Company lists · Data refreshed September 2026

Top 25 Software development security consultants based in the Netherlands

RevenueBase identified 102 software development security consultants headquartered in the Netherlands as of September 2026 and tracks 486 professional contacts across them, including 179 with verified work emails. Amsterdam is the largest hub.

This list covers software development 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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 29, 2026 86% judged on-target in blind review
102Companies
486Contacts tracked
179Verified emails
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The 25 largest software development security consultants based in the Netherlands

Ranked by team size
Top 25 of 102 software development security consultants based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software development security consultants: 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 evidenceVoorhout, NetherlandsHQ checked Sep 29, 202651-20052 contacts →

Strong evidence

“SeQuenX BV offers software development and consulting services with an increased focus on software quality & engineering excellence.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceDelft, NetherlandsHQ checked Sep 29, 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 29, 2026
3Partial evidenceXj, NetherlandsHQ checked Sep 29, 202651-20023 contacts →

Partial evidence

“Riscure is an independent security laboratory founded in 2001 with customers in North America, Europe and Asia.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceNieuwegein, NetherlandsHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“Onze visie: kwaliteit is mensenwerk.”

Source: RevenueBase Database · checked Sep 29, 2026
5Strong evidenceNaarden, NetherlandsHQ checked Sep 29, 202611-5021 contacts →

Strong evidence

“Vest Information Security is an independent, certified consultancy company highly specialized in information security.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceEindhoven, NetherlandsHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“U het briljante idee, de ambitie of de operationele vraag, wij de software expertise en de perfecte werkomgeving voor de realisatie.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceRijswijk, NetherlandsHQ checked Sep 29, 202611-5019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
8Strong evidenceLeiden, NetherlandsHQ checked Sep 29, 202611-5018 contacts →

Strong 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 29, 2026
9Indirect evidenceLeusden, NetherlandsHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Welkom bij Praegus Connect.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5014 contacts →

Strong 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 29, 2026
11Indirect evidenceWaddinxveen, NetherlandsHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Safetech is een adviserend ingenieursbureau gespecialiseerd in beveiligingsadviezen.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceAlmere, NetherlandsHQ checked Sep 29, 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 29, 2026
13Indirect evidenceEindhoven, NetherlandsHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“We are eager to use our expertise to create a digital world where information is secure and websites are reliable.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-1011 contacts →

Partial evidence

“Sekurno is a cybersecurity company that provides security services beyond mere compliance.”

Source: RevenueBase Database · checked Sep 29, 2026
15Strong evidenceThe Hague, NetherlandsHQ checked Sep 29, 202611-506 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceHj, NetherlandsHQ checked Sep 29, 202611-505 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceNieuwegein, NetherlandsHQ checked Sep 29, 20261-105 contacts →

Strong evidence

“Scyon stands for software craftsmanship with a passion for cyber security.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceVeldhoven, NetherlandsHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“At Mantella, it’s all about smart and secure coding.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“DCODX stands for Defensive CODing and eXploitation.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceBerkel-enschot, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Strong evidence

“Software Development, Cyber Security”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceUtrecht, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Codean Labs ethical hackers evaluate the security of your solution and guide you towards vulnerability remediation, from design to production and beyond.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceZuid-holland, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidencePapendrecht, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“SecVision is gespecialiseerd in de organisatorische kant van informatiebeveiliging en IT-technische beveiligingsonderzoeken.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceBest, NetherlandsHQ checked Sep 29, 20261-102 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 102 software development security consultants based in the Netherlands

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Software development security consultants based in the Netherlands at a glance

As of Sep 29, 2026
36.8%Verified-email coverage
4.8Average contacts per company
1-10Median size (employees)
10.8%Largest-city concentration · Amsterdam
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
22
51-200
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 102 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 software development security consultants, 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 “software development security consultants”. 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 software development security consultants), 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 software development 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 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, 179 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 29, 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 software development security consultants, 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 software development security consultants are there based in the Netherlands?

RevenueBase identified 102 software development 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?

Sequenx B.V, headquartered in Ls, tops this list with the largest team on record.

Which city has the most software development security consultants?

Amsterdam leads with 11 headquartered companies, followed by Rotterdam (8) and Eindhoven (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 179 verified decision-maker contacts tracked across these 102 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 29, 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.