Company lists · Data refreshed September 2026
Top 25 Nuclear decommissioning companies worldwide
RevenueBase identified 214 nuclear decommissioning companies worldwide as of September 2026 and tracks 25,129 professional contacts across them, including 5,600 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers nuclear decommissioning companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 2026. Country and city lists for nuclear decommissioning companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 nuclear decommissioning companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,684 contacts → | ||||
Indirect evidence “Orano DS fait partie du Groupe Orano, le fournisseur de référence du cycle du combustible nucléaire.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,664 contacts → | ||||
Strong evidence “Onet Technologies has 40 years of experience in the nuclear industry, with a strong expertise in engineering and services for reactor maintenance; dismantling, decommissioning and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,592 contacts → | ||||
Partial evidence “Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,537 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,254 contacts → | ||||
Partial evidence “EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,079 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 558 contacts → | ||||
Indirect evidence “We are now Orano!” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 440 contacts → | ||||
Strong evidence “As a European pioneer, Cyclife group offers integrated servicing in nuclear decommissioning and dismantling radioactive waste management.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 297 contacts → | ||||
Partial evidence “We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 284 contacts → | ||||
Partial evidence “Veolia’s Nuclear Expertise: As part of the global Veolia Group, we deliver integrated nuclear solutions that combine cutting-edge technology, engineering excellence, and decades…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 235 contacts → | ||||
Indirect evidence “Seit fünf Jahhrzehnten bietet GNS Gesellschaft für Nuklear-Service mbH zuverlässige und effiziente Lösungen zur nuklearen Entsorgung während Betrieb, und Rückbau von…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 234 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 233 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 211 contacts → | ||||
Partial evidence “Partner for the nuclear industry Bilfinger has successfully supported and advised customers from the nuclear industry for decades.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 208 contacts → | ||||
Indirect evidence “Wir sind PreussenElektra, ein Teil des E.ON-Konzerns, und verantworten den Rückbau von acht Kernkraftwerken in Deutschland.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 181 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 162 contacts → | ||||
Partial evidence “Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 129 contacts → | ||||
Partial evidence “Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 contacts → | ||||
Indirect evidence “Founded in New Mexico in 1975, Los Alamos Technical Associates provides technical and project management services to a varied clientèle including federal agencies, state…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 119 contacts → | ||||
Partial evidence “Brown and Mason are Europe's premier Industrial Demolition, Dismantling and Decommissioning contractor.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 116 contacts → | ||||
Partial evidence “NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 100 contacts → | ||||
Indirect evidence “Die Kerntechnische Entsorgung Karlsruhe GmbH, kurz KTE, baut im Auftrag der öffentlichen Hand die stillgelegten technischen Versuchs und Prototypanlagen am KIT Campus Nord zurück.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 70 contacts → | ||||
Strong evidence “Urenco Nuclear Stewardship brings unrivalled innovation and expertise to nuclear decommissioning and materials recycling & management, for a safe sustainable and circular nuclear…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 65 contacts → | ||||
Indirect evidence “TerranearPMC (TPMC) is an experienced and highly qualified business at the forefront of the environmental service solutions industry with a focus on innovative technologies and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 64 contacts → | ||||
Strong evidence “Our primary business areas include management of radioactive and hazardous waste, decommissioning of nuclear facilities as well as engineering and consulting services.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: nuclear decommissioning companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names nuclear decommissioning companies.
- Partial evidence
- Its own public description names part of nuclear decommissioning companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nuclear decommissioning companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 214 nuclear decommissioning companies worldwide
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Nuclear decommissioning companies worldwide at a glance
As of Sep 15, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among nuclear decommissioning companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 4 countries, largest first: the United States, the United Kingdom, France, Germany. Country and city lists for nuclear decommissioning companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “nuclear decommissioning companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names nuclear decommissioning companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among nuclear decommissioning companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 5,600 across the full list. 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 15, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Nuclear decommissioning companies by location
4 lists · largest firstEvery Nuclear decommissioning 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 Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names nuclear decommissioning companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many nuclear decommissioning companies are there worldwide?
RevenueBase identified 214 nuclear decommissioning companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Orano DS, headquartered in Massy, tops this list with the largest team on record.
Which country has the most nuclear decommissioning companies?
The United States leads with 80 companies, followed by the United Kingdom (63) and France (37). Every nuclear decommissioning companies list by country and city is linked on this page.
Which city has the most nuclear decommissioning companies?
London leads with 5 headquartered companies, followed by Lyon (5) and Oak Ridge (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,600 verified decision-maker contacts tracked across these 214 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 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 Smart Search, 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.
