Company lists · Data refreshed November 2026
Top 25 Reactor manufacturers worldwide
RevenueBase identified 1,304 company matches for reactor manufacturers worldwide as of November 2026 and tracks 83,325 professional contacts across them, including 19,380 with verified work emails. India is the largest market and Mumbai the largest hub.
This list covers company matches for reactor manufacturers 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 reactor manufacturers 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.
The 25 largest reactor manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 11,794 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 | |||||
| 3 | 4,060 contacts → | ||||
Exact match “At BWX Technologies, Inc.(NYSE: BWXT), we are People Strong, Innovation Driven.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 1,864 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 | |||||
| 5 | 1,440 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 | |||||
| 6 | 1,285 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 | |||||
| 7 | 1,242 contacts → | ||||
Exact match “At X-energy, we design and deploy transformative technology to fuel the future of humanity, leveraging decades of expertise in high-temperature gas-cooled reactor and TRISO fuel…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 1,227 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 | |||||
| 9 | 1,205 contacts → | ||||
Exact match “Climate change and its consequences are one of the greatest challenges ever to face mankind.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 1,093 contacts → | ||||
Exact match “Our Canadian-made, CANDU® reactors supply approximately 50% of Ontario’s electricity and 16% of Canada’s overall electricity requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 788 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 633 contacts → | ||||
Exact match “newcleo is an innovative nuclear technology company developing advanced modular reactors and nuclear fuel designed to deliver clean, safe and sustainable energy at competitive…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 632 contacts → | ||||
Exact match “Transformer & Rectifier (India) Limited (TARIL) is one of India’s leading transformer manufacturers, with over four decades of engineering excellence and a strong global presence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 603 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 | |||||
| 15 | 575 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 569 contacts → | ||||
Exact match “TemaIndia Pvt Ltd is a leading manufacturer of Process Equipment, catering to industries like Oil & Gas, Chemicals, Nuclear, Power & New Energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 543 contacts → | ||||
Exact match “NuScale has designed a new kind of nuclear power plant that is smarter, safer, cleaner, and more cost competitive than the large gigawatt nuclear power plants of the past.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 515 contacts → | ||||
Exact match “Kairos Power has a mission to enable the world’s clean energy transition to improve people’s quality of life while protecting the environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 469 contacts → | ||||
Exact match “A CBC projeta e produz uma extensa linha de equipamentos pesados em que se destacam: trocadores de calor; reatores de processo; torres e colunas de processo; vasos de pressão e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 417 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 391 contacts → | ||||
Exact match “The Anup Engineering Limited,(erstwhile subsidiary company of Arvind Limited) and a part of the Indian conglomerate- Lalbhai Group, is a in the fabrication of top end process…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 378 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 365 contacts → | ||||
Exact match “BACHILLER is an industrial engineering company specialized in the design and construction of process equipment and pressure vessels for the chemical, petrochemical, fine chemical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 363 contacts → | ||||
Exact match “Headquartered in Janesville, Wisconsin, SHINE is an industry leader in next-generation fusion, developing innovative fusion-based technology that combines safety, cost-efficiency…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 334 contacts → | ||||
Exact match “Oklo's mission is to provide clean, reliable, affordable energy through the deployment of next-generation fast fission technology and recycling nuclear waste.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “reactor manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,304 reactor manufacturers worldwide
See the full list, filter by size, metro and specialty, and access 19,380 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Reactor manufacturers worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 reactor manufacturers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “reactor manufacturers” 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 19,380 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.
Reactor manufacturers by location
9 lists · largest firstEvery Reactor manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reactor manufacturers based in India249
- Reactor manufacturers based in the United States230
- Reactor manufacturers based in Italy56
- Reactor manufacturers based in France50
- Reactor manufacturers based in the United Kingdom49
- Reactor manufacturers based in Türkiye42
- Reactor manufacturers based in Germany41
- Reactor manufacturers based in Canada30
- Reactor manufacturers based in Spain30
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 “reactor manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many reactor manufacturers are there worldwide?
