Company lists · Data refreshed October 2026
Top 25 Nuclear services based in the United Kingdom
RevenueBase identified 213 company matches for nuclear services associated with the United Kingdom as of October 2026 and tracks 29,908 professional contacts across them, including 7,036 with verified work emails. London is the largest hub.
This list covers company matches for nuclear services 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 28, 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.
The 25 largest nuclear services based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,147 contacts → | ||||
Exact match “Atkins is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 2 | 1,838 contacts → | ||||
Exact match “Our purpose is to protect the UK through nuclear science and technology, and our mission is to design and manufacture warheads and provide nuclear services to meet the needs of…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 3 | 1,684 contacts → | ||||
Exact match “Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 4 | 780 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 28, 2026 · View company records in RevenueBase | |||||
| 5 | 556 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 28, 2026 · View company records in RevenueBase | |||||
| 6 | 299 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 28, 2026 · View company records in RevenueBase | |||||
| 7 | 292 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 28, 2026 · View company records in RevenueBase | |||||
| 8 | 206 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 9 | 181 contacts → | ||||
Exact match “DBD is an independent global enterprise providing innovative solutions to complex technical, engineering and strategic challenges in highly regulated industries.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 10 | 95 contacts → | ||||
Exact match “InSite Technical Services is the partner you can rely on to support any engineering requirement.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 11 | 85 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 28, 2026 · View company records in RevenueBase | |||||
| 12 | 83 contacts → | ||||
Exact match “We build reliable workforces for the UK's nuclear projects.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 13 | 76 contacts → | ||||
Exact match “Providing innovative solutions to the Infrastructure, Energy Transition, Nuclear & Defence and Renewables sectors, Services include commissioning, decommissioning, hook-ups…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 14 | 68 contacts → | ||||
Exact match “Mirion Technologies UK is a leading provider of innovative products, systems and services related to the detection, measurement and monitoring of radiation.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 15 | 64 contacts → | ||||
Exact match “Hythe Engineering delivers precision engineering, fabrication, welding and pipefitting services to the UK’s leading Defence, Nuclear and Renewable-Energy contractors.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 16 | 51 contacts → | ||||
Exact match “React brings strategic clarity and delivery leadership to complex challenges in highly regulated sectors.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 17 | 42 contacts → | ||||
Exact match “JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 18 | 42 contacts → | ||||
Exact match “CDS Energy Services combines talented and experienced people with a state-of the art facility in the heart of the UK to provide full turnkey solutions to a range of blue chip…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 19 | 39 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 28, 2026 · View company records in RevenueBase | |||||
| 20 | 37 contacts → | ||||
Exact match “Keeping power, water, and rail moving since 1966.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 21 | 35 contacts → | ||||
Exact match “CORE Nuclear Solutions is a specialist nuclear remote engineering SME based at Lillyhall in Workington.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 22 | 35 contacts → | ||||
Exact match “On Monday 22nd August, Promanex was acquired by Costain Limited, a Costain Group Company.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 23 | 33 contacts → | ||||
Exact match “Based in Bristol, UK, Astral Systems was founded in 2021.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 24 | 29 contacts → | ||||
Exact match “DAGEM Power are a dynamic and fast-growing SME at the forefront of bringing new renewable and nuclear energy projects online.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 25 | 28 contacts → | ||||
Exact match “High Technology Sources Limited (HTSL) is renowned throughout the non destructive testing, industrial and medical industries for delivering high quality products on time.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “nuclear services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 213 nuclear services based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 7,036 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Nuclear services based in the United Kingdom at a glance
As of Oct 28, 2026Companies by employee count
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 213 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 services” 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 7,036 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 28, 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.
Nuclear services by metro
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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nuclear services are there based in the United Kingdom?
RevenueBase identified 213 company matches for nuclear services 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?
Atkins tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most nuclear services?
London leads with 26 company records, followed by Bristol (11) and Warrington (11).
