Company lists · Data refreshed August 2026

Top 25 Application security consulting firms based in Paris, France

Name: Application security consulting firms based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 82 companies tracked

RevenueBase identified 82 application security consulting firms headquartered in Paris, France as of August 2026 and tracks 464 professional contacts across them, including 166 with verified work emails and 12 with mobile numbers. Paris is the largest hub.

This list covers application security consulting firms 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

82Companies

464Contacts tracked

166Verified emails

12Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest application security consulting firms based in Paris, France

Ranked by team size

Top 25 of 82 application security consulting firms based in Paris, France, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to application security consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	LEXFO	Partial evidence	Paris, France	51-200	65 contacts →
	Partial evidence “LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Source: RevenueBase Database · checked Aug 31, 2026
2	Atlantis	Partial evidence	Paris, France	n/a	36 contacts →
	Partial evidence “Atlantis is an IT consulting company based in Paris, France.” Source: RevenueBase Database · checked Aug 31, 2026
3	Bsecure	Indirect evidence	Paris, France	51-200	33 contacts →
	Indirect evidence “Bsecure est un cabinet d'expertise en cybersécurité 100% français, fondé en 2009, et détenu en fonds propres par ses dirigeants.” Source: RevenueBase Database · checked Aug 31, 2026
4	Randorisec	Partial evidence	Paris, France	11-50	31 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 Aug 31, 2026
5	Cybersel Group	Partial evidence	Paris, France	11-50	27 contacts →
	Partial evidence “Cybersel – Your Trusted Partner in Risk And Compliance For ICT Security Governance Cyber threats and regulatory requirements evolve every day, we help businesses stay ahead.” Source: RevenueBase Database · checked Aug 31, 2026
6	Marte Conseil	Indirect evidence	Paris, France	11-50	18 contacts →
	Indirect evidence “Cabinet d’expertise technique à même de réaliser des prestations de conseil ainsi que la mise en œuvre de ses propres recommandations, Marte intervient au sein des DSI de nombreux…” Source: RevenueBase Database · checked Aug 31, 2026
7	Intuity	Partial evidence	Paris, France	11-50	16 contacts →
	Partial evidence “Nous aidons les entreprises à sécuriser leurs actifs, tels que leurs applications web et leurs systèmes d'information, tout en renforçant la sécurité globale des organisations.” Source: RevenueBase Database · checked Aug 31, 2026
8	Kamea Security	Indirect evidence	Paris, France	11-50	10 contacts →
	Indirect evidence “Our services- Pentest / cybersecurity audit - Red Team as a Service - CISO as a Service - Risk Assessment” Source: RevenueBase Database · checked Aug 31, 2026
9	Cyber Experts	Indirect evidence	Paris, France	1-10	10 contacts →
	Indirect evidence “Startup, VSE and SME specialists, at Cyber Experts, we build a solid digital rampart for your company, allowing it to strengthen itself against cyber attackers.” Source: RevenueBase Database · checked Aug 31, 2026
10	Tilencia	Strong evidence	Paris, France	11-50	9 contacts →
	Strong evidence “Founded in 2021, TILENCIA is an operational consulting firm specialising in digital security strategy around a single mission: operationally supporting organisations in building…” Source: RevenueBase Database · checked Aug 31, 2026
11	Trustable	Indirect evidence	Paris, France	11-50	8 contacts →
	Indirect evidence “Trustable est une start-up spécialisée dans l’évaluation du risque cyber, proposant une offre alliant plateforme SaaS et services managés.” Source: RevenueBase Database · checked Aug 31, 2026
12	Internet Of Trust	Strong evidence	Paris, France	1-10	8 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 Aug 31, 2026
13	Blackbart	Indirect evidence	Paris, France	11-50	7 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 Aug 31, 2026
14	Reciproc-It	Strong evidence	Paris, France	1-10	7 contacts →
	Strong evidence “Reciproc-it is an Information Security System Consulting Firm.” Source: RevenueBase Database · checked Aug 31, 2026
15	Stelau Conseil	Indirect evidence	Paris, France	1-10	6 contacts →
	Indirect evidence “Créé en 2002, Stelau Conseil est un cabinet d'audit et de conseil spécialisé dans la sécurité des systèmes d'information.” Source: RevenueBase Database · checked Aug 31, 2026
16	Maguen Cyber	Partial evidence	Paris, France	51-200	6 contacts →
	Partial evidence “Maguen Cyber was created to provide its clients with the right security services.” Source: RevenueBase Database · checked Aug 31, 2026
17	Leviam	Indirect evidence	Paris, France	11-50	5 contacts →
	Indirect evidence “Leviam est un cabinet de conseil spécialisé dans la cybersécurité.” Source: RevenueBase Database · checked Aug 31, 2026
18	CTO And CO LTD	Partial evidence	Paris, France	1-10	5 contacts →
	Partial evidence “Top executives and Board members of small and medium sized companies have many of the same business related security risks as their Blue-Chip counterparts.” Source: RevenueBase Database · checked Aug 31, 2026
19	Psswrd	Indirect evidence	Paris, France	11-50	4 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 Aug 31, 2026
20	WELAN	Indirect evidence	Paris, France	1-10	4 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 Aug 31, 2026
21	Trackflaw	Indirect evidence	Paris, France	1-10	4 contacts →
	Indirect evidence “Trackflaw est une startup spécialisée dans les tests d'intrusion.” Source: RevenueBase Database · checked Aug 31, 2026
22	MA Cyber	Indirect evidence	Paris, France	1-10	3 contacts →
	Indirect evidence “MA Cyber vous accompagne dans la sécurisation de votre système d'information.” Source: RevenueBase Database · checked Aug 31, 2026
23	VIVAT	Partial evidence	Paris, France	11-50	3 contacts →
	Partial evidence “We are a strategic consulting firm offering rigorously curated high-impact technology solutions to protect your digital assets.” Source: RevenueBase Database · checked Aug 31, 2026
24	Safekeep LLC	Partial evidence	Paris, France	1-10	3 contacts →
	Partial evidence “To assist and help with the cyber security posture of organizations.” Source: RevenueBase Database · checked Aug 31, 2026
25	Caeirus	Indirect evidence	Paris, France	1-10	3 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 Aug 31, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: application security consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names application security consulting firms.
Partial evidence: Its own public description names part of application security consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application security consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 82 application security consulting firms based in Paris, France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 166 reachable decision-makers.

Free signup · no credit card

View the full list →

Application security consulting firms based in Paris, France at a glance

As of Aug 31, 2026

35.8%Verified-email coverage

2.6%Mobile-number coverage

5.7Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 application security consulting firms, 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 “application security consulting firms”. 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 application security consulting firms), 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 application security consulting firms, 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, 166 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 August 31, 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.

Application security consulting firms by metro in France

Application security consulting firms in Paris82

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 application security consulting firms, 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 application security consulting firms are there based in Paris, France?

RevenueBase identified 82 application security consulting firms headquartered in Paris, France as of August 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?

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

Which city has the most application security consulting firms?

Paris leads with 82 headquartered companies, followed by Lyon (11) and Toulouse (9).

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 166 verified decision-maker contacts tracked across these 82 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.

Ready to reach these companies? Verified emails and direct dials for all 82 application security consulting firms based in Paris, France. Start with a free account, no credit card.

Download this list →

Related lists

Application security consulting firms by geography

Browse the directory

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.