RevenueBase identified 1,304 company matches for reactor manufacturers 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 reactor manufacturers?
India leads with 249 companies, followed by the United States (230) and Italy (56). Every reactor manufacturers list by country and city is linked on this page.
Which city has the most reactor manufacturers?
Mumbai leads with 25 company records, followed by Pune (21) and Vadodara (21).
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 19,380 professional contacts with verified work emails tracked across these 1,304 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.
Ready to reach these companies? Verified emails and direct dials for all 1,304 reactor manufacturers worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 reactor manufacturers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,304 matching company records for reactor manufacturers worldwide, with 83,325 tracked contacts and 19,380 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 reactor manufacturers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Framatomeframatome.comHQ: Courbevoie, FranceReported employees: 10001+ | Courbevoie, France | 10001+ | Exact match | 13,401 contacts → |
“Framatome is an international leader in nuclear energy recognized for its innovative, digital and value added solutions for the global nuclear fleet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Westinghouse Electric Companywestinghousenuclear.comHQ: Cranberry Township, PA, United StatesReported employees: 5,001-10,000 | Cranberry Township, PA, United States | 5,001-10,000 | Exact match | 11,794 contacts → |
“Westinghouse Electric Company is the world's leading supplier of safe and innovative nuclear technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  BWXTbwxt.comHQ: Lynchburg, VA, United StatesReported employees: 5,001-10,000 | Lynchburg, VA, United States | 5,001-10,000 | Exact match | 4,060 contacts → |
“At BWX Technologies, Inc.(NYSE: BWXT), we are People Strong, Innovation Driven.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Edvanceedvance.frHQ: Montrouge, FranceReported employees: 1,001-5,000 | Montrouge, France | 1,001-5,000 | Exact match | 1,864 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Nucleoeléctrica Argentina S.Anucleoelectrica.com.arHQ: Villa Martelli, ArgentinaReported employees: 5,001-10,000 | Villa Martelli, Argentina | 5,001-10,000 | Exact match | 1,440 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Energysolutionsenergysolutions.comHQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 1,285 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  X-Energyx-energy.comHQ: Rockville, MD, United StatesReported employees: 501-1,000 | Rockville, MD, United States | 501-1,000 | Exact match | 1,242 contacts → |
“At X-energy, we design and deploy transformative technology to fuel the future of humanity, leveraging decades of expertise in high-temperature gas-cooled reactor and TRISO fuel…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Holtec Internationalholtecinternational.comHQ: Jupiter, FL, United StatesReported employees: 501-1,000 | Jupiter, FL, United States | 501-1,000 | Exact match | 1,227 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Rolls-Royce SMRrolls-royce-smr.comHQ: Derby, United KingdomReported employees: 501-1,000 | Derby, United Kingdom | 501-1,000 | Exact match | 1,205 contacts → |
“Climate change and its consequences are one of the greatest challenges ever to face mankind.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Candu Energy INCatkinsrealis.comHQ: Mississauga, ON, CanadaReported employees: 1,001-5,000 | Mississauga, ON, Canada | 1,001-5,000 | Exact match | 1,093 contacts → |
“Our Canadian-made, CANDU® reactors supply approximately 50% of Ontario’s electricity and 16% of Canada’s overall electricity requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Centrus Energy Corpcentrusenergy.comHQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 788 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Newcleonewcleo.comHQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 633 contacts → |
“newcleo is an innovative nuclear technology company developing advanced modular reactors and nuclear fuel designed to deliver clean, safe and sustainable energy at competitive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Transformers & Rectifiers India LTDtransformerindia.comHQ: Ahmedabad, IndiaReported employees: 1,001-5,000 | Ahmedabad, India | 1,001-5,000 | Exact match | 632 contacts → |
“Transformer & Rectifier (India) Limited (TARIL) is one of India’s leading transformer manufacturers, with over four decades of engineering excellence and a strong global presence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Kepco E&ckepco-enc.comHQ: Port Elgin, CanadaReported employees: 1,001-5,000 | Port Elgin, Canada | 1,001-5,000 | Exact match | 603 contacts → |
