Company lists · Data refreshed November 2026

Top 25 Nuclear regulatory compliance services worldwide

RevenueBase identified 489 company matches for nuclear regulatory compliance services worldwide as of November 2026 and tracks 10,374 professional contacts across them, including 3,224 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

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

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

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
489Companies
10,374Contacts tracked
3,224Verified emails
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The 25 largest nuclear regulatory compliance services worldwide

Ranked by team size
Top 25 of 489 company matches for nuclear regulatory compliance services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMarseille, FranceHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
2Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
3Exact matchChorley, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
4Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
5Exact matchWilmington, TX, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchBolevec, Czech RepublicHQ recorded Nov 6, 20261,001-5,000230 contacts →

Exact match

“ŠKODA JS a.s.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMontrouge, FranceHQ recorded Nov 6, 20261,001-5,000221 contacts →

Exact match

“Partner for the nuclear industry Bilfinger has successfully supported and advised customers from the nuclear industry for decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGlenwood, IL, AustraliaHQ recorded Nov 6, 2026501-1,000195 contacts →

Exact match

“LANDAUER offers a comprehensive spectrum of radiation monitoring and consulting solutions, tailored to your specific needs, to significantly reduce the burden of compliance and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBirchwood, SC, United KingdomHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchBagnols Sur Ceze, FranceHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
11Exact matchCenturion, South AfricaHQ recorded Nov 6, 202651-200171 contacts →

Exact match

“The National Nuclear Regulator (NNR) is a public entity which is established and governed in terms of Section 3 of the National Nuclear Regulator Act,(Act No 47 of to provide for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOak Ridge, NM, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
13Exact matchKennewick, WA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
14Exact matchPeachtree Corners, GA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
15Exact matchCharlotte, TN, United StatesHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“At Atkins Nuclear Solutions US, we offer client solutions crafted by the best engineers and specialists in the industry, served with truly exceptional customer service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWheat Ridge, CO, United StatesHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“HukariAscendent is a technical consulting and engineering company specializing in comprehensive engineering and technical services associated with the nuclear industry and power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Certrec, now a Mirion Technologies company, is a leading provider of regulatory compliance and digital integration solutions for the energy industry, with the mission of helping…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGreensboro, GA, United StatesHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Meridian Services Group (formerly High Bridge Associates and Work Management, Inc.) is a project management consulting and services company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNorth Augusta, TN, United StatesHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“Founded in 1989, TFE, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBurr Ridge, IL, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Fauske & Associates (FAI) is a world leader in nuclear, industrial and chemical process safety.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchParis Cedex 12, FranceHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Pour répondre à la demande énergétique croissante dans le monde, setec nucléaire accompagne les acteurs du nucléaire dans le développement de leurs projets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNorcross, GA, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“United Controls International was established as a division of Reliance Electric in 1971 and was later spun off as an independent company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGray, LA, United StatesHQ recorded Nov 6, 2026201-50052 contacts →

Exact match

“Experienced industry personnel bundled with the latest technology and a positive attitude brings your project to a whole new level.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLatrobe, PA, United StatesHQ recorded Nov 6, 2026201-50050 contacts →

Exact match

“Established in 1987, Master-Lee Energy Services was founded to provide the commercial Nuclear Power Industry with engineering, reactor services, decontamination, Reactor Coolant…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchClamart, FranceHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Crée en KURY Ingénierie est un bureau d'études spécialisé dans la conception et la sûreté nucléaire.”

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

Showing 25 of 489 nuclear regulatory compliance services worldwide

See the full list, filter by size, metro and specialty, and access 3,224 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear regulatory compliance services worldwide at a glance

As of Nov 6, 2026
31.1%Verified-email coverage
21.2Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
273
11-50
130
51-200
49
201-500
17
501-1,000
7
1,001-5,000
4
5,001-10,000
1
10001+
2

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 regulatory compliance services are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear regulatory compliance 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. 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 3,224 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Nuclear regulatory compliance services by location

3 lists · largest first

Every Nuclear regulatory compliance services 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 regulatory compliance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear regulatory compliance services are there worldwide?

RevenueBase identified 489 company matches for nuclear regulatory compliance services 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?

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

Which country has the most nuclear regulatory compliance services?

The United States leads with 144 companies, followed by France (46) and the United Kingdom (34). Every nuclear regulatory compliance services list by country and city is linked on this page.

Which city has the most nuclear regulatory compliance services?

Sao Paulo leads with 8 company records, followed by Gloucester (4) and Pierrelatte (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 3,224 professional contacts with verified work emails tracked across these 489 companies; direct dials are available where recorded.

How current is this list?

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

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About this data

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