Company lists · Data refreshed September 2026

Top 25 Nuclear consulting firms based in the United Kingdom

RevenueBase identified 74 company matches for nuclear consulting firms associated with the United Kingdom as of September 2026 and tracks 12,799 professional contacts across them, including 4,422 with verified work emails and 1,193 with mobile numbers. London is the largest hub.

This list covers company matches for nuclear consulting 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 September 5, 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 Sep 5, 2026 How this list was built
74Companies
12,799Contacts tracked
4,422Verified emails
1,193Mobile numbers
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The 25 largest nuclear consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 74 company matches for nuclear consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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 matchEpsom, United KingdomHQ recorded Sep 5, 202610001+9,297 contacts →

Exact match

“Atkins is now AtkinsRéalis.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2Exact matchBirchwood, United KingdomHQ recorded Sep 5, 20265,001-10,0001,592 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3Exact matchChorley, United KingdomHQ recorded Sep 5, 2026501-1,000297 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 · Sep 5, 2026 · View company records in RevenueBase
4Exact matchAbingdon, United KingdomHQ recorded Sep 5, 2026501-1,000284 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 · Sep 5, 2026 · View company records in RevenueBase
5Exact matchBristol, United KingdomHQ recorded Sep 5, 2026201-500181 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6Exact matchBirchwood, United KingdomHQ recorded Sep 5, 202651-200169 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 · Sep 5, 2026 · View company records in RevenueBase
7Exact matchPembroke Dock, United KingdomHQ recorded Sep 5, 202651-20089 contacts →

Exact match

“InSite Technical Services is the partner you can rely on to support any engineering requirement.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8Exact matchCleator, United KingdomHQ recorded Sep 5, 202611-5047 contacts →

Exact match

“React brings strategic clarity and delivery leadership to complex challenges in highly regulated sectors.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9Exact matchTwyford, United KingdomHQ recorded Sep 5, 202651-20035 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 · Sep 5, 2026 · View company records in RevenueBase
10Exact matchBirchwood, United KingdomHQ recorded Sep 5, 202611-5023 contacts →

Exact match

“Cerberus Nuclear is a technical consultancy with over 100 cumulative years experience specialising in Radiation Shielding, Criticality Safety and Nuclear Characterisation.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11Exact matchBristol, United KingdomHQ recorded Sep 5, 202611-5023 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 · Sep 5, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 5, 202651-20018 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 · Sep 5, 2026 · View company records in RevenueBase
13Exact matchPenrith, United KingdomHQ recorded Sep 5, 202611-5017 contacts →

Exact match

“Eden NE provides consultancy and management services within the nuclear sector and for other users of radioactive materials.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14Exact matchWarrington, United KingdomHQ recorded Sep 5, 202611-5015 contacts →

Exact match

“Stantec is a global leader in sustainable engineering, architecture, and environmental consulting.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15Exact matchCorby, United KingdomHQ recorded Sep 5, 20261-1010 contacts →

Exact match

“Acuity provides consultancy services and technical resource to our clients within the engineering sector.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 5, 20261-1010 contacts →

Exact match

“Global Nuclear Security Partners (GNSP) is a specialist management consultancy advising governments, regulators, operators, and technology vendors on nuclear security, safeguards…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17Exact matchWigan, United KingdomHQ recorded Sep 5, 202611-509 contacts →

Exact match

“ProjEcon is a specialist provider of consultancy services within the Engineering and Nuclear Sectors, skills include Project Management, Engineering Management, Mechanical…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18Exact matchSaltash, United KingdomHQ recorded Sep 5, 202611-509 contacts →

Exact match

“Design and Safety Limited is an engineering consultancy focussed on design and safety management and delivery in the nuclear industry.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19Exact matchBristol, United KingdomHQ recorded Sep 5, 202611-509 contacts →

Exact match

“NAVAL SOLUTIONS is a Consultancy company based out of Bristol UK specialising in Naval and Nuclear Engineering.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20Exact matchBuilding R104, United KingdomHQ recorded Sep 5, 202611-508 contacts →

Exact match

“MCM Environmental Services Ltd brings together a team of consultants, founding partners and associates with unique international strategic, scientific and technical experience in…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21Exact matchNorthampton, United KingdomHQ recorded Sep 5, 20261-107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22Exact matchFrome, United KingdomHQ recorded Sep 5, 202611-506 contacts →

Exact match

“Nuclear Safety and Engineering Helping companies maintain safe, secure and continued operations, whilst complying with stringent, contractual, legal and regulatory requirements in…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23Exact matchGloucester, United KingdomHQ recorded Sep 5, 20261-105 contacts →

Exact match

“We are a leading Management Consultancy focused on highly Regulated and complex industries such as Nuclear, Infrastructure, Construction and Facilities Management.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24Exact matchGloucester, United KingdomHQ recorded Sep 5, 202611-504 contacts →

Exact match

“Nuclear Consulting delivers specialist advice and support to clients throughout the nuclear industry.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25Exact matchNewbury, United KingdomHQ recorded Sep 5, 20261-104 contacts →

Exact match

“Nuclear Recruitment Experts offering a unique and refreshing approach to our clients and candidates.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

Showing 25 of 74 nuclear consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,422 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026
34.5%Verified-email coverage
9.3%Mobile-number coverage
173.0Average contacts per company
1-10Median size (employees)
12.2%Largest-city concentration · London
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
19
51-200
4
201-500
2
501-1,000
3
1,001-5,000
1
5,001-10,000
1
10001+
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 consulting 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 4,422 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 September 5, 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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 74 company matches for nuclear consulting firms associated with the United Kingdom as of September 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 consulting firms?

London leads with 9 company records, followed by Bristol (5) and Gloucester (4).

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 4,422 professional contacts with verified work emails tracked across these 74 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 September 5, 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.