Company lists · Data refreshed November 2026

Top 15 Nuclear licensee support services based in France

RevenueBase identified 47 company matches for nuclear licensee support services associated with France as of November 2026 and tracks 6,843 professional contacts across them, including 2,621 with verified work emails. Pierrelatte is the largest hub.

This list covers company matches for nuclear licensee support services 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 6, 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 6, 2026 How this list was built
47Companies
6,843Contacts tracked
2,621Verified emails
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The 15 largest nuclear licensee support services based in France

Ranked by team size
Top 15 of 47 company matches for nuclear licensee support services based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMassy, FranceHQ recorded Nov 6, 20265,001-10,0001,786 contacts →

Exact match

“Orano DS fait partie du Groupe Orano, le fournisseur de référence du cycle du combustible nucléaire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMarseille, FranceHQ recorded Nov 6, 20261,001-5,0001,782 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCergy-pontoise Cedex, FranceHQ recorded Nov 6, 20261,001-5,0001,137 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMontrouge, FranceHQ recorded Nov 6, 20261,001-5,000221 contacts →

Exact match

“Partner for the nuclear industry Bilfinger has successfully supported and advised customers from the nuclear industry for decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBagnols Sur Ceze, FranceHQ recorded Nov 6, 2026201-500175 contacts →

Exact match

“Société d’ingénierie, ECIA, une marque d'Equans, est un acteur de la filière nucléaire dans le domaine de la maîtrise des risques.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLyon, FranceHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“TUNZINI Maintenance Nucléaire intervient lors des opérations d’arrêts de tranche pour la réalisation des travaux mécaniques et de manutention de gros composants en bâtiments…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchParis Cedex 12, FranceHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Pour répondre à la demande énergétique croissante dans le monde, setec nucléaire accompagne les acteurs du nucléaire dans le développement de leurs projets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchClamart, FranceHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Crée en KURY Ingénierie est un bureau d'études spécialisé dans la conception et la sûreté nucléaire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPuteaux, FranceHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAix En Provence, FranceHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Le travail en environnement nucléaire exige un strict respect des comportements et des référentiels en vigueur imposés par les donneurs d'ordre.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchIssy-les-moulineaux, FranceHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMeyreuil, FranceHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“SICA Nucléaire est une société d'inspection, de conseil, d'audit et de formation dans le secteur de l'énergie nucléaire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCourtabœuf, FranceHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Créée en 2012, CleanuC SAS est une TPE d’ingénierie spécialisée dans le domaine du nucléaire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGrenoble, FranceHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Présentation : qui somme nous?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPierrelatte, FranceHQ recorded Nov 6, 202651-2006 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 47 nuclear licensee support services based in France

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Nuclear licensee support services based in France at a glance

As of Nov 6, 2026
38.3%Verified-email coverage
145.6Average contacts per company
11-50Median size (employees)
8.5%Largest-city concentration · Pierrelatte
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
9
51-200
5
201-500
4
501-1,000
2
1,001-5,000
5
5,001-10,000
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 47 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 “nuclear licensee support services” 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 2,621 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 6, 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 “nuclear licensee support services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear licensee support services are there based in France?

RevenueBase identified 47 company matches for nuclear licensee support services 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?

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

Which city has the most nuclear licensee support services?

Pierrelatte leads with 4 company records, followed by Lyon (3) and Paris (3).

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 2,621 professional contacts with verified work emails tracked across these 47 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 6, 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.