Company lists · Data verified August 2026

Top 25 Application security testing companies based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 133 companies tracked

There are 133 application security testing companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 1,526 professional contacts across them, including 475 with verified work emails and 36 with mobile numbers. Paris is the largest hub.

This list covers application security testing companies headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

133Companies

1,526Contacts tracked

475Verified emails

36Mobile numbers

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The 25 largest application security testing companies based in France

Ranked by team size

Top 25 of 133 application security testing companies based in 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	Yogosha	Boulogne-Billancourt	n/a	190	17
2	Synacktiv	Toulouse	51-200	170	125
3	Quarkslab	Paris	51-200	94	45
4	LEXFO	Paris	51-200	65	40
5	Trustinsoft	Paris	11-50	49	32
6	Eshard	n/a	11-50	49	28
7	Dcit Conseil	Sene	n/a	48	1
8	Bsecure	Paris	51-200	33	18
9	Cogiceo	Merle	11-50	32	12
10	Randorisec	Paris	11-50	31	18
11	ACE Service	Rouen	11-50	30	5
12	Certilience	Limonest	11-50	26	12
13	Cybermaker	Saint Cloud	11-50	26	12
14	NBS System	Champs-Sur-Marne	11-50	22	3
15	Bluetrusty	Boulogne-Billancourt	11-50	20	9
16	Cresco Cybersecurity	Montigny-Le-Bretonneux	11-50	19	11
17	Intuity	Paris	11-50	16	7
18	Iparcus	Lille	11-50	15	11
19	u.neat	n/a	11-50	15	5
20	Vaadata	Lyon	11-50	14	4
21	Skillx	Lille	11-50	11	3
22	ASTAR	Toulouse	1-10	11	1
23	Kamea Security	Paris	11-50	10	2
24	Cyber Experts	Paris	1-10	10	2
25	Qacode	Paris	11-50	7	2

Showing 25 of 133 application security testing companies based in France

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Application security testing companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 44 HQs

36Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

10001+

Application security testing companies by metro

Metro	Companies
Application security testing companies in Paris	44
Application security testing companies in Lyon	7
Application security testing companies in Toulouse	6
Application security testing companies in Lille	4
Application security testing companies in Rouen	2
Application security testing companies in Boulogne-Billancourt	2
Application security testing companies in Nantes	2

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 “application security testing companies”, with match quality audited by blind human judging, and headquartered in 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; 3 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 application security testing companies are there based in France?

There are 133 application security testing companies headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Yogosha, headquartered in Boulogne-Billancourt, tops this list with the largest team on record.

Which city has the most application security testing companies?

Paris leads with 44 headquartered companies, followed by Lyon (7) and Toulouse (6).

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 475 verified decision-maker contacts tracked across these 133 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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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.