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Company intelligence · public preview
Top 25 nuclear decommissioning companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 214 matching company records for nuclear decommissioning companies worldwide, with 25,129 tracked contacts and 5,600 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: September 15, 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 nuclear decommissioning companies 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 |  Orano DSorano.groupHQ: Massy, FranceReported employees: 5,001-10,000 | Massy, France | 5,001-10,000 | Exact match | 1,684 contacts → |
“Orano DS fait partie du Groupe Orano, le fournisseur de référence du cycle du combustible nucléaire.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Onet Technologiesonet.frHQ: Marseille, FranceReported employees: 1,001-5,000 | Marseille, France | 1,001-5,000 | Exact match | 1,664 contacts → |
“Onet Technologies has 40 years of experience in the nuclear industry, with a strong expertise in engineering and services for reactor maintenance; dismantling, decommissioning and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cavendish Nuclearcavendishnuclear.comHQ: Birchwood, United KingdomReported employees: 5,001-10,000 | Birchwood, United Kingdom | 5,001-10,000 | Exact match | 1,592 contacts → |
“Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  NUVIAnuvia.comHQ: Rueil Malmaison, FranceReported employees: 1,001-5,000 | Rueil Malmaison, France | 1,001-5,000 | Exact match | 1,537 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 | 1,254 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 · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Spie Nucléairespie.comHQ: Cergy-pontoise Cedex, FranceReported employees: 1,001-5,000 | Cergy-pontoise Cedex, France | 1,001-5,000 | Exact match | 1,079 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  AREVAareva.comHQ: Paris La Defense, FranceReported employees: 10001+ | Paris La Defense, France | 10001+ | Exact match | 558 contacts → |
“We are now Orano!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cyclifecyclife-edf.comHQ: Paris La Défense Cedex, FranceReported employees: 1,001-5,000 | Paris La Défense Cedex, France | 1,001-5,000 | Exact match | 440 contacts → |
“As a European pioneer, Cyclife group offers integrated servicing in nuclear decommissioning and dismantling radioactive waste management.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  NSG Environmental LTDnsgltd.comHQ: Chorley, United KingdomReported employees: 501-1,000 | Chorley, United Kingdom | 501-1,000 | Exact match | 297 contacts → |
“We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Veolia Nuclear Solutionsnuclearsolutions.veolia.comHQ: Abingdon, United KingdomReported employees: 501-1,000 | Abingdon, United Kingdom | 501-1,000 | Exact match | 284 contacts → |
“Veolia’s Nuclear Expertise: As part of the global Veolia Group, we deliver integrated nuclear solutions that combine cutting-edge technology, engineering excellence, and decades…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Essen, GermanyReported employees: 501-1,000 | Essen, Germany | 501-1,000 | Exact match | 235 contacts → |
“Seit fünf Jahhrzehnten bietet GNS Gesellschaft für Nuklear-Service mbH zuverlässige und effiziente Lösungen zur nuklearen Entsorgung während Betrieb, und Rückbau von…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Paragon Energy Solutionsparagones.comHQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 234 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Perma-Fix Environmental Services, INCperma-fix.comHQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 233 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Bilfinger Nuclearbilfinger.comHQ: Montrouge, FranceReported employees: 1,001-5,000 | Montrouge, France | 1,001-5,000 | Exact match | 211 contacts → |
“Partner for the nuclear industry Bilfinger has successfully supported and advised customers from the nuclear industry for decades.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Preussenelektrapreussenelektra.deHQ: Hannover, GermanyReported employees: 1,001-5,000 | Hannover, Germany | 1,001-5,000 | Exact match | 208 contacts → |
“Wir sind PreussenElektra, ein Teil des E.ON-Konzerns, und verantworten den Rückbau von acht Kernkraftwerken in Deutschland.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Framatome UKframatome.comHQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 181 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Spectra Tech, INCspectratechinc.comHQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 162 contacts → |
“Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  HI Tech Solutionshtsnuclear.comHQ: Kennewick, WA, United StatesReported employees: 501-1,000 | Kennewick, WA, United States | 501-1,000 | Exact match | 129 contacts → |
“Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  LATAlata.comHQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 120 contacts → |
“Founded in New Mexico in 1975, Los Alamos Technical Associates provides technical and project management services to a varied clientèle including federal agencies, state…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Brown And Mason Group Limitedjustgiving.comHQ: Dartford, United KingdomReported employees: 201-500 | Dartford, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Brown and Mason are Europe's premier Industrial Demolition, Dismantling and Decommissioning contractor.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  NAC Internationalnacintl.comHQ: Peachtree Corners, GA, United StatesReported employees: 51-200 | Peachtree Corners, GA, United States | 51-200 | Exact match | 116 contacts → |
