Company lists · Data refreshed September 2026

Top 25 Nuclear instrumentation and control companies worldwide

RevenueBase identified 557 company matches for nuclear instrumentation and control companies worldwide as of September 2026 and tracks 41,726 professional contacts across them, including 10,662 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for nuclear instrumentation and control 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 September 20, 2026. Country and city lists for nuclear instrumentation and control 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 Sep 20, 2026 How this list was built
557Companies
41,726Contacts tracked
10,662Verified emails
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The 25 largest nuclear instrumentation and control companies worldwide

Ranked by team size
Top 25 of 557 company matches for nuclear instrumentation and control companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 Sep 20, 202610001+12,439 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 · Sep 20, 2026 · View company records in RevenueBase
2Exact matchCranberry Township, PA, United StatesHQ recorded Sep 20, 20265,001-10,00010,898 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchMontrouge, FranceHQ recorded Sep 20, 20261,001-5,0001,780 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 · Sep 20, 2026 · View company records in RevenueBase
4Exact matchPort Elgin, CanadaHQ recorded Sep 20, 20261,001-5,000579 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Sep 20, 2026501-1,000487 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 · Sep 20, 2026 · View company records in RevenueBase
6Exact matchBourg Saint Andéol, FranceHQ recorded Sep 20, 2026501-1,000406 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchColumbia, MD, United StatesHQ recorded Sep 20, 2026201-500404 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 · Sep 20, 2026 · View company records in RevenueBase
8Exact matchMumbai, IndiaHQ recorded Sep 20, 2026501-1,000288 contacts →

Exact match

“SCOPE Group is an engineering-led company for critical power infrastructure.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchEzeiza - Buenos Aires, ArgentinaHQ recorded Sep 20, 2026201-500287 contacts →

Exact match

“SOMOS CONUAR.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchUnited StatesHQ recorded Sep 20, 20261,001-5,000254 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 · Sep 20, 2026 · View company records in RevenueBase
11Exact matchMaliaño, SpainHQ recorded Sep 20, 2026201-500254 contacts →

Exact match

“Fabricación de componentes para la industria nuclear.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchFaenza, ItalyHQ recorded Sep 20, 2026201-500235 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 · Sep 20, 2026 · View company records in RevenueBase
13Exact matchFort Worth, TX, United StatesHQ recorded Sep 20, 2026201-500234 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 · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBolevec, Czech RepublicHQ recorded Sep 20, 20261,001-5,000198 contacts →

Exact match

“ŠKODA JS a.s.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchSwedenHQ recorded Sep 20, 2026501-1,000192 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBagnols Sur Ceze, FranceHQ recorded Sep 20, 2026201-500163 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 · Sep 20, 2026 · View company records in RevenueBase
17Exact matchIndiaHQ recorded Sep 20, 2026501-1,000161 contacts →

Exact match

“In Power Plants, Chemical / Petro Chemical Industries and in the Prestigious Projects of Department of Space and Atomic Energy across the country you will find the CHEMIN TEAM…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBlagnac, FranceHQ recorded Sep 20, 202651-200126 contacts →

Exact match

“ARCYS, as a specialist in safety electronics and instrumentation for harsh environments, provides its expertise to system integrators, public and private operators with a…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchCharlotte, NC, United StatesHQ recorded Sep 20, 202651-200118 contacts →

Exact match

“At Atkins Nuclear Solutions US, we offer client solutions crafted by the best engineers and specialists in the industry, served with truly exceptional customer service.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchDanbury, CT, United StatesHQ recorded Sep 20, 202651-200104 contacts →

Exact match

“Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchTwinsburg, OH, United StatesHQ recorded Sep 20, 202651-200103 contacts →

Exact match

“Reuter-Stokes is an energy technology company that designs and manufactures sensors for power generation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSaint-petersburg, RussiaHQ recorded Sep 20, 20261,001-5,00084 contacts →

Exact match

“ATOMPROEKT is a dynamically growing company that has successfully united the competences of the two leading design institutes of State Corporation Rosatom in a number of fields –…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchTrnava, SlovakiaHQ recorded Sep 20, 2026501-1,00083 contacts →

Exact match

“VUJE, a.s, is an engineering company that performs design, supply, realization, research, and training activities mainly in the field of nuclear and classical power engineering.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSweetwater, TX, United StatesHQ recorded Sep 20, 2026201-50080 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchBremen, WY, GermanyHQ recorded Sep 20, 2026201-50079 contacts →

Exact match

“At Westerman, Inc, we're an employee-owned team building the future of energy infrastructure through precision engineering and quality craftsmanship.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 557 nuclear instrumentation and control companies worldwide

See the full list, filter by size, metro and specialty, and access 10,662 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear instrumentation and control companies worldwide at a glance

As of Sep 20, 2026
25.6%Verified-email coverage
74.9Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Tehran
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
201
11-50
185
51-200
86
201-500
43
501-1,000
16
1,001-5,000
16
5,001-10,000
2
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 instrumentation and control companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear instrumentation and control 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 10,662 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 September 20, 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 instrumentation and control companies by location

4 lists · largest first

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

How many nuclear instrumentation and control companies are there worldwide?

RevenueBase identified 557 company matches for nuclear instrumentation and control companies worldwide as of September 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 instrumentation and control companies?

The United States leads with 111 companies, followed by the United Kingdom (42) and India (40). Every nuclear instrumentation and control companies list by country and city is linked on this page.

Which city has the most nuclear instrumentation and control companies?

Tehran leads with 9 company records, followed by Mumbai (7) and Oak Ridge (6).

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 10,662 professional contacts with verified work emails tracked across these 557 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 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 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.