Company lists · Data refreshed September 2026

Top 24 Managed security services companies based in France

Name: Managed security services companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 384 companies tracked

RevenueBase identified 384 managed security services companies headquartered in France as of September 2026 and tracks 25,438 professional contacts across them, including 4,633 with verified work emails and 389 with mobile numbers. Paris is the largest hub.

This list covers managed security services companies headquartered in 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, how directly it supports the match, and when it was last checked. Data refreshed September 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

384Companies

25,438Contacts tracked

4,633Verified emails

389Mobile numbers

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The 24 largest managed security services companies based in France

Ranked by team size

Top 24 of 384 managed security services companies based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed security services companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Orange CyberdefenseIndirect evidence	Nanterre, FranceHQ checked Sep 5, 2026	1,001-5,000	3,673
	“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: company website · checked Sep 5, 2026
2	I-TracingPartial evidence	Courbevoie, FranceHQ checked Sep 5, 2026	1,001-5,000	639
	“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: company website · checked Sep 5, 2026
3	Byblos GroupIndirect evidence	Lissieu, FranceHQ checked Sep 5, 2026	1,001-5,000	538
	“Byblos Group est un groupe indépendant spécialisé dans la protection des personnes, des biens et des données, avec une approche sur mesure, fondée sur l’excellence opérationnelle…” Source: company website · checked Sep 5, 2026
4	own.securityIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	506
	“Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: company website · checked Sep 5, 2026
5	NeverhackIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	1,001-5,000	382
	“NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: company website · checked Sep 5, 2026
6	France GardiennageIndirect evidence	Toulouse, FranceHQ checked Sep 5, 2026	1,001-5,000	326
	“Depuis plus de 20 ans, France Gardiennage s'est donné pour mission d'être le partenaire de votre tranquillité.” Source: company website · checked Sep 5, 2026
7	Stanley Security FrancePartial evidence	Ivry-sur-seine, FranceHQ checked Sep 5, 2026	1,001-5,000	191
	“STANLEY Security est devenu Securitas Technology en 2022.” Source: company website · checked Sep 5, 2026
8	Dpsa ILE DE FranceIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	501-1,000	182
	“DPSA Ile de France est un des acteurs majeurs de la sécurité privée en Ile de France depuis 1980.” Source: company website · checked Sep 5, 2026
9	IVT SecurityPartial evidence	Yainville, FranceHQ checked Sep 5, 2026	51-200	172
	“Depuis 1986, IVT Security s’adapte aux évolutions technologiques en matière de sécurité destinée aux professionnels.” Source: company website · checked Sep 5, 2026
10	Artemis Group 7 FilialesIndirect evidence	St.-denis, FranceHQ checked Sep 5, 2026	1,001-5,000	148
	“Fondée en 1997, notre société familiale de sécurité privée s'est d'emblée investie dans la professionnalisation de ses équipes, accordant la priorité à la qualité de ses services…” Source: company website · checked Sep 5, 2026
11	Services Network SecurityPartial evidence	Montpellier, FranceHQ checked Sep 5, 2026	201-500	144
	“Créée en Juin 2002, Services Network Security est spécialisée dans la sécurisation des passerelles internet et dans les interconnexions VPN.” Source: company website · checked Sep 5, 2026
12	SekoiaIndirect evidence	Rennes, FranceHQ checked Sep 5, 2026	51-200	134
	“Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.” Source: company website · checked Sep 5, 2026
13	Sotel GroupeIndirect evidence	L'union, FranceHQ checked Sep 5, 2026	201-500	121
	“Créé, il y a 40 ans par les principaux établissements financiers de la région Midi-Pyrénées, nous sommes initialement spécialisé dans la télésurveillance bancaire.” Source: company website · checked Sep 5, 2026
14	CS In CybersecurityIndirect evidence	Le Plessis-robinson, FranceHQ checked Sep 5, 2026	51-200	75
	“Acteur majeur de la cybersécurité, CS Group s'appuie sur ses équipes sont composées d’experts pluridisciplinaires qui offrent à nos clients une vision claire et une capacité…” Source: company website · checked Sep 5, 2026
15	Distri SécuritéPartial evidence	Les Essarts-le-roi, FranceHQ checked Sep 5, 2026	501-1,000	72
	“Créée en 2003, DISTRI SECURITE est une société à taille humaine de sécurité privée.” Source: company website · checked Sep 5, 2026
16	EXEOPartial evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	67
	“EXEO, founded in 2012, is a multi-specialist Managed Services Cloud Provider.” Source: company website · checked Sep 5, 2026
17	CopwellIndirect evidence	Clichy, FranceHQ checked Sep 5, 2026	51-200	51
	“COPWELL, Votre DSI externalisée en Île‑de‑France pour PME & TPE exigeantes.” Source: company website · checked Sep 5, 2026
18	ISO SecuritePartial evidence	Orvault, FranceHQ checked Sep 5, 2026	11-50	50
	“Découvrez notre nouveau site internet : iso-securite.fr Signes distinctifs - Qualité des équipes - Expertise technique, législative et normative - Certifications & agréments aux…” Source: company website · checked Sep 5, 2026
19	RedopusIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	47
	“Créé en 2017, REDOPUS est spécialisée en sécurité, réseaux des systèmes d'informations.” Source: company website · checked Sep 5, 2026
20	Dcit ConseilIndirect evidence	Sene, FranceHQ checked Sep 5, 2026	n/a	47
	“DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: company website · checked Sep 5, 2026
21	CYNAPartial evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	41
	“Cyna is the managed SOC that protects, detects, and responds to cyber threats 24/7.” Source: company website · checked Sep 5, 2026
22	Ranc DeveloppementIndirect evidence	Fos Sur Mer, FranceHQ checked Sep 5, 2026	51-200	39
	“Ranc Développement vous propose une solution globale de sécurité, clés en main.” Source: company website · checked Sep 5, 2026
23	Kytl SecurityIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	35
	“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: company website · checked Sep 5, 2026
24	ExcubeIndirect evidence	Lyon, FranceHQ checked Sep 5, 2026	11-50	33
	“Notre positionnement Fondé en 2018, EXCUBE, cabinet-conseil spécialisé en Cybersécurité, délivre ses prestations en s’appuyant sur la connaissance du métier de ses clients…” Source: company website · checked Sep 5, 2026

Showing 24 of 384 managed security services companies based in France

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Managed security services companies based in France at a glance

As of Sep 5, 2026

1-10Median size (employees)

ParisLargest hub · 86 HQs

389Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

220

11-50

108

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

4,372

31–60

236

61–90

90–180

180+

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 managed security services companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “managed security services companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among managed security services companies, and records with no verified work email. Companies headquartered outside France 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 an evidence 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, 4,633 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 5, 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.

Managed security services companies by metro

Managed security services companies in Paris86

Frequently asked

How many managed security services companies are there based in France?

RevenueBase identified 384 managed security services companies headquartered in 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?

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

Which city has the most managed security services companies?

Paris leads with 86 headquartered companies, followed by Lyon (9) and Lille (7).

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 4,633 verified decision-maker contacts tracked across these 384 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 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.