Company lists · Data refreshed August 2026

Top 25 Api security companies based in Paris, France

Name: Api security companies 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 73 companies tracked

RevenueBase identified 73 api security companies headquartered in Paris, France as of August 2026 and tracks 465 professional contacts across them, including 172 with verified work emails and 6 with mobile numbers. Paris is the largest hub.

This list covers api security 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 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

73Companies

465Contacts tracked

172Verified emails

6Mobile numbers

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

The 25 largest api security companies based in Paris, France

Ranked by team size

Top 25 of 73 api security companies 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 api security 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Quarkslab	Indirect evidence	Paris, France	51-200	94 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Aug 31, 2026
2	Kytl Security	Indirect evidence	Paris, France	11-50	34 contacts →
	Indirect evidence “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: 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	Five Nines	Indirect evidence	Paris, France	11-50	26 contacts →
	Indirect evidence “Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.” Source: RevenueBase Database · checked Aug 31, 2026
6	Ariovis	Indirect evidence	Paris, France	1-10	16 contacts →
	Indirect evidence “Ariovis est votre partenaire de confiance en cybersécurité.” Source: RevenueBase Database · checked Aug 31, 2026
7	Intuity	Indirect evidence	Paris, France	11-50	16 contacts →
	Indirect 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	DND Agency	Indirect evidence	Paris, France	11-50	13 contacts →
	Indirect evidence “Are we legion?” Source: RevenueBase Database · checked Aug 31, 2026
9	Cybertic	Indirect evidence	Paris, France	1-10	12 contacts →
	Indirect evidence “Cyber attaque, pénétration, hameçonnage… Depuis 2010 et la multiplication des Cyber-attaques, la cyber sécurité n’est plus une option pour les DSI, sa maîtrise est devenu…” Source: RevenueBase Database · checked Aug 31, 2026
10	Zero Trust SAS	Indirect evidence	Paris, France	11-50	10 contacts →
	Indirect evidence “ZeroTrust fournit aux PME-ETI une protection totale de leurs actifs et de leurs données.” Source: RevenueBase Database · checked Aug 31, 2026
11	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
12	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
13	cybersolutions.fr	Strong evidence	Paris, France	11-50	9 contacts →
	Strong evidence “For 10 years we have supported our clients in protecting their information assets: SIEM / SOC / SOAR; Threat Intelligence / UBA / IAM / API Security” Source: RevenueBase Database · checked Aug 31, 2026
14	Internet Of Trust	Partial evidence	Paris, France	1-10	8 contacts →
	Partial 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
15	resilium.ai	Indirect evidence	Paris, France	11-50	5 contacts →
	Indirect evidence “Resilience is a State of Mind Élever la Cybersécurité des PME/ETI Resilium transforme votre cybersécurité en un atout puissant.” Source: RevenueBase Database · checked Aug 31, 2026
16	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
17	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
18	Anguis	Indirect evidence	Paris, France	1-10	4 contacts →
	Indirect evidence “Chez Anguis, nous sommes bien plus qu'une entreprise de sécurité informatique : nous sommes des architectes de la confiance numérique.” Source: RevenueBase Database · checked Aug 31, 2026
19	Blockchains Experts	Indirect evidence	Paris, France	1-10	4 contacts →
	Indirect evidence “Blockchains Experts offers leading cybersecurity services for blockchain.” Source: RevenueBase Database · checked Aug 31, 2026
20	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
21	Novastill	Indirect evidence	Paris, France	1-10	3 contacts →
	Indirect evidence “NovaStill a la conviction profonde que la cybersécurité est un catalyseur du succès de nos clients qui sont aussi nos partenaires.” Source: RevenueBase Database · checked Aug 31, 2026
22	Windfiel	Indirect evidence	Paris, France	1-10	3 contacts →
	Indirect evidence “Welcome to Windfiel - your strategic partner in Cloud Cybersecurity.” Source: RevenueBase Database · checked Aug 31, 2026
23	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
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: api security companies. 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 api security companies.
Partial evidence: Its own public description names part of api security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name api security companies. 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 73 api security companies based in Paris, France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 172 reachable decision-makers.

Free signup · no credit card

View the full list →

Api security companies based in Paris, France at a glance

As of Aug 31, 2026

37.0%Verified-email coverage

1.3%Mobile-number coverage

6.4Average 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

1,001-5,000

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 api security 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 “api security 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 api security 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 api security 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, 172 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.

Api security companies by metro in France

Api security companies in Paris73

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 api security 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 api security companies are there based in Paris, France?

RevenueBase identified 73 api security companies 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?

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

Which city has the most api security companies?

Paris leads with 73 headquartered companies, followed by Toulouse (8) and Lyon (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 172 verified decision-maker contacts tracked across these 73 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 73 api security companies based in Paris, France. Start with a free account, no credit card.

Download this list →

Related lists

Api security companies 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.