Company lists · Data refreshed September 2026

Top 21 5g security consulting companies based in Paris, France

RevenueBase identified 49 5g security consulting companies headquartered in Paris, France as of September 2026 and tracks 653 professional contacts across them, including 293 with verified work emails and 12 with mobile numbers. Paris is the largest hub.

This list covers 5g security consulting 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 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
49Companies
653Contacts tracked
293Verified emails
12Mobile numbers
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The 21 largest 5g security consulting companies based in Paris, France

Ranked by team size
Top 21 of 49 5g security consulting companies based in Paris, France, 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 evidenceParis, FranceHQ checked Sep 27, 20261,001-5,000382 contacts →

Indirect evidence

“NEVERHACK is a French group specialized in cybersecurity for over 40 years.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceParis, FranceHQ checked Sep 27, 202611-5032 contacts →

Partial evidence

“Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5029 contacts →

Indirect evidence

“We provide services and technologies to identify, detect and recover from critical threats and vulnerabilities on signalling protocols like SS7/SIGTRAN, Diameter, GPRS/GTP, IMS…”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“Basée à Paris, Nuances Technologies est une société française qui développe des solutions d’avant-garde dans le domaine de la sécurité et du contrôle des communications sans fil…”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Our services- Pentest / cybersecurity audit - Red Team as a Service - CISO as a Service - Risk Assessment”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
7Strong evidenceParis, FranceHQ checked Sep 27, 20261-108 contacts →

Strong 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 27, 2026
8Indirect evidenceParis, FranceHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“BlackBart est un cabinet de conseil en cybersécurité accompagnant les organisations publiques et privées dans la sécurisation de leurs environnements numériques et la maîtrise de…”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceParis, FranceHQ checked Sep 27, 202651-2007 contacts →

Partial evidence

“Maguen Cyber was created to provide its clients with the right security services.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceParis, FranceHQ checked Sep 27, 202611-506 contacts →

Partial evidence

“L'unique acteur de référence du consulting cybersécurité indépendant.”

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

Indirect evidence

“Leviam est un cabinet de conseil spécialisé dans la cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceParis, FranceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Membre de #NUMEUM et du #CyberCercle, STRAAD.A, structure de conseil et d'expertise en sécurité globale, se positionne comme un partenaire de l'anticipation et de la maitrise des…”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceParis, FranceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Defenso est un cabinet de conseil indépendant spécialisé en ingénierie de Cyberdéfense.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceParis, FranceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Les problématiques de sécurité sont au cœur des préoccupations de notre société moderne et nous avons parfois du mal à les appréhender de manière dépassionnée.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
16Indirect evidenceParis, FranceHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“AKONIS est un pure-player français du conseil, de l’intégration et de l’ingénierie en cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceParis, FranceHQ checked Sep 27, 20261-104 contacts →

Partial 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 27, 2026
18Indirect evidenceParis, FranceHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“HUSECURE se présente comme un nouvel acteur dans le domaine de la cybersécurité, venant compléter les offres de ses marques sœurs, enrichissant l'expérience et l'héritage du…”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
20Indirect evidenceParis, FranceHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“Fondé en 2017, CAEIRUS est un cabinet d'expertise spécialisé en cybersécurité qui accompagne les entreprises à répondre aux problématiques sécurité au sein de leur système…”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceParis, FranceHQ checked Sep 27, 202611-502 contacts →

Partial evidence

“BMB ConsultX is a cybersecurity consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 21 of 49 5g security consulting companies based in Paris, France

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5g security consulting companies based in Paris, France at a glance

As of Sep 27, 2026
44.9%Verified-email coverage
1.8%Mobile-number coverage
13.3Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Paris
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
18
51-200
4
1,001-5,000
1

Freshness & accuracy

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

Email last verified

Median 29.0d

Company record updated

Median 66.0d

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 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 Paris, France 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 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, 293 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.

5g security consulting companies by metro in France

  • 5g security consulting companies in Paris49

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 Paris, France?

RevenueBase identified 49 5g security consulting 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?

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

Which city has the most 5g security consulting companies?

Paris leads with 49 headquartered companies, followed by Lyon (5) and Lille (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 293 verified decision-maker contacts tracked across these 49 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.