Company lists · Data refreshed November 2026

Top 25 Telecom cybersecurity software companies based in France

Name: Telecom cybersecurity software companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 110 companies tracked

RevenueBase identified 110 company matches for telecom cybersecurity software companies associated with France as of November 2026 and tracks 2,980 professional contacts across them, including 1,135 with verified work emails. Paris is the largest hub.

This list covers company matches for telecom cybersecurity software companies associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

110Companies

2,980Contacts tracked

1,135Verified emails

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The 25 largest telecom cybersecurity software companies based in France

Ranked by team size

Top 25 of 110 company matches for telecom cybersecurity software companies based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Itrust	Exact match	Toulouse, FranceHQ recorded Nov 5, 2026	51-200	134 contacts →
	Exact match “Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Alleo DE Bouygues Telecom	Exact match	Clichy, FranceHQ recorded Nov 5, 2026	51-200	134 contacts →
	Exact match “Après de nombreuses années de présence à vos côtés sous le nom 1913, notre marque évolue pour devenir ALLEO de Bouygues Telecom.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Gatewatcher	Exact match	Paris, FranceHQ recorded Nov 5, 2026	51-200	126 contacts →
	Exact match “European leader in intrusion detection and advanced threat detection, Gatewatcher has been protecting the critical networks of large companies as well as public institutions since…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Secure-Ic	Exact match	Cesson-sevigne, FranceHQ recorded Nov 5, 2026	51-200	108 contacts →
	Exact match “With presence and customers across 5 continents, Secure-IC is the rising leader and the only global provider of end-to-end cybersecurity solutions for embedded systems and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	L'agence Télécom	Exact match	Marseille, FranceHQ recorded Nov 5, 2026	51-200	104 contacts →
	Exact match “Offering you the best of SFR Business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Quarkslab	Exact match	Paris, FranceHQ recorded Nov 5, 2026	51-200	99 contacts →
	Exact match “Fondée en 2011 par Fred Raynal, Quarkslab est une entreprise française spécialisée dans la cybersécurité et plus spécifiquement dans la protection et l'analyse des logiciels.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Strangebee	Exact match	Paris, FranceHQ recorded Nov 5, 2026	51-200	82 contacts →
	Exact match “StrangeBee is a cybersecurity software company based in Paris.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Sealsq	Exact match	Meyreuil, FranceHQ recorded Nov 5, 2026	51-200	77 contacts →
	Exact match “SEALSQ develops sovereign semiconductor security technologies designed to protect connected devices, communications, and digital infrastructure in the AI and quantum era.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Eset France	Exact match	Marne-la-vallée, FranceHQ recorded Nov 5, 2026	51-200	76 contacts →
	Exact match “Depuis plus de 30 ans, nous sommes là pour veiller à la protection du progrès et de l'innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Secure Systems & Services	Exact match	Aix En Provence, FranceHQ recorded Nov 5, 2026	51-200	65 contacts →
	Exact match “Secure Systems & Services est une filiale de VINCI Energies spécialisée dans les solutions technologiques de sécurité physiques et numériques cybersécurisées.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Omnitech Security	Exact match	Saint Medard En Jalles, FranceHQ recorded Nov 5, 2026	51-200	58 contacts →
	Exact match “Depuis 2005, OMNITECH SECURYTY propose son expertise dans la sûreté et la Cyber-sécurité sur toute la France.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Sysdream	Exact match	Levallois-perret, FranceHQ recorded Nov 5, 2026	51-200	56 contacts →
	Exact match “À propos de SYSDREAM : Fondée il y a plus de 20 ans, Sysdream, filiale Cybersécurité du Groupe Hub One, propose aux comptes publics et privés une offre globale de solutions…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Seclab	Exact match	Pérols, FranceHQ recorded Nov 5, 2026	11-50	39 contacts →
	Exact match “As France's leading provider of cyber protection for critical systems, Seclab secures exchanges by simplifying interconnection architectures and eliminating the risks associated…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	P1 Security	Exact match	Paris, FranceHQ recorded Nov 5, 2026	11-50	33 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Randorisec	Exact match	Paris, FranceHQ recorded Nov 5, 2026	11-50	31 contacts →
	Exact match “Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Artifeel	Exact match	Paris, FranceHQ recorded Nov 5, 2026	11-50	31 contacts →
	Exact match “French start-up Artifeel's mission is to enable infrastructure operators to ensure the continuity and availability of their services (telecoms, energy, water, gas, rail networks…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Qosmos	Exact match	Paris, FranceHQ recorded Nov 5, 2026	201-500	30 contacts →
	Exact match “Enea acquired Qosmos in 2016 to be included in their broader portfolio.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Sec-It	Exact match	Levallois-perret, FranceHQ recorded Nov 5, 2026	11-50	27 contacts →
	Exact match “SEC-IT, filiale du groupe MCA, est le partenaire de référence en cybersécurité, combinant expertise en audit conseil, sécurité opérationnelle et formation pour accompagner les…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	4connect	Exact match	Boulogne-billancourt, FranceHQ recorded Nov 5, 2026	11-50	25 contacts →
	Exact match “4Connect est la filiale technique de L’Agence Télécom.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Riss-Consulting	Exact match	Bry-sur-marne, FranceHQ recorded Nov 5, 2026	11-50	19 contacts →
	Exact match “Network, Security and Cyber Security Company” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Ého.Link	Exact match	Marseille, FranceHQ recorded Nov 5, 2026	11-50	15 contacts →
	Exact match “ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Lemnia	Exact match	Angers, FranceHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “Téléphonie, internet, Cloud français, service informatique et cybersécurité.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Cyber-Ssi	Exact match	Paris, FranceHQ recorded Nov 5, 2026	11-50	12 contacts →
	Exact match “Expert en sécurité et défense des systèmes numériques, nous accompagnons les entreprises et les organismes publics dans la protection de leurs infrastructures et de leurs produits…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Telfax Communications	Exact match	Saint-beauzire, FranceHQ recorded Nov 5, 2026	11-50	11 contacts →
	Exact match “TELFAX Communications est spécialisée dans la mise en place de solutions globales Télécom & Réseaux Qui sommes-nous en quelques chiffres?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Zero Trust SAS	Exact match	Paris, FranceHQ recorded Nov 5, 2026	11-50	10 contacts →
	Exact match “Réduire les risques, couvrir les angles morts et détecter les trajectoires de compromission sur l’ensemble de votre SI.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “telecom cybersecurity software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 110 telecom cybersecurity software companies based in France

See the full list, filter by size, metro and specialty, and access 1,135 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom cybersecurity software companies based in France at a glance

As of Nov 5, 2026

38.1%Verified-email coverage

27.1Average contacts per company

11-50Median size (employees)

30.9%Largest-city concentration · Paris

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 110 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with France whose business descriptions match “telecom cybersecurity software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,135 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Telecom cybersecurity software companies by metro

Telecom cybersecurity software companies in Paris34

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telecom cybersecurity software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom cybersecurity software companies are there based in France?

RevenueBase identified 110 company matches for telecom cybersecurity software companies associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Itrust tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom cybersecurity software companies?

Paris leads with 34 company records, followed by Toulouse (4) and Boulogne-Billancourt (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,135 professional contacts with verified work emails tracked across these 110 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.