“KEPCO E&C was founded in 1975 with the objective of obtaining core technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Urenco Globalurenco.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 575 contacts → |
“Urenco is an international supplier of enrichment services and fuel cycle products with sustainability at the core of its business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tema India PVT LTDtemaindia.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 569 contacts → |
“TemaIndia Pvt Ltd is a leading manufacturer of Process Equipment, catering to industries like Oil & Gas, Chemicals, Nuclear, Power & New Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Nuscale Powernuscalepower.comHQ: Corvallis, WA, United StatesReported employees: 201-500 | Corvallis, WA, United States | 201-500 | Exact match | 543 contacts → |
“NuScale has designed a new kind of nuclear power plant that is smarter, safer, cleaner, and more cost competitive than the large gigawatt nuclear power plants of the past.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Kairos Powerkairospower.comHQ: Alameda, CA, United StatesReported employees: 501-1,000 | Alameda, CA, United States | 501-1,000 | Exact match | 515 contacts → |
“Kairos Power has a mission to enable the world’s clean energy transition to improve people’s quality of life while protecting the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  CBC Indústrias Pesadas S.Acbcsa.com.brHQ: Jundiaí, BrazilReported employees: 501-1,000 | Jundiaí, Brazil | 501-1,000 | Exact match | 469 contacts → |
“A CBC projeta e produz uma extensa linha de equipamentos pesados em que se destacam: trocadores de calor; reatores de processo; torres e colunas de processo; vasos de pressão e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Husinec-řež, Czech RepublicReported employees: 501-1,000 | Husinec-řež, Czech Republic | 501-1,000 | Exact match | 417 contacts → |
“The joint stock company ÚJV Řež is building on the six decades of experience of its predecessor – the Nuclear Research Institute (NRI).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  The Anup Engineering Limitedanupengg.comHQ: Ahmedabad, IndiaReported employees: 201-500 | Ahmedabad, India | 201-500 | Exact match | 391 contacts → |
“The Anup Engineering Limited,(erstwhile subsidiary company of Arvind Limited) and a part of the Indian conglomerate- Lalbhai Group, is a in the fabrication of top end process…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 378 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Bachillerbachiller.comHQ: Parets Del Vallès, SpainReported employees: 51-200 | Parets Del Vallès, Spain | 51-200 | Exact match | 365 contacts → |
“BACHILLER is an industrial engineering company specialized in the design and construction of process equipment and pressure vessels for the chemical, petrochemical, fine chemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Shine Technologiesshinefusion.comHQ: Janesville, WI, United StatesReported employees: 201-500 | Janesville, WI, United States | 201-500 | Exact match | 363 contacts → |
“Headquartered in Janesville, Wisconsin, SHINE is an industry leader in next-generation fusion, developing innovative fusion-based technology that combines safety, cost-efficiency…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Oklo INCoklo.comHQ: Santa Clara, United StatesReported employees: 51-200 | Santa Clara, United States | 51-200 | Exact match | 334 contacts → |
“Oklo's mission is to provide clean, reliable, affordable energy through the deployment of next-generation fast fission technology and recycling nuclear waste.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,304 company matches
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Reactor manufacturers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,293 records in the displayed employee bands.
11 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,304 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Reactor manufacturers by location
9 lists · largest firstEvery Reactor manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reactor manufacturers based in India249
- Reactor manufacturers based in the United States230
- Reactor manufacturers based in Italy56
- Reactor manufacturers based in France50
- Reactor manufacturers based in the United Kingdom49
- Reactor manufacturers based in Türkiye42
- Reactor manufacturers based in Germany41
- Reactor manufacturers based in Canada30
- Reactor manufacturers based in Spain30
Questions about this company list
What does Exact match mean for reactor manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many reactor manufacturers did RevenueBase find worldwide?
