Company lists · Data verified August 2026

Top 8 Blockchain security companies based in France

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

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

There are 28 blockchain security companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 155 professional contacts across them, including 45 with verified work emails and 2 with mobile numbers. Paris is the largest hub.

This list covers blockchain security 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.

28Companies

155Contacts tracked

45Verified emails

2Mobile numbers

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The 8 largest blockchain security companies based in France

Ranked by team size

Top 8 of 28 blockchain security 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	Vistory	Velizy-Villacoublay	11-50	43	19
2	Smartchain	Paris	11-50	27	8
3	Dowsers	Paris	11-50	21	10
4	Dataxium	Neuilly-Sur-Seine	11-50	5	1
5	Zyneas	Noisy-Le-Grand	11-50	4	3
6	Blockchains Experts	Paris	1-10	4	2
7	Sarahro SRO	Paris	1-10	2	1
8	Azursafe	Nice	1-10	1	1

Showing 8 of 28 blockchain security companies based in France

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Blockchain security companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 16 HQs

2Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

Blockchain security companies by metro

Metro	Companies
Blockchain security companies in Paris	16
Blockchain security companies in Nice	2
Blockchain security companies in Gardanne	1
Blockchain security companies in Clichy	1
Blockchain security companies in Lyon	1
Blockchain security companies in Bischoffsheim	1
Blockchain security companies in Versailles	1

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 “blockchain security 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; 0 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 blockchain security companies are there based in France?

There are 28 blockchain security companies headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Vistory, headquartered in Velizy-Villacoublay, tops this list with the largest team on record.

Which city has the most blockchain security companies?

Paris leads with 16 headquartered companies, followed by Nice (2) and Gardanne (1).

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 45 verified decision-maker contacts tracked across these 28 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.