”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceEmmen, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Gespecialiseerd in cybersecurity”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceEindhoven, NetherlandsHQ checked Sep 27, 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 27, 2026

Showing 25 of 140 cloud incident response firms based in the Netherlands

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Cloud incident response firms based in the Netherlands at a glance

As of Sep 27, 2026
33.6%Verified-email coverage
11.2Average contacts per company
1-10Median size (employees)
12.1%Largest-city concentration · Amsterdam
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
86
11-50
39
51-200
8
201-500
6
1,001-5,000
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 140 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 cloud incident response firms, 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 “cloud incident response firms”. 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 cloud incident response firms), 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 cloud incident response firms, 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, 527 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 27, 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 cloud incident response firms, 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 cloud incident response firms are there based in the Netherlands?

RevenueBase identified 140 cloud incident response firms 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 cloud incident response firms?

Amsterdam leads with 17 headquartered companies, followed by Bj (4) and Rotterdam (4).

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 527 verified decision-maker contacts tracked across these 140 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 27, 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.