The saved snapshot records 1,304 matching company records, 83,325 tracked contacts and 19,380 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 reactor manufacturers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/reactor-manufacturers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 reactor manufacturers worldwide
RevenueBase records 1,304 matching company records for reactor manufacturers worldwide, with 83,325 tracked contacts and 19,380 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 reactor manufacturers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Framatomeframatome.com HQ: Courbevoie, FranceReported employees: 10001+ | Courbevoie, France | 10001+ | Exact match | 13,401 contacts → |
“Framatome is an international leader in nuclear energy recognized for its innovative, digital and value added solutions for the global nuclear fleet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Westinghouse Electric Companywestinghousenuclear.com HQ: Cranberry Township, PA, United StatesReported employees: 5,001-10,000 | Cranberry Township, PA, United States | 5,001-10,000 | Exact match | 11,794 contacts → |
“Westinghouse Electric Company is the world's leading supplier of safe and innovative nuclear technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | BWXTbwxt.com HQ: Lynchburg, VA, United StatesReported employees: 5,001-10,000 | Lynchburg, VA, United States | 5,001-10,000 | Exact match | 4,060 contacts → |
“At BWX Technologies, Inc.(NYSE: BWXT), we are People Strong, Innovation Driven.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Edvanceedvance.fr HQ: Montrouge, FranceReported employees: 1,001-5,000 | Montrouge, France | 1,001-5,000 | Exact match | 1,864 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nucleoeléctrica Argentina S.Anucleoelectrica.com.ar HQ: Villa Martelli, ArgentinaReported employees: 5,001-10,000 | Villa Martelli, Argentina | 5,001-10,000 | Exact match | 1,440 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Energysolutionsenergysolutions.com HQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 1,285 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | X-Energyx-energy.com HQ: Rockville, MD, United StatesReported employees: 501-1,000 | Rockville, MD, United States | 501-1,000 | Exact match | 1,242 contacts → |
“At X-energy, we design and deploy transformative technology to fuel the future of humanity, leveraging decades of expertise in high-temperature gas-cooled reactor and TRISO fuel…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Holtec Internationalholtecinternational.com HQ: Jupiter, FL, United StatesReported employees: 501-1,000 | Jupiter, FL, United States | 501-1,000 | Exact match | 1,227 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rolls-Royce SMRrolls-royce-smr.com HQ: Derby, United KingdomReported employees: 501-1,000 | Derby, United Kingdom | 501-1,000 | Exact match | 1,205 contacts → |
“Climate change and its consequences are one of the greatest challenges ever to face mankind.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Candu Energy INCatkinsrealis.com HQ: Mississauga, ON, CanadaReported employees: 1,001-5,000 | Mississauga, ON, Canada | 1,001-5,000 | Exact match | 1,093 contacts → |
“Our Canadian-made, CANDU® reactors supply approximately 50% of Ontario’s electricity and 16% of Canada’s overall electricity requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Centrus Energy Corpcentrusenergy.com HQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 788 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Newcleonewcleo.com HQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 633 contacts → |
“newcleo is an innovative nuclear technology company developing advanced modular reactors and nuclear fuel designed to deliver clean, safe and sustainable energy at competitive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Transformers & Rectifiers India LTDtransformerindia.com HQ: Ahmedabad, IndiaReported employees: 1,001-5,000 | Ahmedabad, India | 1,001-5,000 | Exact match | 632 contacts → |
“Transformer & Rectifier (India) Limited (TARIL) is one of India’s leading transformer manufacturers, with over four decades of engineering excellence and a strong global presence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Kepco E&ckepco-enc.com HQ: Port Elgin, CanadaReported employees: 1,001-5,000 | Port Elgin, Canada | 1,001-5,000 | Exact match | 603 contacts → |
“KEPCO E&C was founded in 1975 with the objective of obtaining core technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Urenco Globalurenco.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 575 contacts → |
