Company lists · Data refreshed September 2026
Top 14 Data security consulting firms based in Amsterdam, Netherlands
RevenueBase identified 40 data security consulting firms headquartered in Amsterdam, Netherlands as of September 2026 and tracks 199 professional contacts across them, including 63 with verified work emails and 7 with mobile numbers. Amsterdam is the largest hub.
This list covers data security consulting firms headquartered in Amsterdam, 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 10, 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.
The 14 largest data security consulting firms based in Amsterdam, Netherlands
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 91 contacts → | ||||
Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8 contacts → | ||||
Partial evidence “SECURiMENT provides software solutions and services for security needs of your company.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7 contacts → | ||||
Indirect evidence “Soteryan is a leading provider of cybersecurity consultancy and service solutions.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 4 | 5 contacts → | ||||
Partial evidence “CyberTrust is a boutique of cybersecurity specialists that assists organizations in implementing effective and sustainable security to support your digital innovation.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 5 | 5 contacts → | ||||
Strong evidence “Welcome to Neo Security (a Korper ICT company); your partner in cutting-edge cybersecurity and data protection.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3 contacts → | ||||
Indirect evidence “Bij Socured geloven we niet in vendor-gedreven advies of losse oplossingen.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3 contacts → | ||||
Strong evidence “Welcome to The FIR, your cyber security boutique offering expert consulting, digital forensics, and incident response services.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3 contacts → | ||||
Partial evidence “Think Security helpt uw organisatie met het oplossen van informatiebeveiligingsproblemen.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2 contacts → | ||||
Indirect evidence “Stolwijk & Van Onselen Consultancy is het onafhankelijk beveiligingsadviesbureau voor de hoog residentiële markt, bedrijven, instellingen en organisaties.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2 contacts → | ||||
Partial evidence “Our area of focus is evaluating cyber risk, ensuring compliance and evaluating your security with your third party partners.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1 contacts → | ||||
Partial evidence “Working with data has many advantages.” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Partial evidence “Expert Services for Cyber Security Our mission is to offer the top notch professionals with the knowledge of latest cyber tech tools help you to build security into your business…” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1 contacts → | ||||
Partial evidence “Brightline Security offers security services and consultancy designed to protect the personal safety and property of high net-worth families and entrepreneurs, diplomats and other…” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1 contacts → | ||||
Strong evidence “Companies make significant investments in security, but did you know that 80% of data breaches are caused by incorrect password behavior?” Source: RevenueBase Database · checked Sep 10, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: data security consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names data security consulting firms.
- Partial evidence
- Its own public description names part of data security consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name data security consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 14 of 40 data security consulting firms based in Amsterdam, Netherlands
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Data security consulting firms based in Amsterdam, Netherlands at a glance
As of Sep 10, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 11.0dCompany record updated
Median 55.0dHow 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 data security consulting 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 Amsterdam, Netherlands whose own description of what they do matches “data security consulting 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 data security consulting 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 data security consulting firms, and records with no verified work email. Companies headquartered outside Amsterdam 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, 63 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 10, 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.
Data security consulting firms by metro in the Netherlands
- Data security consulting firms in Amsterdam42
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 data security consulting 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 data security consulting firms are there based in Amsterdam, Netherlands?
RevenueBase identified 40 data security consulting firms headquartered in Amsterdam, 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?
Protiviti The Netherlands, headquartered in Amsterdam, tops this list with the largest team on record.
Which city has the most data security consulting firms?
Amsterdam leads with 42 headquartered companies, followed by Zoetermeer (11) and The Hague (11).
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 63 verified decision-maker contacts tracked across these 40 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 10, 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.
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