Company lists · Data refreshed September 2026

Top 25 Ics security training providers based in the Netherlands

RevenueBase identified 73 ics security training providers headquartered in the Netherlands as of September 2026 and tracks 710 professional contacts across them, including 96 with verified work emails. Amsterdam is the largest hub.

This list covers ics security training providers 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 28, 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 28, 2026 86% judged on-target in blind review
73Companies
710Contacts tracked
96Verified emails
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The 25 largest ics security training providers based in the Netherlands

Ranked by team size
Top 25 of 73 ics security training providers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to ics security training providers: 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
1Strong evidenceVeenendaal, NetherlandsHQ checked Sep 28, 202611-5077 contacts →

Strong evidence

“TSTC is sinds erkend specialist in trainingen (cyber)security, privacy en informatiebeveiliging.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidencePv, NetherlandsHQ checked Sep 28, 202611-5042 contacts →

Partial evidence

“SOBA is uw opleidingspartner voor fysieke beveiliging, brandveiligheid en security management.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceWoerden, NetherlandsHQ checked Sep 28, 202651-20041 contacts →

Partial evidence

“De Security Academy - a DNV company is hét opleidingsinstituut in Nederland dat zich specifiek richt op het vakgebied informatiebeveiliging, data & privacy, business continuity…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceRotterdam, NetherlandsHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceThe Hague, NetherlandsHQ checked Sep 28, 202611-5019 contacts →

Indirect evidence

“Bij Securesult richten we ons op het bieden van hoogwaardige informatiebeveiligingsoplossingen voor organisaties van elke omvang.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceAmsterdam, NetherlandsHQ checked Sep 28, 202611-5019 contacts →

Partial evidence

“Westhaghe Training & Advies is dè one-stop shop voor al uw (ICT) trainingen.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceAmersfoort, NetherlandsHQ checked Sep 28, 202611-5016 contacts →

Partial evidence

“Onyx Cyber Security provides a number of services related to the field of IT security.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceUtrecht, NetherlandsHQ checked Sep 28, 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 28, 2026
9Partial evidenceRotterdam, NetherlandsHQ checked Sep 28, 202611-5014 contacts →

Partial 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 28, 2026
10Partial evidenceRotterdam, NetherlandsHQ checked Sep 28, 202651-20012 contacts →

Partial evidence

“IPOL verzorgt opleidingen, trainingen en advies voor de veiligheidsbranche.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceAlmere, NetherlandsHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“LanckerWolters beveiliging & ict B.V.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceRijswijk, NetherlandsHQ checked Sep 28, 202611-508 contacts →

Strong evidence

“Hudson Cybertec is a cyber security solution provider for ICS/OT.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceWoerden, NetherlandsHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“OptiSec is een gespecialiseerd cybersecurity trainingscentrum met een ongekende focus op kwaliteit en de mens.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceThe Hague, NetherlandsHQ checked Sep 28, 202611-506 contacts →

Partial evidence

“Blueprint Security specialises in manual penetration testing and multiple IT security certification consultancy.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“Your success is based on clear vision, strategies and business processes.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSittard, NetherlandsHQ checked Sep 28, 202611-505 contacts →

Partial evidence

“Opleidingsinstituut OPB verzorgt een breed scala aan praktijkgerichte opleidingen en trainingen voor de beveiligingsbranche.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceUtrecht, NetherlandsHQ checked Sep 28, 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 28, 2026
18Partial evidenceApeldoorn, NetherlandsHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Vanuit Apeldoorn helpen u graag met- Quick Scans Information Security - Quick Scans Fysieke beveiliging - Quick Scans Kwaliteit - Quick Scans Privacy - Uitleg en ondersteuning bij…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceAlkmaar, NetherlandsHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“Wij verzorgen opleidingen en trainingen binnen het veiligheidsdomein.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLelystad, NetherlandsHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Welkom bij 2Sides Education.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceHaarlem, NetherlandsHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“The Virtual Hacking Labs is an InfoSec e-learning company focusing on practical penetration testing training solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 28, 202611-501 contacts →

Indirect evidence

“BSH Academy is het opleidingsinstituut voor iedereen die een carrière binnen de wereld van informatiebeveiliging en privacybescherming ambieert.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceTilburg, NetherlandsHQ checked Sep 28, 202611-501 contacts →

Indirect evidence

“LWM beveiliging & ict B.V.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceVroomshoop, NetherlandsHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“BeSequre is een organisatie die zich richt op het trainen van bedrijven in een security mindset.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceWoerden, NetherlandsHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Samen kennis delen is vertrouwen bouwen.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 73 ics security training providers based in the Netherlands

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Ics security training providers based in the Netherlands at a glance

As of Sep 28, 2026
13.5%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · Amsterdam
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
49
11-50
19
51-200
4
201-500
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 73 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 ics security training providers, 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 “ics security training providers”. 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 ics security training providers), 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 ics security training providers, 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, 96 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 28, 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 ics security training providers, 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 ics security training providers are there based in the Netherlands?

RevenueBase identified 73 ics security training providers 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?

Tstc ICT & Security Trainingen, headquartered in Veenendaal, tops this list with the largest team on record.

Which city has the most ics security training providers?

Amsterdam leads with 6 headquartered companies, followed by Rotterdam (5) and Almere (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 96 verified decision-maker contacts tracked across these 73 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 28, 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.