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 7,036 professional contacts with verified work emails tracked across these 213 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 213 nuclear services based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Nuclear services by geography
- Nuclear services based in London, United Kingdom
- Nuclear services based in Oak Ridge, United States
- Nuclear services based in Brazil
- Nuclear services based in Canada
- Nuclear services based in France
- Nuclear services based in Germany
- Nuclear services based in India
- Nuclear services based in Italy
- Nuclear services based in the Netherlands
- Nuclear services based in Spain
- Nuclear services based in Sweden
- Nuclear services based in Türkiye
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 nuclear services based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 213 matching company records for nuclear services based in the United Kingdom, with 29,908 tracked contacts and 7,036 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: October 28, 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 services based in the United Kingdom
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 |  Atkinsatkinsglobal.comHQ: Epsom, United KingdomReported employees: 10001+ | Epsom, United Kingdom | 10001+ | Exact match | 9,147 contacts → |
“Atkins is now AtkinsRéalis.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  AWEawe.co.ukHQ: Reading, United KingdomReported employees: 5,001-10,000 | Reading, United Kingdom | 5,001-10,000 | Exact match | 1,838 contacts → |
“Our purpose is to protect the UK through nuclear science and technology, and our mission is to design and manufacture warheads and provide nuclear services to meet the needs of…” Recorded description excerpt · October 28, 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 | 1,684 contacts → |
“Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Warrington, United KingdomReported employees: 1,001-5,000 | Warrington, United Kingdom | 1,001-5,000 | Exact match | 780 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Urenco Globalurenco.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 556 contacts → |
“Urenco is an international supplier of enrichment services and fuel cycle products with sustainability at the core of its business.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  NSG Environmental LTDnsgltd.comHQ: Chorley, United KingdomReported employees: 501-1,000 | Chorley, United Kingdom | 501-1,000 | Exact match | 299 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Veolia Nuclear Solutionsnuclearsolutions.veolia.comHQ: Abingdon, United KingdomReported employees: 501-1,000 | Abingdon, United Kingdom | 501-1,000 | Exact match | 292 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Framatome UKframatome.comHQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 206 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 |  DBD Internationaldbdinternational.comHQ: Birchwood, United KingdomReported employees: 51-200 | Birchwood, United Kingdom | 51-200 | Exact match | 181 contacts → |
“DBD is an independent global enterprise providing innovative solutions to complex technical, engineering and strategic challenges in highly regulated industries.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Insite Technical Servicesinsitetechnical.comHQ: Pembroke Dock, United KingdomReported employees: 51-200 | Pembroke Dock, United Kingdom | 51-200 | Exact match | 95 contacts → |
“InSite Technical Services is the partner you can rely on to support any engineering requirement.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Orano Limitedorano.groupHQ: Abingdon, United KingdomReported employees: 51-200 | Abingdon, United Kingdom | 51-200 | Exact match | 85 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Mactech Energy Groupmactech.co.uk HQ: Tyne And Wear, United KingdomReported employees: 51-200 | Tyne And Wear, United Kingdom | 51-200 | Exact match | 83 contacts → |
“We build reliable workforces for the UK's nuclear projects.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | N-Ergisen-ergise.one HQ: Great Yarmouth, United KingdomReported employees: 51-200 | Great Yarmouth, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Providing innovative solutions to the Infrastructure, Energy Transition, Nuclear & Defence and Renewables sectors, Services include commissioning, decommissioning, hook-ups…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Mirion Technologies UKmirion.comHQ: Farnborough, United KingdomReported employees: 1,001-5,000 | Farnborough, United Kingdom | 1,001-5,000 | Exact match | 68 contacts → |
“Mirion Technologies UK is a leading provider of innovative products, systems and services related to the detection, measurement and monitoring of radiation.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Hythe Engineeringhythe-engineering.comHQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 64 contacts → |
“Hythe Engineering delivers precision engineering, fabrication, welding and pipefitting services to the UK’s leading Defence, Nuclear and Renewable-Energy contractors.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  React Engineering Limitedreact-engineering.co.ukHQ: Cleator, United KingdomReported employees: 11-50 | Cleator, United Kingdom | 11-50 | Exact match | 51 contacts → |
“React brings strategic clarity and delivery leadership to complex challenges in highly regulated sectors.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Thurso, United KingdomReported employees: 51-200 | Thurso, United Kingdom | 51-200 | Exact match | 42 contacts → |
“JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  CDS Energy Servicescdsenergyservices.comHQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 42 contacts → |
