Company lists · Data refreshed October 2026

Top 23 Nuclear energy research firms based in the United Kingdom

RevenueBase identified 54 company matches for nuclear energy research firms associated with the United Kingdom as of October 2026 and tracks 6,815 professional contacts across them, including 2,392 with verified work emails. London is the largest hub.

This list covers company matches for nuclear energy research firms associated with the United Kingdom, 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 October 18, 2026.

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 Oct 18, 2026 How this list was built
54Companies
6,815Contacts tracked
2,392Verified emails
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The 23 largest nuclear energy research firms based in the United Kingdom

Ranked by team size
Top 23 of 54 company matches for nuclear energy research firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 matchBirchwood, United KingdomHQ recorded Oct 18, 20265,001-10,0001,684 contacts →

Exact match

“Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchWarrington, United KingdomHQ recorded Oct 18, 20261,001-5,000780 contacts →

Exact match

“As the UK’s lead civil national laboratory for nuclear fission, we work closely with Government to drive forward the nation’s nuclear ambitions.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000556 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 · Oct 18, 2026 · View company records in RevenueBase
4Exact matchChorley, United KingdomHQ recorded Oct 18, 2026501-1,000299 contacts →

Exact match

“We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchAbingdon, United KingdomHQ recorded Oct 18, 2026501-1,000292 contacts →

Exact match

“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 in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchBristol, United KingdomHQ recorded Oct 18, 2026201-500206 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchYarnton, United KingdomHQ recorded Oct 18, 202651-20092 contacts →

Exact match

“First Light Fusion Ltd is a lean, focused and agile corporation researching energy generation by inertial fusion energy (IFE).”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchAbingdon, United KingdomHQ recorded Oct 18, 202651-20085 contacts →

Exact match

“Orano transforms nuclear materials so that they can be used to support the development of society, first and foremost in the field of energy.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchWarrington, United KingdomHQ recorded Oct 18, 20261,001-5,00039 contacts →

Exact match

“As the UK’s national laboratory for nuclear fission, NNL is harnessing nuclear science to help solve some of the world’s biggest challenges.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchBristol, United KingdomHQ recorded Oct 18, 202611-5033 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 18, 202651-20027 contacts →

Exact match

“TRX is a leading nuclear recruitment company with a core focus on helping shape and implement a zero-carbon future.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchBristol, United KingdomHQ recorded Oct 18, 202611-5020 contacts →

Exact match

“Established in France over 33 years ago, CERAP Prevention now operates all over the world, employing over 600 people who all work together to support their customers efficiently…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchTwyford, United KingdomHQ recorded Oct 18, 202651-20017 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchShanklin, United KingdomHQ recorded Oct 18, 202611-5015 contacts →

Exact match

“Innovative Physics (IPL) research, design and develop leading edge instrumentation for the radiation monitoring market.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 18, 202611-5015 contacts →

Exact match

“CORE POWER is a UK-based development company, specializing in scalable new nuclear for ocean transport and heavy industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchNorthampton, United KingdomHQ recorded Oct 18, 20261-106 contacts →

Exact match

“Equilibrion is a young, ambitious firm set up for one purpose.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 18, 20261-103 contacts →

Exact match

“WHAT DO WE DO?”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 18, 20261-103 contacts →

Exact match

“Our mission is to empower businesses to thrive in the evolving nuclear energy landscape.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchHarwell, United KingdomHQ recorded Oct 18, 20261-103 contacts →

Exact match

“Woodruff Scientific LTD is based at the Harwell Innovation Centre in Oxfordshire, UK.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchDorchester, United KingdomHQ recorded Oct 18, 20261-103 contacts →

Exact match

“Market Cross UK Limited is a Nuclear Safety and Engineering Consultancy wholly owned by its Members.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchReading, United KingdomHQ recorded Oct 18, 202611-502 contacts →

Exact match

“Founded in 1987, ANTECH is an independent provider of custom equipment, measurement services and technical expertise to the nuclear industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchHullbridge, United KingdomHQ recorded Oct 18, 20261-102 contacts →

Exact match

“Acelocal Ltd.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchGlasgow, United KingdomHQ recorded Oct 18, 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 · Oct 18, 2026 · View company records in RevenueBase

Showing 23 of 54 nuclear energy research firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,392 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear energy research firms based in the United Kingdom at a glance

As of Oct 18, 2026
35.1%Verified-email coverage
126.2Average contacts per company
11-50Median size (employees)
25.9%Largest-city concentration · London
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
14
51-200
5
201-500
4
501-1,000
4
1,001-5,000
5
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 54 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “nuclear energy research firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 2,392 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 October 18, 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.

Frequently asked

What is RevenueBase SmartSearch?

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

How many nuclear energy research firms are there based in the United Kingdom?

RevenueBase identified 54 company matches for nuclear energy research firms associated with the United Kingdom as of October 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?

Cavendish Nuclear tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most nuclear energy research firms?

London leads with 14 company records, followed by Bristol (4) and Abingdon (3).

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 2,392 professional contacts with verified work emails tracked across these 54 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 October 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 54 nuclear energy research firms based in the United Kingdom. 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.