“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  KTE Kerntechnische Entsorgung Karlsruhekte-karlsruhe.deHQ: Eggenstein-leopoldshafen, GermanyReported employees: 501-1,000 | Eggenstein-leopoldshafen, Germany | 501-1,000 | Exact match | 100 contacts → |
“Die Kerntechnische Entsorgung Karlsruhe GmbH, kurz KTE, baut im Auftrag der öffentlichen Hand die stillgelegten technischen Versuchs und Prototypanlagen am KIT Campus Nord zurück.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Urenco Nuclear Stewardship - UNSurenco.comHQ: Cheshire, United KingdomReported employees: 51-200 | Cheshire, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Urenco Nuclear Stewardship brings unrivalled innovation and expertise to nuclear decommissioning and materials recycling & management, for a safe sustainable and circular nuclear…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Terranearpmcterranearpmc.comHQ: Exton, PA, United StatesReported employees: 51-200 | Exton, PA, United States | 51-200 | Exact match | 65 contacts → |
“TerranearPMC (TPMC) is an experienced and highly qualified business at the forefront of the environmental service solutions industry with a focus on innovative technologies and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Nukem Technologies Engineering Services Gmbhnukemtechnologies.deHQ: Karlstein Am Main, GermanyReported employees: 51-200 | Karlstein Am Main, Germany | 51-200 | Exact match | 64 contacts → |
“Our primary business areas include management of radioactive and hazardous waste, decommissioning of nuclear facilities as well as engineering and consulting services.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 214 company matches
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Nuclear decommissioning companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
212 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 15, 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 ↗
Nuclear decommissioning companies by location
4 lists · largest firstEvery Nuclear decommissioning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for nuclear decommissioning companies?
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 nuclear decommissioning companies did RevenueBase find worldwide?
The saved snapshot records 214 matching company records, 25,129 tracked contacts and 5,600 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: September 15, 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.
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Cite this list
RevenueBase Data Team. Top 25 nuclear decommissioning companies worldwide. Snapshot: September 15, 2026. https://revenuebase.ai/companies/browse/nuclear-decommissioning-companies.
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 nuclear decommissioning companies worldwide
RevenueBase records 214 matching company records for nuclear decommissioning companies worldwide, with 25,129 tracked contacts and 5,600 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: September 15, 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 nuclear decommissioning companies 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 | Orano DSorano.group HQ: Massy, FranceReported employees: 5,001-10,000 | Massy, France | 5,001-10,000 | Exact match | 1,684 contacts → |
“Orano DS fait partie du Groupe Orano, le fournisseur de référence du cycle du combustible nucléaire.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Onet Technologiesonet.fr HQ: Marseille, FranceReported employees: 1,001-5,000 | Marseille, France | 1,001-5,000 | Exact match | 1,664 contacts → |
“Onet Technologies has 40 years of experience in the nuclear industry, with a strong expertise in engineering and services for reactor maintenance; dismantling, decommissioning and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cavendish Nuclearcavendishnuclear.com HQ: Birchwood, United KingdomReported employees: 5,001-10,000 | Birchwood, United Kingdom | 5,001-10,000 | Exact match | 1,592 contacts → |
“Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | NUVIAnuvia.com HQ: Rueil Malmaison, FranceReported employees: 1,001-5,000 | Rueil Malmaison, France | 1,001-5,000 | Exact match | 1,537 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 | 1,254 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 · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Spie Nucléairespie.com HQ: Cergy-pontoise Cedex, FranceReported employees: 1,001-5,000 | Cergy-pontoise Cedex, France | 1,001-5,000 | Exact match | 1,079 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | AREVAareva.com HQ: Paris La Defense, FranceReported employees: 10001+ | Paris La Defense, France | 10001+ | Exact match | 558 contacts → |
“We are now Orano!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cyclifecyclife-edf.com HQ: Paris La Défense Cedex, FranceReported employees: 1,001-5,000 | Paris La Défense Cedex, France | 1,001-5,000 | Exact match | 440 contacts → |
“As a European pioneer, Cyclife group offers integrated servicing in nuclear decommissioning and dismantling radioactive waste management.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | NSG Environmental LTDnsgltd.com HQ: Chorley, United KingdomReported employees: 501-1,000 | Chorley, United Kingdom | 501-1,000 | Exact match | 297 contacts → |
“We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Veolia Nuclear Solutionsnuclearsolutions.veolia.com HQ: Abingdon, United KingdomReported employees: 501-1,000 | Abingdon, United Kingdom | 501-1,000 | Exact match | 284 contacts → |