“CDS Energy Services combines talented and experienced people with a state-of the art facility in the heart of the UK to provide full turnkey solutions to a range of blue chip…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | National Nuclear Laboratorynnl.co.uk HQ: Warrington, United KingdomReported employees: 1,001-5,000 | Warrington, United Kingdom | 1,001-5,000 | Exact match | 39 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | EMI Co. LTDeminst.co.uk HQ: Gainsborough, United KingdomReported employees: 51-200 | Gainsborough, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Keeping power, water, and rail moving since 1966.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Core Nuclear Solutions LTDcorenuclear.co.ukHQ: Workington, United KingdomReported employees: 11-50 | Workington, United Kingdom | 11-50 | Exact match | 35 contacts → |
“CORE Nuclear Solutions is a specialist nuclear remote engineering SME based at Lillyhall in Workington.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Promanexpromanex.com HQ: Nr Atherstone, United KingdomReported employees: 501-1,000 | Nr Atherstone, United Kingdom | 501-1,000 | Exact match | 35 contacts → |
“On Monday 22nd August, Promanex was acquired by Costain Limited, a Costain Group Company.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Astral Systemsastralsystems.comHQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 33 contacts → |
“Based in Bristol, UK, Astral Systems was founded in 2021.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Dagem Powerdagem.co.uk HQ: Cannock, United KingdomReported employees: 11-50 | Cannock, United Kingdom | 11-50 | Exact match | 29 contacts → |
“DAGEM Power are a dynamic and fast-growing SME at the forefront of bringing new renewable and nuclear energy projects online.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HTSLhtsl.co.uk HQ: Didcot, United KingdomReported employees: 11-50 | Didcot, United Kingdom | 11-50 | Exact match | 28 contacts → |
“High Technology Sources Limited (HTSL) is renowned throughout the non destructive testing, industrial and medical industries for delivering high quality products on time.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 213 company matches
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Nuclear services: dataset insights
October 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
213 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured 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 213 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 28, 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 services by metro
Questions about this company list
What does Exact match mean for nuclear services?
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 services did RevenueBase find based in the United Kingdom?
The saved snapshot records 213 matching company records, 29,908 tracked contacts and 7,036 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: October 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nuclear services by geography
- Nuclear services based in London, United Kingdom
- Nuclear services based in Oak Ridge, United States
- Nuclear services based in Brazil
- Nuclear services based in Canada
- Nuclear services based in France
- Nuclear services based in Germany
- Nuclear services based in India
- Nuclear services based in Italy
- Nuclear services based in the Netherlands
- Nuclear services based in Spain
- Nuclear services based in Sweden
- Nuclear services based in Türkiye
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 nuclear services based in the United Kingdom. Snapshot: October 28, 2026. https://revenuebase.ai/companies/nuclear-services/united-kingdom.
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 services based in the United Kingdom
RevenueBase records 213 matching company records for nuclear services based in the United Kingdom, with 29,908 tracked contacts and 7,036 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: October 28, 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 services based in the United Kingdom
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 | Atkinsatkinsglobal.com HQ: Epsom, United KingdomReported employees: 10001+ | Epsom, United Kingdom | 10001+ | Exact match | 9,147 contacts → |
“Atkins is now AtkinsRéalis.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | AWEawe.co.uk HQ: Reading, United KingdomReported employees: 5,001-10,000 | Reading, United Kingdom | 5,001-10,000 | Exact match | 1,838 contacts → |
“Our purpose is to protect the UK through nuclear science and technology, and our mission is to design and manufacture warheads and provide nuclear services to meet the needs of…” Recorded description excerpt · October 28, 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 | 1,684 contacts → |
“Cavendish Nuclear is a core part of Babcock International Group’s Nuclear Sector.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Warrington, United KingdomReported employees: 1,001-5,000 | Warrington, United Kingdom | 1,001-5,000 | Exact match | 780 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Urenco Globalurenco.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 556 contacts → |
“Urenco is an international supplier of enrichment services and fuel cycle products with sustainability at the core of its business.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NSG Environmental LTDnsgltd.com HQ: Chorley, United KingdomReported employees: 501-1,000 | Chorley, United Kingdom | 501-1,000 | Exact match | 299 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Veolia Nuclear Solutionsnuclearsolutions.veolia.com HQ: Abingdon, United KingdomReported employees: 501-1,000 | Abingdon, United Kingdom | 501-1,000 | Exact match | 292 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Framatome UKframatome.com HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 206 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | DBD Internationaldbdinternational.com HQ: Birchwood, United KingdomReported employees: 51-200 | Birchwood, United Kingdom | 51-200 | Exact match | 181 contacts → |
“DBD is an independent global enterprise providing innovative solutions to complex technical, engineering and strategic challenges in highly regulated industries.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Insite Technical Servicesinsitetechnical.com HQ: Pembroke Dock, United KingdomReported employees: 51-200 | Pembroke Dock, United Kingdom | 51-200 | Exact match | 95 contacts → |
