Company lists · Data refreshed November 2026

Top 25 Nuclear plant control system companies worldwide

RevenueBase identified 487 company matches for nuclear plant control system companies worldwide as of November 2026 and tracks 53,271 professional contacts across them, including 13,603 with verified work emails. The United States is the largest market and Bristol the largest hub.

This list covers company matches for nuclear plant control system companies 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 November 6, 2026. Country and city lists for nuclear plant control system companies 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 Nov 6, 2026 How this list was built
487Companies
53,271Contacts tracked
13,603Verified emails
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The 25 largest nuclear plant control system companies worldwide

Ranked by team size
Top 25 of 487 company matches for nuclear plant control system companies worldwide, 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 matchCourbevoie, FranceHQ recorded Nov 6, 202610001+13,401 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCranberry Township, PA, United StatesHQ recorded Nov 6, 20265,001-10,00011,794 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMontrouge, FranceHQ recorded Nov 6, 20261,001-5,0001,864 contacts →

Exact match

“Edvance, a joint subsidiary of EDF and Framatome, is responsible for the design and implementation (studies, procurement assistance, assembly and commissioning) of nuclear islands…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchVilla Martelli, ArgentinaHQ recorded Nov 6, 20265,001-10,0001,440 contacts →

Exact match

“Nucleoeléctrica Argentina S.A.(NASA) es una empresa generadora de energía eléctrica, operadora de las centrales nucleares argentinas y encargada de la gestión de los proyectos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 6, 20261,001-5,0001,285 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchJupiter, FL, United StatesHQ recorded Nov 6, 2026501-1,0001,227 contacts →

Exact match

“Holtec International is a global turnkey supplier of equipment and services for the Nuclear, Solar, Geothermal, and Fossil Power Generation sectors of the energy and petrochemical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPort Elgin, CanadaHQ recorded Nov 6, 20261,001-5,000603 contacts →

Exact match

“KEPCO E&C was founded in 1975 with the objective of obtaining core technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCourbevoie, FranceHQ recorded Nov 6, 2026501-1,000544 contacts →

Exact match

“Sur les centrales nucléaires du groupe EDF, nous intervenons sur tous les types de bâtiments, à la fois de production et tertiaires.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Nov 6, 2026501-1,000484 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSector 1, RomaniaHQ recorded Nov 6, 20261,001-5,000468 contacts →

Exact match

“Since July 27, 1998 "Nuclearelectrica"- SA is registered with the Register of Commerce, Chamber of Commerce and Industry, as a state owned company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchColumbia, MD, United StatesHQ recorded Nov 6, 2026201-500451 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBourg Saint Andéol, FranceHQ recorded Nov 6, 2026501-1,000449 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchChorley, United KingdomHQ recorded Nov 6, 2026501-1,000307 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,000268 contacts →

Exact match

“CANBERRA, now a part of Mirion Technologies, is a leading provider of innovative and cost-effective nuclear measurement solutions used to maintain safety of personnel, assess the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMaliaño, SpainHQ recorded Nov 6, 2026201-500264 contacts →

Exact match

“Fabricación de componentes para la industria nuclear.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 2026201-500252 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFlorianópolis, QC, BrazilHQ recorded Nov 6, 202651-200247 contacts →

Exact match

“Since 1987, advancing power generation control.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLeibstadt, SwitzerlandHQ recorded Nov 6, 2026201-500235 contacts →

Exact match

“Wir sind ein moderner und regional verwurzelter Arbeitgeber in einem spannenden und anspruchsvollen Umfeld.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBolevec, Czech RepublicHQ recorded Nov 6, 20261,001-5,000230 contacts →

Exact match

“ŠKODA JS a.s.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchSwedenHQ recorded Nov 6, 2026501-1,000211 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCentennial, AK, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Applied Control comes alongside you as a partner who understands your plant, your processes, and the pressure you face to deliver performance without interruption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchPříbram, Czech RepublicHQ recorded Nov 6, 2026201-500160 contacts →

Exact match

“ZAT Company seats in Příbram and Plzeň.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLongmont, CO, United StatesHQ recorded Nov 6, 20261,001-5,000157 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 487 nuclear plant control system companies worldwide

See the full list, filter by size, metro and specialty, and access 13,603 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear plant control system companies worldwide at a glance

As of Nov 6, 2026
25.5%Verified-email coverage
109.4Average contacts per company
11-50Median size (employees)
0.8%Largest-city concentration · Bristol
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
165
11-50
143
51-200
82
201-500
37
501-1,000
14
1,001-5,000
28
5,001-10,000
5
10001+
6

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 plant control system companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear plant control system companies” 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 13,603 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.

Nuclear plant control system companies by location

3 lists · largest first

Every Nuclear plant control system companies 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 plant control system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear plant control system companies are there worldwide?

RevenueBase identified 487 company matches for nuclear plant control system companies worldwide 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?

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

Which country has the most nuclear plant control system companies?

The United States leads with 112 companies, followed by France (33) and the United Kingdom (27). Every nuclear plant control system companies list by country and city is linked on this page.

Which city has the most nuclear plant control system companies?

Bristol leads with 4 company records, followed by Houston (4) and Tehran (4).

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 13,603 professional contacts with verified work emails tracked across these 487 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.