“Veolia’s Nuclear Expertise: As part of the global Veolia Group, we deliver integrated nuclear solutions that combine cutting-edge technology, engineering excellence, and decades…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Essen, GermanyReported employees: 501-1,000 | Essen, Germany | 501-1,000 | Exact match | 235 contacts → |
“Seit fünf Jahhrzehnten bietet GNS Gesellschaft für Nuklear-Service mbH zuverlässige und effiziente Lösungen zur nuklearen Entsorgung während Betrieb, und Rückbau von…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Paragon Energy Solutionsparagones.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 234 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Perma-Fix Environmental Services, INCperma-fix.com HQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 233 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Bilfinger Nuclearbilfinger.com HQ: Montrouge, FranceReported employees: 1,001-5,000 | Montrouge, France | 1,001-5,000 | Exact match | 211 contacts → |
“Partner for the nuclear industry Bilfinger has successfully supported and advised customers from the nuclear industry for decades.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Preussenelektrapreussenelektra.de HQ: Hannover, GermanyReported employees: 1,001-5,000 | Hannover, Germany | 1,001-5,000 | Exact match | 208 contacts → |
“Wir sind PreussenElektra, ein Teil des E.ON-Konzerns, und verantworten den Rückbau von acht Kernkraftwerken in Deutschland.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Framatome UKframatome.com HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 181 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Spectra Tech, INCspectratechinc.com HQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 162 contacts → |
“Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HI Tech Solutionshtsnuclear.com HQ: Kennewick, WA, United StatesReported employees: 501-1,000 | Kennewick, WA, United States | 501-1,000 | Exact match | 129 contacts → |
“Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | LATAlata.com HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 120 contacts → |
“Founded in New Mexico in 1975, Los Alamos Technical Associates provides technical and project management services to a varied clientèle including federal agencies, state…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Brown And Mason Group Limitedjustgiving.com HQ: Dartford, United KingdomReported employees: 201-500 | Dartford, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Brown and Mason are Europe's premier Industrial Demolition, Dismantling and Decommissioning contractor.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | NAC Internationalnacintl.com HQ: Peachtree Corners, GA, United StatesReported employees: 51-200 | Peachtree Corners, GA, United States | 51-200 | Exact match | 116 contacts → |
“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | KTE Kerntechnische Entsorgung Karlsruhekte-karlsruhe.de HQ: Eggenstein-leopoldshafen, GermanyReported employees: 501-1,000 | Eggenstein-leopoldshafen, Germany | 501-1,000 | Exact match | 100 contacts → |
“Die Kerntechnische Entsorgung Karlsruhe GmbH, kurz KTE, baut im Auftrag der öffentlichen Hand die stillgelegten technischen Versuchs und Prototypanlagen am KIT Campus Nord zurück.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Urenco Nuclear Stewardship - UNSurenco.com HQ: Cheshire, United KingdomReported employees: 51-200 | Cheshire, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Urenco Nuclear Stewardship brings unrivalled innovation and expertise to nuclear decommissioning and materials recycling & management, for a safe sustainable and circular nuclear…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Terranearpmcterranearpmc.com HQ: Exton, PA, United StatesReported employees: 51-200 | Exton, PA, United States | 51-200 | Exact match | 65 contacts → |
“TerranearPMC (TPMC) is an experienced and highly qualified business at the forefront of the environmental service solutions industry with a focus on innovative technologies and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Nukem Technologies Engineering Services Gmbhnukemtechnologies.de HQ: Karlstein Am Main, GermanyReported employees: 51-200 | Karlstein Am Main, Germany | 51-200 | Exact match | 64 contacts → |
“Our primary business areas include management of radioactive and hazardous waste, decommissioning of nuclear facilities as well as engineering and consulting services.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 214 company matches
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Nuclear decommissioning companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
212 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 15, 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 ↗
Nuclear decommissioning companies by location
4 lists · largest firstEvery Nuclear decommissioning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for nuclear decommissioning companies?
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 nuclear decommissioning companies did RevenueBase find worldwide?
The saved snapshot records 214 matching company records, 25,129 tracked contacts and 5,600 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: September 15, 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.
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Cite this list
RevenueBase Data Team. Top 25 nuclear decommissioning companies worldwide. Snapshot: September 15, 2026. https://revenuebase.ai/companies/browse/nuclear-decommissioning-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