Company lists · Data refreshed September 2026

Top 25 Cyber-physical security companies worldwide

Name: Cyber-physical security companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 17,992 companies tracked

RevenueBase identified 17,992 cyber-physical security companies worldwide as of September 2026 and tracks 657,288 professional contacts across them, including 116,960 with verified work emails and 99,442 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers cyber-physical security companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026. Country and city lists for cyber-physical security companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

17,992Companies

657,288Contacts tracked

116,960Verified emails

99,442Mobile numbers

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The 25 largest cyber-physical security companies worldwide

Ranked by team size

Top 25 of 17,992 cyber-physical security companies worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cyber-physical security companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	G4s	Partial evidence	Albertslund, DK	10001+	79,344 contacts →
	Partial evidence “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Source: RevenueBase Database · checked Sep 1, 2026
2	Allied Universal	Partial evidence	Rosemont, IL, US	10001+	62,715 contacts →
	Partial evidence “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Source: RevenueBase Database · checked Sep 1, 2026
3	Prosegur	Indirect evidence	Madrid, ES	10001+	40,549 contacts →
	Indirect evidence “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Source: RevenueBase Database · checked Sep 1, 2026
4	Securitas Security Services Usa, INC	Partial evidence	Boise, ID, US	10001+	38,650 contacts →
	Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 1, 2026
5	Palo Alto Networks	Indirect evidence	He, NL	10001+	18,430 contacts →
	Indirect evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 1, 2026
6	Fortinet	Indirect evidence	Ottawa, ON, CA	10001+	14,326 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 1, 2026
7	Chubb Fire & Security	Indirect evidence	Staines, GB	10001+	6,212 contacts →
	Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 1, 2026
8	Convergint	Indirect evidence	Hoffman Estates, IL, US	10001+	5,729 contacts →
	Indirect evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 1, 2026
9	TYCO	Partial evidence	Cork, IE	10001+	5,359 contacts →
	Partial evidence “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Source: RevenueBase Database · checked Sep 1, 2026
10	Axis Communications	Partial evidence	Bucharest, RO	1,001-5,000	4,823 contacts →
	Partial evidence “Axis enables a smarter and safer world by creating solutions for improving security and business performance.” Source: RevenueBase Database · checked Sep 1, 2026
11	Securitas France	Partial evidence	Issy-Les-Moulineaux, FR	10001+	3,884 contacts →
	Partial evidence “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Source: RevenueBase Database · checked Sep 1, 2026
12	Securitas Seguridad España	Partial evidence	Madrid, ES	10001+	3,616 contacts →
	Partial evidence “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Source: RevenueBase Database · checked Sep 1, 2026
13	U.S. Security Associates, INC	Indirect evidence	Salt Lake City, UT, US	10001+	3,600 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 1, 2026
14	Andy Frain Services	Partial evidence	Aurora, IL, US	5,001-10,000	2,265 contacts →
	Partial evidence “Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Source: RevenueBase Database · checked Sep 1, 2026
15	Genetec	Indirect evidence	Orleans, FR	1,001-5,000	2,210 contacts →
	Indirect evidence “Genetec is a global technology company that helps organizations secure and manage their environments.” Source: RevenueBase Database · checked Sep 1, 2026
16	OPTIV	Partial evidence	Chantilly, VA, US	1,001-5,000	2,206 contacts →
	Partial evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 1, 2026
17	Security Segurança E Serviços	Indirect evidence	Sao Paulo, BR	5,001-10,000	2,152 contacts →
	Indirect evidence “Com mais de 8 mil colaboradores, presente em 11 estados, vencedora do Prêmio Valor Carreira por sete vezes consecutivas, certificada pela GPTW e única empresa brasileira membro do…” Source: RevenueBase Database · checked Sep 1, 2026
18	Securitas Turkey	Partial evidence	Ankara, TürkiyeHQ checked Sep 1, 2026	10001+	2,057 contacts →
	Partial evidence “Securitas, 44 ülkede, 350 bin çalışanı ile yaklaşık 90 yıldır dünyanın daha güvenli hale gelmesi için çalışıyor.” Source: RevenueBase Database · checked Sep 1, 2026
19	Everon	Partial evidence	Irving, TX, US	1,001-5,000	2,022 contacts →
	Partial evidence “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Source: RevenueBase Database · checked Sep 1, 2026
20	Paragon Systems INC	Partial evidence	Herndon, VA, US	10001+	1,946 contacts →
	Partial evidence “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Source: RevenueBase Database · checked Sep 1, 2026
21	Trigion	Indirect evidence	Jd, NL	5,001-10,000	1,916 contacts →
	Indirect evidence “Elke dag zetten onze collega’s zich in voor jouw veiligheid en die van iedereen om jou heen, zodat jij je veilig voelt en veilig bent.” Source: RevenueBase Database · checked Sep 1, 2026
22	Ninguno	Indirect evidence	Madrid, ES	n/a	1,745 contacts →
	Indirect evidence “Siadde Soluciones es una compañía tecnológica, innovadora y competitiva en un contexto global.” Source: RevenueBase Database · checked Sep 1, 2026
23	Securiguard Middle East LLC	Partial evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 1, 2026	10001+	1,541 contacts →
	Partial evidence “Welcome to Securiguard Middle East, Your answer for an Integrated Safety and Security Solutions in the UAE At Securiguard Middle East, we are driven by a commitment to make a…” Source: RevenueBase Database · checked Sep 1, 2026
24	Fidelity ADT	Partial evidence	Cape Town, ZA	10001+	1,539 contacts →
	Partial evidence “FIDELITY ADT COMMERCIAL Fidelity ADT Commercial, a division of Fidelity ADT is a leading provider of integrated retail performance and security solutions, deployed today at more…” Source: RevenueBase Database · checked Sep 1, 2026
25	Mitie Security	Partial evidence	Northampton, GB	10001+	1,513 contacts →
	Partial evidence “We are an intelligence-led security business.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cyber-physical security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cyber-physical security companies.
Partial evidence: Its own public description names part of cyber-physical security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber-physical security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 17,992 cyber-physical security companies worldwide

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Cyber-physical security companies worldwide at a glance

As of Sep 1, 2026

17.8%Verified-email coverage

15.1%Mobile-number coverage

36.5Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

7,454

11-50

6,535

51-200

2,313

201-500

694

501-1,000

309

1,001-5,000

309

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cyber-physical security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 56 countries, largest first: the United States, the United Kingdom, Brazil, India, France, Canada, Australia, Italy, Germany, Mexico and 46 more. Country and city lists for cyber-physical security companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cyber-physical security companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cyber-physical security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cyber-physical security companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 116,960 across the full list. 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 between September 1, 2026 and September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cyber-physical security companies by location

102 lists · largest first

Every Cyber-physical security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cyber-physical security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cyber-physical security companies are there worldwide?

RevenueBase identified 17,992 cyber-physical security companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

G4s, headquartered in Albertslund, tops this list with the largest team on record.

Which country has the most cyber-physical security companies?

The United States leads with 3,998 companies, followed by the United Kingdom (1,518) and Brazil (1,275). Every cyber-physical security companies list by country and city is linked on this page.

Which city has the most cyber-physical security companies?

Sao Paulo leads with 287 headquartered companies, followed by London (274) and Dubai (180).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 116,960 verified decision-maker contacts tracked across these 17,992 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 1, 2026 and September 14, 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 Smart Search, 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.