Company lists · Data refreshed September 2026
Top 25 Security architecture consulting firms based in France
RevenueBase identified 840 security architecture consulting firms headquartered in France as of September 2026 and tracks 14,306 professional contacts across them, including 3,621 with verified work emails and 251 with mobile numbers. Paris is the largest hub.
This list covers security architecture consulting firms 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 6, 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.
The 25 largest security architecture consulting firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,007 | ||||
“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 803 | ||||
“The growing threat of cyber risks, the expansion of cloud computing and the emergence of the DevOps movement are reshaping IT practices, enlighting the relevance of our vision for…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 382 | ||||
“NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 379 | ||||
“Created in 2007, Amarante is one of Europe’s leading security providers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 359 | ||||
“Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 279 | ||||
“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 191 | ||||
“STANLEY Security est devenu Securitas Technology en 2022.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 171 | ||||
“Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 117 | ||||
“EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 96 | ||||
“ARAMYS est une société de Conseil et d'Expertise intervenant sur l'ensemble des problématiques des PME/PMI et Grands Comptes liées aux Systèmes d'Information et de Communication…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 88 | ||||
“Sekera Services est un cabinet de conseil homologué par la DGSSI comme prestataire d’audit de sécurité SI (PASSI) répondant aux exigences en termes de démarche et qualifications…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 83 | ||||
“Depuis 20 ans, Isitix accompagne vos projets informatiques et numériques.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 82 | ||||
“Fondée à Lyon en 2002, KNS est une Entreprise de Service du Numérique qui intervient à tous les niveaux de la sécurisation des Systèmes d'Information en France et à l'étranger.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | NovadisIndirect evidence | 79 | |||
“Fort de 10 années d’expérience et d’innovation dans le domaine de la sûreté, Novadis vous accompagne dans l’élaboration de solutions convergentes et interopérables.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Tevah SystemesIndirect evidence | 78 | |||
“Depuis plus de 18 ans, Tevah Systèmes est devenu un référent en matière de solutions de sécurité.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 75 | ||||
“Magellan Sécurité, an entity of the Magellan Partners Group, offers integrated solutions to protect against internal threats and cyber attacks.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 73 | ||||
“Aduneo vous accompagne à chaque étape pour protéger vos identités, sécuriser vos données et simplifier votre quotidien.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 73 | ||||
“Créée en avril 2005 à Antony, dans les Hauts de Seine, Notre croissance s’effectue aussi bien dans les domaines de la Grande Distribution, du spectacle vivant ou des collectivités…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 72 | ||||
“Créée en 2003, DISTRI SECURITE est une société à taille humaine de sécurité privée.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 66 | ||||
“LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 60 | ||||
“Société française fondée par une équipe spécialisée dans le domaine des réseaux et de la sécurité des systèmes d'information, AlgoSecure a pour ambition de vous accompagner dans…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 840 security architecture consulting firms based in France
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Security architecture consulting firms based in France at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security architecture consulting firms, 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 “security architecture consulting firms”. 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 security architecture consulting firms, 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, 3,621 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 6, 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.
Security architecture consulting firms by metro
- Security architecture consulting firms in Paris242
- Security architecture consulting firms in Lyon28
Frequently asked
How many security architecture consulting firms are there based in France?
RevenueBase identified 840 security architecture consulting firms 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?
Onet Sécurité, headquartered in France, tops this list with the largest team on record.
Which city has the most security architecture consulting firms?
Paris leads with 242 headquartered companies, followed by Lyon (28) and Toulouse (16).
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 3,621 verified decision-maker contacts tracked across these 840 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 6, 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.
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