Company lists · Data refreshed September 2026

Top 25 Nuclear remediation contractors based in France

Name: Nuclear remediation contractors based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 82 companies tracked

RevenueBase identified 82 nuclear remediation contractors headquartered in France as of September 2026 and tracks 9,015 professional contacts across them, including 3,215 with verified work emails. Lyon is the largest hub.

This list covers nuclear remediation contractors 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 17, 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 17, 2026 86% judged on-target in blind review

82Companies

9,015Contacts tracked

3,215Verified emails

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The 25 largest nuclear remediation contractors based in France

Ranked by team size

Top 25 of 82 nuclear remediation contractors based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to nuclear remediation contractors: 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	Orano DS	Indirect evidence	Massy, FranceHQ checked Sep 17, 2026	5,001-10,000	1,684 contacts →
	Indirect evidence “Orano DS fait partie du Groupe Orano, le fournisseur de référence du cycle du combustible nucléaire.” Source: RevenueBase Database · checked Sep 17, 2026
2	Onet Technologies	Partial evidence	Marseille, FranceHQ checked Sep 17, 2026	1,001-5,000	1,664 contacts →
	Partial evidence “Onet Technologies has 40 years of experience in the nuclear industry, with a strong expertise in engineering and services for reactor maintenance; dismantling, decommissioning and…” Source: RevenueBase Database · checked Sep 17, 2026
3	NUVIA	Indirect evidence	Rueil Malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	1,537 contacts →
	Indirect evidence “Subsidiary of the world-leading VINCI group, NUVIA is an international company that has been operating on highly regulated and sensitive industrial sites for over 60 years.” Source: RevenueBase Database · checked Sep 17, 2026
4	Spie Nucléaire	Indirect evidence	Cergy-pontoise Cedex, FranceHQ checked Sep 17, 2026	1,001-5,000	1,079 contacts →
	Indirect evidence “À propos de SPIE Nucléaire Filiale de SPIE France, SPIE Nucléaire est le partenaire de référence multi-technique dans la conception, la réalisation, les travaux de modification…” Source: RevenueBase Database · checked Sep 17, 2026
5	Cyclife	Partial evidence	Paris La Défense Cedex, FranceHQ checked Sep 17, 2026	1,001-5,000	440 contacts →
	Partial evidence “As a European pioneer, Cyclife group offers integrated servicing in nuclear decommissioning and dismantling radioactive waste management.” Source: RevenueBase Database · checked Sep 17, 2026
6	Valgo Groupe	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	501-1,000	279 contacts →
	Indirect evidence “VALGO - Régénérer, Rénover, Revaloriser Entreprise internationale spécialisée dans la réhabilitation des sites pollués, VALGO transforme les sols, bâtiments et infrastructures…” Source: RevenueBase Database · checked Sep 17, 2026
7	Serpol	Indirect evidence	Vénissieux, FranceHQ checked Sep 17, 2026	201-500	180 contacts →
	Indirect evidence “Depuis 1983, SERPOL est une entreprise engagée au service de l’environnement et de ses clients.” Source: RevenueBase Database · checked Sep 17, 2026
8	GSF Energia	Indirect evidence	Saint-paul-trois-châteaux, FranceHQ checked Sep 17, 2026	51-200	89 contacts →
	Indirect evidence “GSF Energia est une filiale du groupe GSF l’un des leaders de la propreté et des services associés.” Source: RevenueBase Database · checked Sep 17, 2026
9	Envisol	Indirect evidence	La Tour Du Pin, FranceHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “ENVISOL est une entreprise spécialisée dans le conseil et l’ingénierie offrant des prestations dans le domaine des sites et sols pollués.” Source: RevenueBase Database · checked Sep 17, 2026
10	Curium	Indirect evidence	Montagny, FranceHQ checked Sep 17, 2026	11-50	51 contacts →
	Indirect evidence “Since 1994, CURIUM has been dedicated to the management of environmental risks and of hazardous substances, from technical studies to in situ works.” Source: RevenueBase Database · checked Sep 17, 2026
11	Remea France	Indirect evidence	Nanterre, FranceHQ checked Sep 17, 2026	11-50	46 contacts →
	Indirect evidence “Depuis plus de 20 ans, Remea agit en faveur de l'environnement et pour ses clients en redonnant un avenir aux sites pollués.” Source: RevenueBase Database · checked Sep 17, 2026
12	Groupe MP	Indirect evidence	Gemenos, FranceHQ checked Sep 17, 2026	201-500	46 contacts →
	Indirect evidence “Groupe MP : solutions globales et expertes de décontamination de sites et de bâtiments.” Source: RevenueBase Database · checked Sep 17, 2026
13	SET Environnement	Indirect evidence	Wissous, FranceHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “SET Environnement, filiale du groupe Ixio, leader de la dépollution complexe depuis 1986, met son expertise au service de la protection du public et de ses salariés.” Source: RevenueBase Database · checked Sep 17, 2026
14	NJE	Indirect evidence	Cleppe, FranceHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “PEINTURE, METALLISATION, REVÊTEMENTS TECHNIQUES DÉSAMIANTAGE ET DECONTAMINATION EN MILIEU INDUSTRIEL ET NUCLÉAIRE ECHAFAUDAGE, CONFINEMENT CALORIFUGE NJE est une entreprise…” Source: RevenueBase Database · checked Sep 17, 2026
