Company lists · Data refreshed September 2026

Top 25 Infrastructure protection companies worldwide

Name: Infrastructure protection companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 22,865 companies tracked

RevenueBase identified 22,865 company matches for infrastructure protection companies worldwide as of September 2026 and tracks 641,241 professional contacts across them, including 84,380 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for infrastructure protection companies 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 September 20, 2026. Country and city lists for infrastructure protection companies 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 Sep 20, 2026 How this list was built

22,865Companies

641,241Contacts tracked

84,380Verified emails

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The 25 largest infrastructure protection companies worldwide

Ranked by team size

Top 25 of 22,865 company matches for infrastructure protection companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	G4s	Exact match	London, United KingdomHQ recorded Sep 20, 2026	10001+	79,699 contacts →
	Exact match “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Allied Universal	Exact match	Irvine, CA, United StatesHQ recorded Sep 20, 2026	10001+	62,804 contacts →
	Exact match “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Prosegur	Exact match	Madrid, SpainHQ recorded Sep 20, 2026	10001+	40,747 contacts →
	Exact match “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Securitas Security Services Usa, INC	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 20, 2026	10001+	38,634 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Securitas Group	Exact match	Stockholm, SwedenHQ recorded Sep 20, 2026	10001+	6,335 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Chubb Fire & Security	Exact match	Staines, United KingdomHQ recorded Sep 20, 2026	10001+	6,169 contacts →
	Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Sep 20, 2026	10001+	5,707 contacts →
	Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	TYCO	Exact match	Cork, IrelandHQ recorded Sep 20, 2026	10001+	5,384 contacts →
	Exact match “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Axis Communications	Exact match	Lund, SwedenHQ recorded Sep 20, 2026	1,001-5,000	4,850 contacts →
	Exact match “Axis enables a smarter and safer world by creating solutions for improving security and business performance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Certis	Exact match	SingaporeHQ recorded Sep 20, 2026	10001+	4,610 contacts →
	Exact match “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Graber Sistemas DE Segurança	Exact match	Barueri, BrazilHQ recorded Sep 20, 2026	10001+	4,572 contacts →
	Exact match “A Graber atua de forma pioneira na prestação de serviços de segurança desde 1982, introduzindo o conceito de projetos integrados na área de segurança.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Securitas France	Exact match	Issy-les-moulineaux, FranceHQ recorded Sep 20, 2026	10001+	3,843 contacts →
	Exact match “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Sep 20, 2026	1,001-5,000	3,673 contacts →
	Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Sep 20, 2026	10001+	3,620 contacts →
	Exact match “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	U.S. Security Associates, INC	Exact match	Roswell, GA, United StatesHQ recorded Sep 20, 2026	10001+	3,592 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Fidelity Services Group	Exact match	South AfricaHQ recorded Sep 20, 2026	10001+	3,480 contacts →
	Exact match “Fidelity Services Group is Southern Africa’s largest integrated security solutions provider and the industry leader in protection innovation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Sicuritalia S.P.A	Exact match	Milano, ItalyHQ recorded Sep 20, 2026	10001+	3,387 contacts →
	Exact match “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Grupo GR	Exact match	São Paulo, BrazilHQ recorded Sep 20, 2026	10001+	2,772 contacts →
	Exact match “Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Automated Systems Design, INC	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 20, 2026	n/a	2,678 contacts →
	Exact match “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Security Segurança E Serviços	Exact match	São Paulo, BrazilHQ recorded Sep 20, 2026	5,001-10,000	2,165 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Pronet Security Services	Exact match	Istanbul, TürkiyeHQ recorded Sep 20, 2026	1,001-5,000	2,126 contacts →
	Exact match “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Securitas Turkey	Exact match	Ankara, TürkiyeHQ recorded Sep 20, 2026	10001+	2,057 contacts →
	Exact match “Securitas, 44 ülkede, 350 bin çalışanı ile yaklaşık 90 yıldır dünyanın daha güvenli hale gelmesi için çalışıyor.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Everon	Exact match	Irving, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	2,045 contacts →
	Exact match “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 20, 2026	10001+	1,949 contacts →
	Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Wilson Security	Exact match	Essendon Fields, AustraliaHQ recorded Sep 20, 2026	5,001-10,000	1,813 contacts →
	Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure protection companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 22,865 infrastructure protection companies worldwide

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Infrastructure protection companies worldwide at a glance

As of Sep 20, 2026

13.2%Verified-email coverage

28.0Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

9,818

11-50

7,990

51-200

2,949

201-500

927

501-1,000

428

1,001-5,000

424

5,001-10,000

10001+

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 infrastructure protection companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “infrastructure protection companies” 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 84,380 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 20, 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.

Infrastructure protection companies by location

85 lists · largest first

Every Infrastructure protection 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 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 “infrastructure protection companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure protection companies are there worldwide?

RevenueBase identified 22,865 company matches for infrastructure protection companies worldwide 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?

G4s tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most infrastructure protection companies?

The United States leads with 3,551 companies, followed by Brazil (1,613) and the United Kingdom (1,470). Every infrastructure protection companies list by country and city is linked on this page.

Which city has the most infrastructure protection companies?

Sao Paulo leads with 335 company records, followed by London (256) and Dubai (180).

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 84,380 professional contacts with verified work emails tracked across these 22,865 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 20, 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.