Company lists · Data refreshed November 2026

Top 25 Nuclear facility security providers worldwide

RevenueBase identified 296 company matches for nuclear facility security providers worldwide as of November 2026 and tracks 13,557 professional contacts across them, including 1,361 with verified work emails. The United States is the largest market and Chicago the largest hub.

This list covers company matches for nuclear facility security providers 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 facility security providers 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
296Companies
13,557Contacts tracked
1,361Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest nuclear facility security providers worldwide

Ranked by team size
Top 25 of 296 company matches for nuclear facility security providers 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 matchHerndon, VA, United StatesHQ recorded Nov 5, 202610001+1,186 contacts →

Exact match

“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchPittsburgh, PA, United StatesHQ recorded Nov 5, 20265,001-10,0001,168 contacts →

Exact match

“Founded in 1982, St.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchCergy-pontoise Cedex, FranceHQ recorded Nov 5, 20261,001-5,0001,137 contacts →

Exact match

“À propos de SPIE Nucléaire Filiale de SPIE France, SPIE Nucléaire est le partenaire de référence multi-technique dans la conception, la réalisation, les travaux de modification…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchErlensee (hessen), GermanyHQ recorded Nov 5, 20261,001-5,000409 contacts →

Exact match

“Täglich verlassen sich unsere Kunden auf unsere hochwertigen Dienstleistungen in den Bereichen Sicherheit, Prävention und Service.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchRockville Centre, NJ, United StatesHQ recorded Nov 5, 20261,001-5,000287 contacts →

Exact match

“Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact match76230 - Isneauville, FranceHQ recorded Nov 5, 2026501-1,000175 contacts →

Exact match

“ATLAS SÉCURITÉ PRIVÉE / Expert dans les métiers de la sécurité (Collectivités, Evènementiel, Grande distribution, Industrie & Nucléaire, Portuaire & Logistique, Tertiaire)”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchSanturce, SpainHQ recorded Nov 5, 20261,001-5,000164 contacts →

Exact match

“Capitol Security Police, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchGreenville, SC, United StatesHQ recorded Nov 5, 20261,001-5,000144 contacts →

Exact match

“Privately owned and operated, American Security has grown from an entrepreneurial start-up in 1975 to become one of the largest Southeastern-based security firms with over 3,500…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMemphis, TN, United StatesHQ recorded Nov 5, 2026501-1,000130 contacts →

Exact match

“Security One, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLouisville, KY, United StatesHQ recorded Nov 5, 20261,001-5,000121 contacts →

Exact match

“Brantley Security provides quality security services through quick response, experienced management and an unmatched attention to detail.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000120 contacts →

Exact match

“Excel Security Corp.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchCharlotte, TN, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
13Exact matchMarseille, FranceHQ recorded Nov 5, 2026201-500115 contacts →

Exact match

“Depuis près de 40 ans, la mission de "Sécurité Industrielle"(S.I.) est d'assurer la sécurité des biens et des personnes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNixa, CO, United StatesHQ recorded Nov 5, 2026501-1,000100 contacts →

Exact match

“Citadel Security is a veteran-owned organization with over 40 years of combined security and military experience and has been operating as a company since April 2007.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchBurnaby, BC, CanadaHQ recorded Nov 5, 2026201-50092 contacts →

Exact match

“Since 2014, Armour Security has been a national security service provider with operations across British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, and Quebec.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchChicago, IL, United StatesHQ recorded Nov 5, 20261,001-5,00068 contacts →

Exact match

“Prudential Defense Solutions is a full‑service security provider offering professional guard services, door staff, and government‑contractor.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNoida, IndiaHQ recorded Nov 5, 20265,001-10,00066 contacts →

Exact match

“Checkmate Industrial Guards Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchHallandale Beach, FL, United StatesHQ recorded Nov 5, 202611-5065 contacts →

Exact match

“Golden Security Services stands at the forefront of safeguarding radioactive sources throughout their entire lifecycle, blending personalized security solutions with strict…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchCamden, NJ, United StatesHQ recorded Nov 5, 2026201-50064 contacts →

Exact match

“HSI is a vanguard in providing a full range of security solutions with specializations in the leveraging of innovative strategies and technologies for maximization of safety to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchCoyoacán, MexicoHQ recorded Nov 5, 20261,001-5,00058 contacts →

Exact match

“Somos una empresa con más de 10 años en el sector de la Seguridad Privada.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 5, 2026501-1,00050 contacts →

Exact match

“AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchCharlottetown, PE, CanadaHQ recorded Nov 5, 202651-20044 contacts →

Exact match

“At NPSS, we are committed to creating a safe and secure experience for all our clients and the public.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchPhiladelphia, CO, United StatesHQ recorded Nov 5, 2026201-50043 contacts →

Exact match

“Founded in 2004, Sovereign Security is known as a quality first security & screening services firm, focused on providing reliable protection and unparalleled customer service.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPalermo, ItalyHQ recorded Nov 5, 20261,001-5,00041 contacts →

Exact match

“Il Gruppo KSM spa da oltre un secolo rappresenta in Italia il nome leader nel settore della sicurezza, con specifiche competenze nelle attività integrate di vigilanza, servizi di…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchAiken, SC, United StatesHQ recorded Nov 5, 2026501-1,00041 contacts →

Exact match

“Centerra-Savannah River Site (SRS) is an independent entity of Centerra Group LLC a Constellis company.”

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

Showing 25 of 296 nuclear facility security providers worldwide

See the full list, filter by size, metro and specialty, and access 1,361 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Nuclear facility security providers worldwide at a glance

As of Nov 5, 2026
10.0%Verified-email coverage
45.8Average contacts per company
51-200Median size (employees)
1.0%Largest-city concentration · Chicago
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
74
11-50
69
51-200
71
201-500
23
501-1,000
20
1,001-5,000
24
5,001-10,000
8
10001+
4

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 facility security providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “nuclear facility security providers” 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 1,361 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 facility security providers by location

1 lists · largest first

Every Nuclear facility security providers 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 facility security providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear facility security providers are there worldwide?

RevenueBase identified 296 company matches for nuclear facility security providers 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?

Securitas Critical Infrastructure Services, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most nuclear facility security providers?

The United States leads with 79 companies. Every nuclear facility security providers list by country and city is linked on this page.

Which city has the most nuclear facility security providers?

Chicago leads with 3 company records, followed by Monterrey (3) and New Delhi (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,361 professional contacts with verified work emails tracked across these 296 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 296 nuclear facility security providers 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.