Company lists · Data refreshed September 2026

Top 25 Hazard assessment companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 142 companies tracked

RevenueBase identified 142 hazard assessment companies headquartered in France as of September 2026 and tracks 814 professional contacts across them, including 226 with verified work emails. Paris is the largest hub.

This list covers hazard assessment companies headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

142Companies

814Contacts tracked

226Verified emails

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The 25 largest hazard assessment companies based in France

Ranked by team size

Top 25 of 142 hazard assessment companies based in France, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hazard assessment companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	YSEIS	Indirect evidence	Maisons-alfort, FranceHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “Plus de 20 années d’expérience.” Source: RevenueBase Database · checked Sep 20, 2026
2	Prevencem	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	51-200	41 contacts →
	Indirect evidence “PREVENCEM, Plus de 40 ans d’expertise au service de la prévention des risques professionnels PREVENCEM est un acteur majeur de la prévention des risques professionnels…” Source: RevenueBase Database · checked Sep 20, 2026
3	Becs Bureau Etudes ET DE Conseils EN Sécurité	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 20, 2026	51-200	32 contacts →
	Indirect evidence “La société BECS Bureau Etudes en Conseils et Sécurité est une entreprise de référence spécialisée dans la coordination de la Sécurité et de la Protection de la santé sur les…” Source: RevenueBase Database · checked Sep 20, 2026
4	ISO Ingénierie	Indirect evidence	Aix En Provence, FranceHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence “Notre société poursuit aujourd’hui son développement, fidèle aux principes fondamentaux qui ont toujours prévalu et qui ont permis, depuis 20 ans, la fidélisation des grands…” Source: RevenueBase Database · checked Sep 20, 2026
5	Domobat Expertises	Indirect evidence	Le Teil, FranceHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Agir en acteur responsable pour un monde plus fiable, durable et porteur de progrès partagés.” Source: RevenueBase Database · checked Sep 20, 2026
6	LEI	Indirect evidence	Vénissieux, FranceHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Le Bureau d’Etudes LEI a été fondé en 1995 il se positionne dans le domaine du diagnostic immobilier et de la prévention des risques et de la sécurité dans le bâtiment et les…” Source: RevenueBase Database · checked Sep 20, 2026
7	HPC International SAS	Indirect evidence	Roscoff, FranceHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Bureau d’étude en Santé-Environnement situé sur Roscoff, HPC INTERNATIONAL est une des filiales du groupe HPC AG, l’une des principales sociétés du secteur de l’environnement en…” Source: RevenueBase Database · checked Sep 20, 2026
8	Evarisk	Indirect evidence	Montpellier, FranceHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “Depuis plus de 15 ans, la société Evarisk est spécialisée dans l’étude méthodologique de la prévention des risques professionnels.” Source: RevenueBase Database · checked Sep 20, 2026
9	AGMS	Indirect evidence	Genlis, FranceHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “AGMS est une société basée à Genlis (21) et intervenant partout en France.” Source: RevenueBase Database · checked Sep 20, 2026
10	Exell Sécurité	Indirect evidence	Tremblay-En-France, FranceHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “Entreprise spécialisée dans la Coordination Sécurité et Protection de la Santé (SPS), les diagnostics, expertises et études (amiante, plomb, état des lieux, acoustiques…” Source: RevenueBase Database · checked Sep 20, 2026
11	Seister	Indirect evidence	Châtenay-malabry, FranceHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “SEISTER is a consulting company specialized in the fields of geosciences, geological and seismic engineering.” Source: RevenueBase Database · checked Sep 20, 2026
12	Chronodesk	Indirect evidence	Chessy, FranceHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “Fort de son expérience de plus de 10 ans dans le conseil, la gestion et la prévention des risques professionnels ChronoDesk vous accompagne dans la mise en place de solutions…” Source: RevenueBase Database · checked Sep 20, 2026
13	Be-Di Bureau D'etude ET Diagnostic Immobilier	Indirect evidence	Moret-loing-et-orvanne, FranceHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “Chez Be-Di, nous sommes votre partenaire de confiance pour tous vos besoins en diagnostic immobilier, qu'il s'agisse de diagnostics plomb, amiante, termites, électricité, gaz…” Source: RevenueBase Database · checked Sep 20, 2026
14	Batexpert	Indirect evidence	Montgeron, FranceHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Fondée il y a plus de 10 ans dans l’Essonne, Bâtexpert s’est spécialisée dans la prévention des risques dans le secteur du bâtiment, et notamment le diagnostic amiante & HAP dans…” Source: RevenueBase Database · checked Sep 20, 2026
