Company lists · Data refreshed September 2026

Top 20 5g security consulting companies based in the Netherlands

RevenueBase identified 50 5g security consulting companies headquartered in the Netherlands as of September 2026 and tracks 266 professional contacts across them, including 93 with verified work emails. Amsterdam is the largest hub.

This list covers 5g security consulting companies 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
50Companies
266Contacts tracked
93Verified emails
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The 20 largest 5g security consulting companies based in the Netherlands

Ranked by team size
Top 20 of 50 5g security consulting companies 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 5g security consulting companies: 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 evidenceAlmelo, NetherlandsHQ checked Sep 27, 202651-20051 contacts →

Indirect evidence

“Group your Architects in Safety and Intelligence Group is your professional partner for legal compliance, resilient and smart networks.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceRijswijk, NetherlandsHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

“Tachyon Security BV is based just outside The Hague in the Netherlands.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceDelft, NetherlandsHQ checked Sep 27, 202611-5025 contacts →

Partial 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 27, 2026
4Partial evidenceLeiden, NetherlandsHQ checked Sep 27, 202611-5018 contacts →

Partial evidence

“DongIT is an independent web security and web development company specializing in penetration testing, secure software development, and custom-built web applications.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidence’s-hertogenbosch, NetherlandsHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“Elite Networks is a specialist in building and managing secure, agile and reliable networks.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceRotterdam, NetherlandsHQ checked Sep 27, 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 27, 2026
7Partial evidenceAlmere, NetherlandsHQ checked Sep 27, 202611-5011 contacts →

Partial evidence

“Even when your security is well underpinned, it remains important to remain alert to possible vulnerabilities, to the system's alerting and response capabilities and to the…”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceEmmen, NetherlandsHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Gespecialiseerd in cybersecurity”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“Soteryan is a leading provider of cybersecurity consultancy and service solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidencePv, NetherlandsHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“We are BLAUD, your partner and cybersecurity leader with expertise in Security, Compliance and Mobility which are essential when it comes to cybersecurity.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceHj, NetherlandsHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceIjsselstein, NetherlandsHQ checked Sep 27, 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 27, 2026
13Partial evidenceZuid-holland, NetherlandsHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Are you a CTO, CISO, or IT Manager struggling with persistent security challenges?”

Source: RevenueBase Database · checked Sep 27, 2026
14Strong evidenceBest, NetherlandsHQ checked Sep 27, 20261-102 contacts →

Strong evidence

“Pure Networks & Security is mainly a independent consulting company for networking and security.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceNijmegen, NetherlandsHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Securing and coding everything"- Apps- Websites- Hardware- Security consultancy- Security architecture- Large scale platforms including back-ends, front-ends, API's, mobile apps…”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceThe Hague, NetherlandsHQ checked Sep 27, 202611-502 contacts →

Partial evidence

“Inpedio is led by a team of cyber veterans with in-depth knowledge and extensive experience in mobile security and cyber-attack methods.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceVoorschoten, NetherlandsHQ checked Sep 27, 202611-501 contacts →

Indirect evidence

“Advies, Ontwerp, Implementatie, Beheer en Ondersteuning van professioneel beveiligde computernetwerken, bekabeld en/of draadloos voor Onderwijsinstellingen, Zorginstellingen…”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceRotterdam, NetherlandsHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“SecureIT offers strong security services for small and medium sized businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceNetherlandsHQ checked Sep 27, 20261-101 contacts →

Strong evidence

“Cyber Consult is a privately owned company that provides independent information security consulting, advice, and coaching to government agencies and private sector companies…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceDedemsvaart, NetherlandsHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“0ver Yafsec Yafsec (zeg maar jaf-sek) is gespecialiseerd in het beveiligen van netwerkstructuren gekoppeld aan het Internet.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 20 of 50 5g security consulting companies based in the Netherlands

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5g security consulting companies based in the Netherlands at a glance

As of Sep 27, 2026
35.0%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
14.0%Largest-city concentration · Amsterdam
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
16
51-200
3

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 50 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 5g security consulting companies, 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 “5g security consulting companies”. 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 5g security consulting companies), 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 5g security consulting companies, 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, 93 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 5g security consulting companies, 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 5g security consulting companies are there based in the Netherlands?

RevenueBase identified 50 5g security consulting companies 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?

Group 2000, headquartered in Almelo, tops this list with the largest team on record.

Which city has the most 5g security consulting companies?

Amsterdam leads with 7 headquartered companies, followed by Delft (2) and Nijmegen (2).

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 93 verified decision-maker contacts tracked across these 50 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.