Company lists · Data refreshed November 2026

Top 25 Nuclear safety engineering consultants worldwide

RevenueBase identified 680 company matches for nuclear safety engineering consultants worldwide as of November 2026 and tracks 51,021 professional contacts across them, including 21,694 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for nuclear safety engineering consultants 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 5, 2026. Country and city lists for nuclear safety engineering consultants 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 5, 2026 How this list was built
680Companies
51,021Contacts tracked
21,694Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest nuclear safety engineering consultants worldwide

Ranked by team size
Top 25 of 680 company matches for nuclear safety engineering consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 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 matchMontreal, QC, CanadaHQ recorded Nov 5, 202610001+25,123 contacts →

Exact match

“We are a world-class engineering services and nuclear organization.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchEpsom, FL, United KingdomHQ recorded Nov 5, 202610001+9,322 contacts →

Exact match

“Atkins is now AtkinsRéalis.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMarseille, FranceHQ recorded Nov 5, 20261,001-5,0001,782 contacts →

Exact match

“Onet Technologies has 40 years of experience in the nuclear industry, with a strong expertise in engineering and services for reactor maintenance; dismantling, decommissioning and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Nov 5, 2026501-1,000484 contacts →

Exact match

“TECNATOM was set up in 1957 as a Spanish engineering company specialising in guaranteeing the operation and maintenance of nuclear power plants to the highest levels of safety.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchColumbia, MD, United StatesHQ recorded Nov 5, 2026201-500451 contacts →

Exact match

“GSE Solutions supports nuclear power and clean-energy fleets worldwide through integrated engineering services and software that strengthen operational performance.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchChorley, United KingdomHQ recorded Nov 5, 2026501-1,000307 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchOcteville, FranceHQ recorded Nov 5, 2026501-1,000307 contacts →

Exact match

“Expert in risk prevention in the nuclear environment, the CERAP Group brings together through its various entities a range of expertise contributing to the protection of people…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchEdinburgh, United KingdomHQ recorded Nov 5, 202651-200281 contacts →

Exact match

“Abbott Risk Consulting (ARC) is a dynamic safety engineering consultancy with a world-wide reputation for delivering quality solutions to the nuclear, defence, oil and gas…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Nov 5, 20261,001-5,000268 contacts →

Exact match

“CANBERRA, now a part of Mirion Technologies, is a leading provider of innovative and cost-effective nuclear measurement solutions used to maintain safety of personnel, assess the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchFort Worth, TX, United StatesHQ recorded Nov 5, 2026201-500252 contacts →

Exact match

“Paragon tackles the most difficult challenges of the nuclear industry-those faced by the current operating fleet as well as the next generation of advanced reactors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Nov 5, 2026501-1,000248 contacts →

Exact match

“we have provided high-end engineering services to ensure safety, quality, and regulatory compliance across critical infrastructures and strategic industrial sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchWilmington, TX, United StatesHQ recorded Nov 5, 2026501-1,000244 contacts →

Exact match

“Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBolevec, Czech RepublicHQ recorded Nov 5, 20261,001-5,000230 contacts →

Exact match

“ŠKODA JS a.s.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBristol, United KingdomHQ recorded Nov 5, 2026201-500212 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSwedenHQ recorded Nov 5, 2026501-1,000211 contacts →

Exact match

“Studsvik offers a range of advanced technical services to the global nuclear power industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchAlbuquerque, NM, United StatesHQ recorded Nov 5, 2026201-500205 contacts →

Exact match

“SMSI is a small business providing management and technical/engineering services to the DOE/NNSA, national laboratories, and industrial clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchFranceHQ recorded Nov 5, 20265,001-10,000187 contacts →

Exact match

“Nuclear for naval propulsion and peacefull research.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchBirchwood, SC, United KingdomHQ recorded Nov 5, 202651-200185 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 · Nov 5, 2026 · View company records in RevenueBase
19Exact matchCologne, GermanyHQ recorded Nov 5, 2026201-500179 contacts →

Exact match

“Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) mbH is a non-profit and independent research and expert organisation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBagnols Sur Ceze, FranceHQ recorded Nov 5, 2026201-500175 contacts →

Exact match

“Société d’ingénierie, ECIA, une marque d'Equans, est un acteur de la filière nucléaire dans le domaine de la maîtrise des risques.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchOak Ridge, NM, United StatesHQ recorded Nov 5, 2026201-500169 contacts →

Exact match

“Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchKennewick, WA, United StatesHQ recorded Nov 5, 2026501-1,000137 contacts →

Exact match

“Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSignal Hill, CA, United StatesHQ recorded Nov 5, 2026501-1,000132 contacts →

Exact match

“With more than a half-century in the nuclear business, is an expert in nuclear material handling and lifting equipment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPeachtree Corners, GA, United StatesHQ recorded Nov 5, 202651-200123 contacts →

Exact match

“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchTrnava, SlovakiaHQ recorded Nov 5, 2026501-1,000122 contacts →

Exact match

“VUJE, a.s, is an engineering company that performs design, supply, realization, research, and training activities mainly in the field of nuclear and classical power engineering.”

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

Showing 25 of 680 nuclear safety engineering consultants worldwide

See the full list, filter by size, metro and specialty, and access 21,694 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Nuclear safety engineering consultants worldwide at a glance

As of Nov 5, 2026
42.5%Verified-email coverage
75.0Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
353
11-50
182
51-200
77
201-500
31
501-1,000
14
1,001-5,000
10
5,001-10,000
2
10001+
3

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 nuclear safety engineering consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear safety engineering consultants” 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 21,694 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 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.

Nuclear safety engineering consultants by location

4 lists · largest first

Every Nuclear safety engineering consultants 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 “nuclear safety engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear safety engineering consultants are there worldwide?

RevenueBase identified 680 company matches for nuclear safety engineering consultants 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?

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

Which country has the most nuclear safety engineering consultants?

The United States leads with 156 companies, followed by France (67) and the United Kingdom (63). Every nuclear safety engineering consultants list by country and city is linked on this page.

Which city has the most nuclear safety engineering consultants?

Sao Paulo leads with 11 company records, followed by Bristol (6) and Warrington (6).

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 21,694 professional contacts with verified work emails tracked across these 680 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 680 nuclear safety engineering consultants worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.