Company lists · Data refreshed September 2026

Top 14 Healthcare IT security companies based in Paris, France

RevenueBase identified 34 healthcare IT security companies headquartered in Paris, France as of September 2026 and tracks 170 professional contacts across them, including 48 with verified work emails and 2 with mobile numbers. Paris is the largest hub.

This list covers healthcare IT security companies headquartered in Paris, France, 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 12, 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 12, 2026 86% judged on-target in blind review
34Companies
170Contacts tracked
48Verified emails
2Mobile numbers
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The 14 largest healthcare IT security companies based in Paris, France

Ranked by team size
Top 14 of 34 healthcare IT security companies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare IT security 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 evidenceParis, FranceHQ checked Sep 12, 202611-5035 contacts →

Indirect evidence

“KYTL | Spécialiste de la protection des données et des environnements critiques; Fondée par des experts en cybersécurité cumulant plus de 15 ans d’expérience, KYTL accompagne les…”

Source: RevenueBase Database · checked Sep 12, 2026
2Indirect evidenceParis, FranceHQ checked Sep 12, 202611-5025 contacts →

Indirect evidence

“Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.”

Source: RevenueBase Database · checked Sep 12, 2026
3Indirect evidenceParis, FranceHQ checked Sep 12, 202611-5013 contacts →

Indirect evidence

“Are we legion?”

Source: RevenueBase Database · checked Sep 12, 2026
4Indirect evidenceParis, FranceHQ checked Sep 12, 202611-5010 contacts →

Indirect evidence

“ZeroTrust fournit aux PME-ETI une protection totale de leurs actifs et de leurs données.”

Source: RevenueBase Database · checked Sep 12, 2026
5Indirect evidenceParis, FranceHQ checked Sep 12, 20261-1010 contacts →

Indirect evidence

“Chez High Jack, nous sommes bien plus que des accompagnateurs de digitalisation, nous sommes des catalyseurs de la transformation numérique de votre structure!”

Source: RevenueBase Database · checked Sep 12, 2026
6Partial evidenceParis, FranceHQ checked Sep 12, 20261-108 contacts →

Partial evidence

“Founded in February 2014, Internet of Trust is an independent security consulting company based in Paris and in Marseille area.”

Source: RevenueBase Database · checked Sep 12, 2026
7Indirect evidenceParis, FranceHQ checked Sep 12, 202611-505 contacts →

Indirect evidence

“Resilience is a State of Mind Élever la Cybersécurité des PME/ETI Resilium transforme votre cybersécurité en un atout puissant.”

Source: RevenueBase Database · checked Sep 12, 2026
8Indirect evidenceParis, FranceHQ checked Sep 12, 202611-504 contacts →

Indirect evidence

“Fondé et opérationnel depuis septembre 2023, PSSWRD est un cabinet de conseil pure-player en cybersécurité, réunissant des femmes et des hommes engagés autour de valeurs fortes …”

Source: RevenueBase Database · checked Sep 12, 2026
9Indirect evidenceParis, FranceHQ checked Sep 12, 20261-104 contacts →

Indirect evidence

“WELAN est une société de conseil en cybersécurité qui accompagne les entreprises de toutes tailles désireuses de se protéger contre les menaces numériques croissantes.”

Source: RevenueBase Database · checked Sep 12, 2026
10Indirect evidenceParis, FranceHQ checked Sep 12, 20261-104 contacts →

Indirect evidence

“CySAFE Consulting est un cabinet de conseil spécialisé en cybersécurité et management des risques qui accompagne les grandes, comme les petites entreprises, ainsi que les…”

Source: RevenueBase Database · checked Sep 12, 2026
11Indirect evidenceParis, FranceHQ checked Sep 12, 20261-103 contacts →

Indirect evidence

“NovaStill a la conviction profonde que la cybersécurité est un catalyseur du succès de nos clients qui sont aussi nos partenaires.”

Source: RevenueBase Database · checked Sep 12, 2026
12Indirect evidenceParis, FranceHQ checked Sep 12, 20261-103 contacts →

Indirect evidence

“ClickSecure - Partenaire en Cybersécurité pour les PME Nous sommes fiers d'être votre partenaire dévoué en cybersécurité, mettant en œuvre des solutions innovantes pour protéger…”

Source: RevenueBase Database · checked Sep 12, 2026
13Indirect evidenceParis, FranceHQ checked Sep 12, 20261-101 contacts →

Indirect evidence

“Qui sommes-nous?”

Source: RevenueBase Database · checked Sep 12, 2026
14Partial evidenceParis, FranceHQ checked Sep 12, 20261-101 contacts →

Partial evidence

“Protecting your data from the most severe threats begins with a disciplined approach to securing your entire information technology infrastructure.”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 14 of 34 healthcare IT security companies based in Paris, France

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Healthcare IT security companies based in Paris, France at a glance

As of Sep 12, 2026
28.2%Verified-email coverage
1.2%Mobile-number coverage
5.0Average contacts per company
1-10Median size (employees)
108.8%Largest-city concentration · Paris
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
11

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

Company record updated

Median 50.0d

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 healthcare IT security 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 Paris, France whose own description of what they do matches “healthcare IT security 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 healthcare IT security 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 healthcare IT security companies, and records with no verified work email. Companies headquartered outside Paris 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, 48 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 12, 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.

Healthcare IT security companies by metro in France

  • Healthcare IT security companies in Paris37

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 healthcare IT security 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 healthcare IT security companies are there based in Paris, France?

RevenueBase identified 34 healthcare IT security companies headquartered in Paris, France 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?

Kytl Security, headquartered in Paris, tops this list with the largest team on record.

Which city has the most healthcare IT security companies?

Paris leads with 37 headquartered companies, followed by Lyon (6) and Montpellier (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 48 verified decision-maker contacts tracked across these 34 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 12, 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.