Company lists · Data verified August 2026

Top 25 Cybersecurity companies based in Paris, France

Name: Cybersecurity companies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 340 companies tracked

Our directory lists 340 cybersecurity companies based in Paris, France, with 4,682 professional contacts and 1,247 email addresses. The list was last updated in August 2026, and Paris is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

340Companies

4,682Contacts tracked

1,247Verified emails

133Mobile numbers

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The 25 largest cybersecurity companies based in Paris, France

Ranked by team size

Top 25 of 340 cybersecurity companies based in Paris, France, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Filigran	Paris	201-500	167	109
2	S3ns	Paris	51-200	153	85
3	Harfanglab	Paris	51-200	119	83
4	Egerie	Paris	51-200	110	50
5	Quarkslab	Paris	51-200	94	45
6	Strangebee	Paris	51-200	66	42
7	LEXFO	Paris	51-200	65	40
8	Cyberlift	Paris	51-200	55	31
9	Techso Group	Paris	51-200	54	24
10	Mantra	Paris	51-200	52	33
11	Qevlar AI	Paris	51-200	51	31
12	Dattak	Paris	51-200	51	28
13	Feelagile	Paris	11-50	38	30
14	Løvell	Paris	11-50	38	25
15	Kytl Security	Paris	11-50	34	4
16	Bsecure	Paris	51-200	33	18
17	Artifeel	Paris	11-50	31	20
18	Randorisec	Paris	11-50	31	18
19	protected.eu	Paris	51-200	29	19
20	P1 Security	Paris	11-50	29	16
21	Abakus Sécurité	Paris	11-50	29	8
22	Cybersel Group	Paris	11-50	27	18
23	Five Nines	Paris	11-50	26	11
24	WLF	Paris	11-50	21	6
25	Harmonie Technologie Site	Paris	51-200	21	5

Showing 25 of 340 cybersecurity companies based in Paris, France

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Cybersecurity companies based in Paris, France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 340 HQs

133Contacts with mobile numbers

7Emails re-verified in last 30 days

Companies by employee count

1-10

213

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity companies by metro in France

Metro	Companies
Cybersecurity companies in Paris	340
Cybersecurity companies in Lyon	40
Cybersecurity companies in Toulouse	23
Cybersecurity companies in Lille	16
Cybersecurity companies in Rennes	16
Cybersecurity companies in Boulogne-Billancourt	14
Cybersecurity companies in Montpellier	12

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Paris, France.
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: Contact records re-verify on a rolling cadence; 7 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 340 cybersecurity companies based in Paris, France.

Which city has the most cybersecurity companies?

Paris is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 4,682 professional contacts and 1,247 email addresses for the listed cybersecurity companies.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.