“Urenco is an international supplier of enrichment services and fuel cycle products with sustainability at the core of its business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tema India PVT LTDtemaindia.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 569 contacts → |
“TemaIndia Pvt Ltd is a leading manufacturer of Process Equipment, catering to industries like Oil & Gas, Chemicals, Nuclear, Power & New Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Nuscale Powernuscalepower.com HQ: Corvallis, WA, United StatesReported employees: 201-500 | Corvallis, WA, United States | 201-500 | Exact match | 543 contacts → |
“NuScale has designed a new kind of nuclear power plant that is smarter, safer, cleaner, and more cost competitive than the large gigawatt nuclear power plants of the past.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kairos Powerkairospower.com HQ: Alameda, CA, United StatesReported employees: 501-1,000 | Alameda, CA, United States | 501-1,000 | Exact match | 515 contacts → |
“Kairos Power has a mission to enable the world’s clean energy transition to improve people’s quality of life while protecting the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | CBC Indústrias Pesadas S.Acbcsa.com.br HQ: Jundiaí, BrazilReported employees: 501-1,000 | Jundiaí, Brazil | 501-1,000 | Exact match | 469 contacts → |
“A CBC projeta e produz uma extensa linha de equipamentos pesados em que se destacam: trocadores de calor; reatores de processo; torres e colunas de processo; vasos de pressão e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Husinec-řež, Czech RepublicReported employees: 501-1,000 | Husinec-řež, Czech Republic | 501-1,000 | Exact match | 417 contacts → |
“The joint stock company ÚJV Řež is building on the six decades of experience of its predecessor – the Nuclear Research Institute (NRI).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | The Anup Engineering Limitedanupengg.com HQ: Ahmedabad, IndiaReported employees: 201-500 | Ahmedabad, India | 201-500 | Exact match | 391 contacts → |
“The Anup Engineering Limited,(erstwhile subsidiary company of Arvind Limited) and a part of the Indian conglomerate- Lalbhai Group, is a in the fabrication of top end process…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 378 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Bachillerbachiller.com HQ: Parets Del Vallès, SpainReported employees: 51-200 | Parets Del Vallès, Spain | 51-200 | Exact match | 365 contacts → |
“BACHILLER is an industrial engineering company specialized in the design and construction of process equipment and pressure vessels for the chemical, petrochemical, fine chemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Shine Technologiesshinefusion.com HQ: Janesville, WI, United StatesReported employees: 201-500 | Janesville, WI, United States | 201-500 | Exact match | 363 contacts → |
“Headquartered in Janesville, Wisconsin, SHINE is an industry leader in next-generation fusion, developing innovative fusion-based technology that combines safety, cost-efficiency…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Oklo INCoklo.com HQ: Santa Clara, United StatesReported employees: 51-200 | Santa Clara, United States | 51-200 | Exact match | 334 contacts → |
“Oklo's mission is to provide clean, reliable, affordable energy through the deployment of next-generation fast fission technology and recycling nuclear waste.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Reactor manufacturers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,293 records in the displayed employee bands.
11 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,304 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Reactor manufacturers by location
9 lists · largest firstEvery Reactor manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reactor manufacturers based in India249
- Reactor manufacturers based in the United States230
- Reactor manufacturers based in Italy56
- Reactor manufacturers based in France50
- Reactor manufacturers based in the United Kingdom49
- Reactor manufacturers based in Türkiye42
- Reactor manufacturers based in Germany41
- Reactor manufacturers based in Canada30
- Reactor manufacturers based in Spain30
Questions about this company list
What does Exact match mean for reactor manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many reactor manufacturers did RevenueBase find worldwide?
The saved snapshot records 1,304 matching company records, 83,325 tracked contacts and 19,380 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
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Cite this list
RevenueBase Data Team. Top 25 reactor manufacturers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/reactor-manufacturers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