Company lists · Data verified August 2026

Top 25 Application security consulting firms based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 267 companies tracked

There are 267 application security consulting firms headquartered in France (RevenueBase, August 2026). RevenueBase tracks 2,173 professional contacts across them, including 624 with verified work emails and 53 with mobile numbers. Paris is the largest hub.

This list covers application security consulting firms 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.

267Companies

2,173Contacts tracked

624Verified emails

53Mobile numbers

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The 25 largest application security consulting firms based in France

Ranked by team size

Top 25 of 267 application security consulting firms 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	Synacktiv	Toulouse	51-200	170	125
2	Sekera	Saint-Quentin-En-Yvelines	51-200	86	28
3	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
4	LEXFO	Paris	51-200	65	40
5	Ornisec	Rennes	11-50	40	16
6	Digitemis	Angers	11-50	38	23
7	Excube	Lyon	11-50	33	22
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	Systemis	Le Kremlin Bicetre	51-200	29	13
13	Cybersel Group	Paris	11-50	27	18
14	Certilience	Limonest	11-50	26	12
15	NBS System	Champs-Sur-Marne	11-50	22	3
16	Cresco Cybersecurity	Montigny-Le-Bretonneux	11-50	19	11
17	Marte Conseil	Paris	11-50	18	8
18	Polaris ST	Saint-Priest	11-50	17	6
19	V6protect	Bordeaux	11-50	16	8
20	Intuity	Paris	11-50	16	7
21	Iparcus	Lille	11-50	15	11
22	Bzhunt	Guipavas	11-50	15	5
23	u.neat	n/a	11-50	15	5
24	Allistic	Lille	11-50	15	3
25	Vaadata	Lyon	11-50	14	4

Showing 25 of 267 application security consulting firms based in France

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Application security consulting firms based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 82 HQs

53Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

192

11-50

51-200

10001+

Application security consulting firms by metro

Metro	Companies
Application security consulting firms in Paris	82
Application security consulting firms in Lyon	11
Application security consulting firms in Toulouse	9
Application security consulting firms in Lille	7
Application security consulting firms in Bordeaux	5
Application security consulting firms in Boulogne-Billancourt	4
Application security consulting firms in Rennes	4

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 consulting firms”, 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; 5 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 consulting firms are there based in France?

There are 267 application security consulting firms headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Synacktiv, headquartered in Toulouse, 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 624 verified decision-maker contacts tracked across these 267 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.