“InSite Technical Services is the partner you can rely on to support any engineering requirement.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Orano Limitedorano.group HQ: Abingdon, United KingdomReported employees: 51-200 | Abingdon, United Kingdom | 51-200 | Exact match | 85 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Mactech Energy Groupmactech.co.uk HQ: Tyne And Wear, United KingdomReported employees: 51-200 | Tyne And Wear, United Kingdom | 51-200 | Exact match | 83 contacts → |
“We build reliable workforces for the UK's nuclear projects.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | N-Ergisen-ergise.one HQ: Great Yarmouth, United KingdomReported employees: 51-200 | Great Yarmouth, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Providing innovative solutions to the Infrastructure, Energy Transition, Nuclear & Defence and Renewables sectors, Services include commissioning, decommissioning, hook-ups…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Mirion Technologies UKmirion.com HQ: Farnborough, United KingdomReported employees: 1,001-5,000 | Farnborough, United Kingdom | 1,001-5,000 | Exact match | 68 contacts → |
“Mirion Technologies UK is a leading provider of innovative products, systems and services related to the detection, measurement and monitoring of radiation.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hythe Engineeringhythe-engineering.com HQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 64 contacts → |
“Hythe Engineering delivers precision engineering, fabrication, welding and pipefitting services to the UK’s leading Defence, Nuclear and Renewable-Energy contractors.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | React Engineering Limitedreact-engineering.co.uk HQ: Cleator, United KingdomReported employees: 11-50 | Cleator, United Kingdom | 11-50 | Exact match | 51 contacts → |
“React brings strategic clarity and delivery leadership to complex challenges in highly regulated sectors.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Thurso, United KingdomReported employees: 51-200 | Thurso, United Kingdom | 51-200 | Exact match | 42 contacts → |
“JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | CDS Energy Servicescdsenergyservices.com HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 42 contacts → |
“CDS Energy Services combines talented and experienced people with a state-of the art facility in the heart of the UK to provide full turnkey solutions to a range of blue chip…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | National Nuclear Laboratorynnl.co.uk HQ: Warrington, United KingdomReported employees: 1,001-5,000 | Warrington, United Kingdom | 1,001-5,000 | Exact match | 39 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | EMI Co. LTDeminst.co.uk HQ: Gainsborough, United KingdomReported employees: 51-200 | Gainsborough, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Keeping power, water, and rail moving since 1966.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Core Nuclear Solutions LTDcorenuclear.co.uk HQ: Workington, United KingdomReported employees: 11-50 | Workington, United Kingdom | 11-50 | Exact match | 35 contacts → |
“CORE Nuclear Solutions is a specialist nuclear remote engineering SME based at Lillyhall in Workington.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Promanexpromanex.com HQ: Nr Atherstone, United KingdomReported employees: 501-1,000 | Nr Atherstone, United Kingdom | 501-1,000 | Exact match | 35 contacts → |
“On Monday 22nd August, Promanex was acquired by Costain Limited, a Costain Group Company.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Astral Systemsastralsystems.com HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 33 contacts → |
“Based in Bristol, UK, Astral Systems was founded in 2021.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Dagem Powerdagem.co.uk HQ: Cannock, United KingdomReported employees: 11-50 | Cannock, United Kingdom | 11-50 | Exact match | 29 contacts → |
“DAGEM Power are a dynamic and fast-growing SME at the forefront of bringing new renewable and nuclear energy projects online.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HTSLhtsl.co.uk HQ: Didcot, United KingdomReported employees: 11-50 | Didcot, United Kingdom | 11-50 | Exact match | 28 contacts → |
“High Technology Sources Limited (HTSL) is renowned throughout the non destructive testing, industrial and medical industries for delivering high quality products on time.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 213 company matches
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Nuclear services: dataset insights
October 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
213 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured 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 213 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 28, 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 services by metro
Questions about this company list
What does Exact match mean for nuclear services?
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 services did RevenueBase find based in the United Kingdom?
The saved snapshot records 213 matching company records, 29,908 tracked contacts and 7,036 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: October 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nuclear services by geography
- Nuclear services based in London, United Kingdom
- Nuclear services based in Oak Ridge, United States
- Nuclear services based in Brazil
- Nuclear services based in Canada
- Nuclear services based in France
- Nuclear services based in Germany
- Nuclear services based in India
- Nuclear services based in Italy
- Nuclear services based in the Netherlands
- Nuclear services based in Spain
- Nuclear services based in Sweden
- Nuclear services based in Türkiye
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Cite this list
RevenueBase Data Team. Top 25 nuclear services based in the United Kingdom. Snapshot: October 28, 2026. https://revenuebase.ai/companies/nuclear-services/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