Company lists · Data refreshed November 2026

Top 20 Thorium fuel technology companies worldwide

RevenueBase identified 57 company matches for thorium fuel technology companies worldwide as of November 2026 and tracks 5,019 professional contacts across them, including 901 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for thorium fuel technology companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for thorium fuel technology companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
57Companies
5,019Contacts tracked
901Verified emails
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The 20 largest thorium fuel technology companies worldwide

Ranked by team size
Top 20 of 57 company matches for thorium fuel technology companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRockville, MD, United StatesHQ recorded Nov 6, 2026501-1,0001,242 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
2Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000633 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
3Exact matchAlameda, CA, United StatesHQ recorded Nov 6, 2026501-1,000515 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
4Exact matchSanta Clara, United StatesHQ recorded Nov 6, 202651-200334 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
5Exact matchKastrup, DenmarkHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Copenhagen Atomics pioneers thorium molten salt reactors, a groundbreaking solution that burns nuclear waste to generate abundant and cost-effective green energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“NANO Nuclear Energy Inc.(NASDAQ: NNE) NANO Nuclear Energy Inc.(NASDAQ: NNE) is a North American advanced technology-driven nuclear energy company seeking to become a commercially…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Nuclear without compromise - Thorizon is building a new generation of modular reactors to power industry, data centers and energy independence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAbilene, TX, United StatesHQ recorded Nov 6, 2026n/a42 contacts →

Exact match

“Natura Resources is committed to answering the world's increased demand for reliable energy, medical isotopes, and clean water by developing commercially deployable molten salt…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“We're building fuel processing technology to make fusion power plants robust, practical and widespread.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBristol, United KingdomHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Based in Bristol, UK, Astral Systems was founded in 2021.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchReston, VA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Lightbridge is developing and commercializing next generation nuclear fuel technology that will significantly improve the economics and safety of existing and new reactors, with a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHuntsville, AL, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Flibe Energy is working to design and develop lithium-fluoride nuclear reactors, which will provide clean energy and valuable materials for the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“We are an innovative company that will transform how nuclear fission is used to power our society.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSaint John, CanadaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Moltex Energy is developing a next generation nuclear reactor that can produce clean electricity at a lower cost than fossil fuels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“At Clean Core, we recognize the need for an immediate nuclear innovation to solve the climate and human development challenges of today.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWilmington, DE, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“At Nuclearis, we are pioneering the future of sustainable energy with our innovative nuclear solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMidland, ON, CanadaHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Aureon Energy was established by the SAFIRE research team to transition years of experimental plasma and reactor research into engineered commercial energy and remediation systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Aza Power Systems provides reactor technologies and fuel-handling solutions for OEM and retrofits utilizing anhydrous ammonia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGlasgow, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Our mission is to further advance the development and commercialization of our TRL4* & TRL6* fusion technology prototypes by partnering with clean-energy-focused industrials and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Cortex Fusion Systems is a nuclear energy company built on a single enabling technology.”

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

Showing 20 of 57 thorium fuel technology companies worldwide

See the full list, filter by size, metro and specialty, and access 901 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Thorium fuel technology companies worldwide at a glance

As of Nov 6, 2026
18.0%Verified-email coverage
88.1Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
20
51-200
7
501-1,000
5
1,001-5,000
1

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 thorium fuel technology companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “thorium fuel technology companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 901 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.

Thorium fuel technology companies by location

1 lists · largest first

Every Thorium fuel technology companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “thorium fuel technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thorium fuel technology companies are there worldwide?

RevenueBase identified 57 company matches for thorium fuel technology companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which country has the most thorium fuel technology companies?

The United States leads with 28 companies. Every thorium fuel technology companies list by country and city is linked on this page.

Which city has the most thorium fuel technology companies?

New York leads with 4 company records, followed by Washington (2) and Wilmington (2).

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 901 professional contacts with verified work emails tracked across these 57 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.