Company lists · Data refreshed September 2026
Top 25 Nuclear waste management worldwide
RevenueBase identified 174 nuclear waste management worldwide as of September 2026 and tracks 14,436 professional contacts across them, including 2,792 with verified work emails. The United States is the largest market and Oak Ridge the largest hub.
This list covers nuclear waste management 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 20, 2026. Country and city lists for nuclear waste management 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 waste management worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,664 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 558 contacts → | ||||
Indirect evidence “We are now Orano!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 430 contacts → | ||||
Strong evidence “BGE is a federally owned company tasked with the management and disposal of radioactive waste.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 393 contacts → | ||||
Strong evidence “SKB, Swedish Nuclear Fuel and Waste Management Company, is tasked with managing swedish spent nuclear fuel and other radioactive waste in a safe way.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 270 contacts → | ||||
Strong evidence “The Nuclear Waste Management Organization (NWMO) is a not-for-profit organization tasked with the safe, long-term storage of Canada's intermediate and high level radioactive waste…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 233 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 229 contacts → | ||||
Indirect evidence “Welkom bij Belgoprocess Radioactiviteit speelt een belangrijke rol in de gezondheidszorg en bij industriële en wetenschappelijke toepassingen.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 228 contacts → | ||||
Indirect evidence “En 1984 el Parlamento español creó Enresa como una entidad de carácter público y sin ánimo de lucro, responsable de la gestión de los residuos radiactivos.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 189 contacts → | ||||
Indirect evidence “NIRAS-ONDRAF serves the community.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 138 contacts → | ||||
Partial evidence “WCS offers a comprehensive solution for the treatment, storage and disposal of Class A, B and C low-level radioactive waste, hazardous waste and byproduct materials.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 116 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 95 contacts → | ||||
Partial evidence “Stablex is one of North America's largest and best-known providers of services for the treatment and disposal of hazardous waste.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 64 contacts → | ||||
Indirect evidence “Durch die EWN Entsorgungswerk für Nuklearanlagen GmbH (EWN) werden seit 1995 die ehemaligen Kernkraftwerke Greifswald/Lubmin (KGR) in Mecklenburg-Vorpommern und Rheinsberg (KKR)…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 57 contacts → | ||||
Indirect evidence “COVRA heeft als enig bedrijf in Nederland de taak om al het radioactief afval te verzamelen, verwerken en op te slaan.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 56 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 contacts → | ||||
Partial evidence “Nuclear without compromise - Thorizon is building a new generation of modular reactors to power industry, data centers and energy independence.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 50 contacts → | ||||
Indirect evidence “Die JEN Jülicher Entsorgungsgesellschaft für Nuklearanlagen mbH vereint die gesamte nukleare Kompetenz, die im Forschungszentrum Jülich und der Arbeitsgemeinschaft Versuchsreaktor…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 45 contacts → | ||||
Indirect evidence “Located in Andrews Texas, LOTUS, LLC is a fully licensed off-loading, processing and decontamination operation established to handle Naturally Occurring Radioactive Material…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 35 contacts → | ||||
Partial evidence “Cyclife Aquila Nuclear has now merged with Cyclife UK Ltd to bring together our complementary expertise and strong industry reputations to form a single, unified UK entity.” Source: RevenueBase Database · checked Sep 20, 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 waste management. 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 waste management.
- Partial evidence
- Its own public description names part of nuclear waste management, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nuclear waste management. 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 174 nuclear waste management worldwide
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Nuclear waste management worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 waste management, 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
- Every country. Country and city lists for nuclear waste management are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “nuclear waste management”. 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 waste management), 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 waste management, 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, 2,792 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 20, 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 waste management by location
1 lists · largest firstEvery Nuclear waste management 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 waste management, 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 waste management are there worldwide?
RevenueBase identified 174 nuclear waste management 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?
Onet Technologies, headquartered in Marseille, tops this list with the largest team on record.
Which country has the most nuclear waste management?
The United States leads with 40 companies. Every nuclear waste management list by country and city is linked on this page.
Which city has the most nuclear waste management?
Oak Ridge leads with 4 headquartered companies, followed by Carlsbad (3) and Berlin (2).
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 2,792 verified decision-maker contacts tracked across these 174 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 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.