Company lists · Data refreshed November 2026

Top 8 Warning system suppliers based in France

RevenueBase identified 29 company matches for warning system suppliers associated with France as of November 2026 and tracks 492 professional contacts across them, including 77 with verified work emails. Aytre is the largest hub.

This list covers company matches for warning system suppliers associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 3, 2026 How this list was built
29Companies
492Contacts tracked
77Verified emails
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The 8 largest warning system suppliers based in France

Ranked by team size
Top 8 of 29 company matches for warning system suppliers based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSaint-priest, FranceHQ recorded Nov 3, 202611-5047 contacts →

Exact match

“SERSI SYSTÈME, expert en systèmes de communication, sûreté et sécurité électronique, accompagne intégrateurs, électriciens et entreprises avec un savoir-faire reconnu.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchJurancon, FranceHQ recorded Nov 3, 202611-5033 contacts →

Exact match

“We are an international company since foundation, and we have one and only mission : protecting people's lives.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchValbonne Sophia Antipolis, FranceHQ recorded Nov 3, 202611-5029 contacts →

Exact match

“My Keeper est une PME fondée en juin 2016 qui propose des systèmes d’alerte innovants assurant la sécurité et la sûreté des établissements recevant du public et des travailleurs…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchNanterre, FranceHQ recorded Nov 3, 202611-5021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchTauxigny-saint-bauld, FranceHQ recorded Nov 3, 202611-5013 contacts →

Exact match

“Depuis près de 30 ans, MWS s’est spécialisé dans le développement de solutions de communication dédiées à la sécurité et aux flux d’évènements critiques.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchChallans, FranceHQ recorded Nov 3, 20261-108 contacts →

Exact match

“SERELYS Sécurité est un expert des systèmes de sécurité, apportant des solutions sur mesure pour répondre aux contraintes des professionnels dans tous les domaines.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchVersailles, FranceHQ recorded Nov 3, 2026201-5004 contacts →

Exact match

“SWISSPHONE SARL is a telecommunications company based out of 98 B BOULEVARD DE LA REINE, VERSAILLES, France.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchToulouse, FranceHQ recorded Nov 3, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 8 of 29 warning system suppliers based in France

See the full list, filter by size, metro and specialty, and access 77 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Warning system suppliers based in France at a glance

As of Nov 3, 2026
15.7%Verified-email coverage
17.0Average contacts per company
11-50Median size (employees)
6.9%Largest-city concentration · Aytre
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
11
51-200
3
201-500
1
501-1,000
1
10001+
1

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 29 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with France whose business descriptions match “warning system suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 77 professional contacts with verified work emails across the full matched dataset. 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 November 3, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “warning system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many warning system suppliers are there based in France?

RevenueBase identified 29 company matches for warning system suppliers associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sersi Système tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most warning system suppliers?

Aytre leads with 2 company records, followed by Tours (2) and Bagnolet (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 77 professional contacts with verified work emails tracked across these 29 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 3, 2026.

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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 SmartSearch, 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.