15	Nucadvisor	Partial evidence	Puteaux, FranceHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “NucAdvisor is a nuclear consulting company established in France by a group of senior executives and high-level experts from across the European nuclear industry.” Source: RevenueBase Database · checked Sep 17, 2026
16	Aergon	Partial evidence	Issy-les-moulineaux, FranceHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “Aergon is an engineering company that provides a range of nuclear industry services, in the following fields - Safety of nuclear facilities and environmental impact - Safety for…” Source: RevenueBase Database · checked Sep 17, 2026
17	Sodeka	Indirect evidence	Amiens, FranceHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Sodeka, votre Partenaire de Référence pour vos projets depuis 1996!” Source: RevenueBase Database · checked Sep 17, 2026
18	Sobaten	Indirect evidence	Ivry Sur Seine, FranceHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Créée en 1992, Sobaten est une société experte de la dépollution, filiale du groupe Ixio, à l'origine de nombreux travaux de recherche sur la protection des salariés et de…” Source: RevenueBase Database · checked Sep 17, 2026
19	Loryon	Indirect evidence	Olivet, FranceHQ checked Sep 17, 2026	1-10	14 contacts →
	Indirect evidence “Loryon SARL porte l'innovation dans la gestion du risque radioactif des centres de recherche, des hôpitaux et des industries.” Source: RevenueBase Database · checked Sep 17, 2026
20	Advise Énergie	Indirect evidence	Pierrelatte, FranceHQ checked Sep 17, 2026	51-200	10 contacts →
	Indirect evidence “ADVISE ENERGIE a été créé en 2018 par 2 associés d’une expérience de plus de 20 ans sur les différentes opérations de maintenance nucléaire (maintenance spécialisée, modification…” Source: RevenueBase Database · checked Sep 17, 2026
21	Fibra Désamiantage Professionnel	Indirect evidence	Martigues, FranceHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “En tant que spécialistes du désamiantage, nous intervenons sur tous types de bâtiments industriels, nucléaires et tertiaires.” Source: RevenueBase Database · checked Sep 17, 2026
22	Arvi Travaux	Indirect evidence	Meyreuil, FranceHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “ARVI Travaux est une société spécialisée dans le traitement de l'amiante, certifiée auprès de l'AFNOR.” Source: RevenueBase Database · checked Sep 17, 2026
23	Remsol Environnement	Indirect evidence	Templemars, FranceHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “VOTRE PARTENAIRE DE CONFIANCE POUR DEPOLLUER VOS SITES ET SOLS QUI SOMMES-NOUS?” Source: RevenueBase Database · checked Sep 17, 2026
24	Navaleo	Indirect evidence	Guipavas, FranceHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “NAVALEO, marque du Groupe Recycleurs Bretons, met à la disposition de ses clients un savoir-faire unanimement reconnu en matière de déconstruction navale et industrielle, de…” Source: RevenueBase Database · checked Sep 17, 2026
25	Demboost	Indirect evidence	Saint Denis, FranceHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “DEMBOOST is an innovative company created in 2019 by former engineers from the French Alternative Energies and Atomic Energy Commission (CEA) who were convinced that it was…” Source: RevenueBase Database · checked Sep 17, 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: nuclear remediation contractors. 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 nuclear remediation contractors.
Partial evidence: Its own public description names part of nuclear remediation contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nuclear remediation contractors. 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 82 nuclear remediation contractors based in France

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Nuclear remediation contractors based in France at a glance

As of Sep 17, 2026

35.7%Verified-email coverage

109.9Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Lyon

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 82 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 nuclear remediation contractors, 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 “nuclear remediation contractors”. 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 nuclear remediation contractors), 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 nuclear remediation contractors, 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, 3,215 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 17, 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 nuclear remediation contractors, 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 nuclear remediation contractors are there based in France?

RevenueBase identified 82 nuclear remediation contractors 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?

Orano DS, headquartered in Massy, tops this list with the largest team on record.

Which city has the most nuclear remediation contractors?

Lyon leads with 3 headquartered companies, followed by Pierrelatte (3) and Chaponost (2).

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 3,215 verified decision-maker contacts tracked across these 82 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 17, 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.