Company lists · Data refreshed October 2026

Top 25 Nuclear equipment & accessory suppliers worldwide

RevenueBase identified 293 company matches for nuclear equipment & accessory suppliers worldwide as of October 2026 and tracks 50,792 professional contacts across them, including 12,107 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for nuclear equipment & accessory suppliers worldwide, 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 October 28, 2026. Country and city lists for nuclear equipment & accessory suppliers follow the table.

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 Oct 28, 2026 How this list was built
293Companies
50,792Contacts tracked
12,107Verified emails
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The 25 largest nuclear equipment & accessory suppliers worldwide

Ranked by team size
Top 25 of 293 company matches for nuclear equipment & accessory suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 28, 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 matchCourbevoie, FranceHQ recorded Oct 28, 202610001+12,980 contacts →

Exact match

“Framatome is an international leader in nuclear energy recognized for its innovative, digital and value added solutions for the global nuclear fleet.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
2Exact matchCranberry Township, PA, United StatesHQ recorded Oct 28, 20265,001-10,00011,520 contacts →

Exact match

“Westinghouse Electric Company is the world's leading supplier of safe and innovative nuclear technology.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
3Exact matchLynchburg, VA, United StatesHQ recorded Oct 28, 20265,001-10,0003,987 contacts →

Exact match

“At BWX Technologies, Inc.(NYSE: BWXT), we are People Strong, Innovation Driven.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
4Exact matchMassy, FranceHQ recorded Oct 28, 20265,001-10,0001,743 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 · Oct 28, 2026 · View company records in RevenueBase
5Exact matchRueil Malmaison, FranceHQ recorded Oct 28, 20261,001-5,0001,624 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
6Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 28, 20261,001-5,0001,273 contacts →

Exact match

“EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
7Exact matchCergy-pontoise Cedex, FranceHQ recorded Oct 28, 20261,001-5,0001,101 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 · Oct 28, 2026 · View company records in RevenueBase
8Exact matchBethesda, MD, United StatesHQ recorded Oct 28, 2026201-500771 contacts →

Exact match

“Centrus Energy is a trusted American supplier of nuclear fuel and services for the nuclear power industry, helping meet the growing need for clean, affordable, carbon-free energy.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 28, 20261,001-5,000556 contacts →

Exact match

“Urenco is an international supplier of enrichment services and fuel cycle products with sustainability at the core of its business.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
10Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Oct 28, 2026501-1,000480 contacts →

Exact match

“TECNATOM was set up in 1957 as a Spanish engineering company specialising in guaranteeing the operation and maintenance of nuclear power plants to the highest levels of safety.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
11Exact matchColumbia, MD, United StatesHQ recorded Oct 28, 2026201-500439 contacts →

Exact match

“GSE Solutions supports nuclear power and clean-energy fleets worldwide through integrated engineering services and software that strengthen operational performance.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
12Exact matchBourg Saint Andéol, FranceHQ recorded Oct 28, 2026501-1,000419 contacts →

Exact match

“Installation & Maintenance | Études, Ingénierie & Prestations Intellectuelles.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
13Exact matchHusinec-řež, Czech RepublicHQ recorded Oct 28, 2026501-1,000411 contacts →

Exact match

“The joint stock company ÚJV Řež is building on the six decades of experience of its predecessor – the Nuclear Research Institute (NRI).”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Oct 28, 2026501-1,000364 contacts →

Exact match

“Se ocupa de la primera parte del ciclo de combustible nuclear (diseño, fabricación y abastecimiento de combustible) prestando servicios de ingeniería y combustible a las Centrales…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
15Exact matchEzeiza - Buenos Aires, ArgentinaHQ recorded Oct 28, 2026201-500307 contacts →

Exact match

“SOMOS CONUAR.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
16Exact matchChorley, United KingdomHQ recorded Oct 28, 2026501-1,000299 contacts →

Exact match

“We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
17Exact matchMaliaño, SpainHQ recorded Oct 28, 2026201-500265 contacts →

Exact match

“Fabricación de componentes para la industria nuclear.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
18Exact matchFort Worth, TX, United StatesHQ recorded Oct 28, 2026201-500249 contacts →

Exact match

“Paragon tackles the most difficult challenges of the nuclear industry-those faced by the current operating fleet as well as the next generation of advanced reactors.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
19Exact matchFaenza, ItalyHQ recorded Oct 28, 2026201-500247 contacts →

Exact match

“Since it has been founded in 1985, Tema Sinergie has been dedicated to Design, Production and Service of shielded equipment and measuring instruments for a safe use of radioactive…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
20Exact matchCambridge, ON, CanadaHQ recorded Oct 28, 202651-200240 contacts →

Exact match

“Babcock & Wilcox Canada's Cambridge, Ontario facility was established in 1844 and has grown from a small foundry manufacturing industrial machinery to a world leader in the…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
21Exact matchMontrouge, FranceHQ recorded Oct 28, 20261,001-5,000210 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 · Oct 28, 2026 · View company records in RevenueBase
22Exact matchSwedenHQ recorded Oct 28, 2026501-1,000206 contacts →

Exact match

“Studsvik offers a range of advanced technical services to the global nuclear power industry.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
23Exact matchBolevec, Czech RepublicHQ recorded Oct 28, 20261,001-5,000201 contacts →

Exact match

“ŠKODA JS a.s.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
24Exact matchFranceHQ recorded Oct 28, 20265,001-10,000184 contacts →

Exact match

“Nuclear for naval propulsion and peacefull research.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
25Exact matchHeras, SpainHQ recorded Oct 28, 2026201-500150 contacts →

Exact match

“ENWESA es una empresa de servicios y fabricación especializada en servicios nucleares, revisión y mantenimiento de válvulas industriales, fabricación de depósitos a presión e…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase

Showing 25 of 293 nuclear equipment & accessory suppliers worldwide

See the full list, filter by size, metro and specialty, and access 12,107 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear equipment & accessory suppliers worldwide at a glance

As of Oct 28, 2026
23.8%Verified-email coverage
173.4Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Madrid
Oct 28, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
74
51-200
57
201-500
38
501-1,000
17
1,001-5,000
19
5,001-10,000
5
10001+
5

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for nuclear equipment & accessory suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear equipment & accessory 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. 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 12,107 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 October 28, 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.

Nuclear equipment & accessory suppliers by location

2 lists · largest first

Every Nuclear equipment & accessory suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 equipment & accessory suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear equipment & accessory suppliers are there worldwide?

RevenueBase identified 293 company matches for nuclear equipment & accessory suppliers worldwide as of October 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?

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

Which country has the most nuclear equipment & accessory suppliers?

The United States leads with 87 companies, followed by France (32). Every nuclear equipment & accessory suppliers list by country and city is linked on this page.

Which city has the most nuclear equipment & accessory suppliers?

Madrid leads with 4 company records, followed by Oak Ridge (4) and Golden (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 12,107 professional contacts with verified work emails tracked across these 293 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 October 28, 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.