15	Alea Prevention	Partial evidence	Marne-la-vallée, FranceHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Through its advisory, support, training and audit activities in the fields of health and safety at work (risk assessment and production of the Healthcare report, arduous…” Source: RevenueBase Database · checked Sep 20, 2026
16	BHA Environnement	Indirect evidence	Buc, FranceHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Expertise, conseil et diagnostic dans le domaine des polluants du bâtiment.” Source: RevenueBase Database · checked Sep 20, 2026
17	HELFY	Indirect evidence	Mazingarbe, FranceHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “Bureau d’étude Technique, Conseil, audit et Formation en Prévention des risques Professionnels, depuis 2004.” Source: RevenueBase Database · checked Sep 20, 2026
18	Technisim Consultants	Indirect evidence	Lyon, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “TechniSim Consultants est un bureau d'études spécialisé dans les domaines suivants - Simulations numériques des dispersions atmosphériques 2D et 3D [chronique et accidentelles]-…” Source: RevenueBase Database · checked Sep 20, 2026
19	Didacthem	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Didacthem a, dès 1995, proposé aux entreprises de mettre à leur disposition ses équipes de professionnels de santé pour identifier et évaluer leurs risques, puis élaborer et…” Source: RevenueBase Database · checked Sep 20, 2026
20	Acep Contrôle	Indirect evidence	Compiègne, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “ACEP Contrôle effectue un état des lieux précis de vos installations, identifie les situations à risques et vous accompagne dans la mise en conformité ainsi que dans les démarches…” Source: RevenueBase Database · checked Sep 20, 2026
21	ACEPE	Indirect evidence	Chevry Cossigny, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
22	A3set	Indirect evidence	Saint-nazaire, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “A3SET (Atlantique Services Santé Sécurité́ et Environnement au Travail) est une entreprise de consulting composé d'experts de différents domaines dont l'objectif est d'apporter…” Source: RevenueBase Database · checked Sep 20, 2026
23	Gaia Consulting Ouest	Indirect evidence	Baugé-en-anjou, FranceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Depuis plus de 10 ans, Gaia Consulting accompagne les entreprises dans la prévention des risques professionnels et l'amélioration de la santé sécurité au travail.” Source: RevenueBase Database · checked Sep 20, 2026
24	Nordiag	Indirect evidence	Rouen, FranceHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Repérages: Spécialiste des repérages avant travaux et avant démolition pour la recherche d'amiante et de plomb.” Source: RevenueBase Database · checked Sep 20, 2026
25	Neodyme Breizh	Indirect evidence	Concarneau, FranceHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “Néodyme est un bureau d’études, d’assistance technique et de formation indépendant, dans les domaines de la maîtrise des risques industriels, professionnels et environnementaux.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hazard assessment companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names hazard assessment companies.
Partial evidence: Its own public description names part of hazard assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hazard assessment companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 142 hazard assessment companies based in France

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Hazard assessment companies based in France at a glance

As of Sep 20, 2026

27.8%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · Paris

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

116

11-50

51-200

201-500

501-1,000

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 142 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hazard assessment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “hazard assessment companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hazard assessment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among hazard assessment companies, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 226 across the full list. 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 September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hazard assessment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many hazard assessment companies are there based in France?

RevenueBase identified 142 hazard assessment companies headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

YSEIS, headquartered in Maisons-Alfort, tops this list with the largest team on record.

Which city has the most hazard assessment companies?

Paris leads with 7 headquartered companies, followed by Lyon (5) and Montpellier (4).

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 226 verified decision-maker contacts tracked across these 142 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.