Company lists · Data refreshed November 2026

Top 25 Infrastructure protection services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 16,797 companies tracked

RevenueBase identified 16,797 company matches for infrastructure protection services worldwide as of November 2026 and tracks 480,784 professional contacts across them, including 78,955 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for infrastructure protection 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 infrastructure protection 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

16,797Companies

480,784Contacts tracked

78,955Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest infrastructure protection services worldwide

Ranked by team size

Top 25 of 16,797 company matches for infrastructure protection 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Allied Universal	Exact match	Irvine, IL, United StatesHQ recorded Nov 6, 2026	10001+	66,203 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 · Nov 6, 2026 · View company records in RevenueBase
2	Securitas Security Services Usa, INC	Exact match	Parsippany, MI, United StatesHQ recorded Nov 6, 2026	10001+	40,551 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Private Sector	Exact match	United StatesHQ recorded Nov 6, 2026	n/a	13,149 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Securitas Group	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	10001+	7,033 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Nov 6, 2026	10001+	6,031 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 · Nov 6, 2026 · View company records in RevenueBase
6	Segurpro	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	10001+	5,254 contacts →
	Exact match “A SegurPro é o próximo passo em segurança privada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Certis	Exact match	SingaporeHQ recorded Nov 6, 2026	10001+	5,040 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 · Nov 6, 2026 · View company records in RevenueBase
8	U.S. Security Associates, INC	Exact match	Roswell, UT, United StatesHQ recorded Nov 6, 2026	10001+	4,263 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Securitas France	Exact match	Issy-les-moulineaux, FranceHQ recorded Nov 6, 2026	10001+	4,112 contacts →
	Exact match “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Unemployed	Exact match	St. Petersburg, FL, United StatesHQ recorded Nov 6, 2026	n/a	4,040 contacts →
	Exact match “Excelsior Defense is a security and investigations company based out of St.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Nov 6, 2026	1,001-5,000	3,977 contacts →
	Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Sicuritalia S.P.A	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	10001+	3,593 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 · Nov 6, 2026 · View company records in RevenueBase
13	Securitas Sverige AB	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	5,001-10,000	3,053 contacts →
	Exact match “Securitas is a global knowledge leader in security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Security Segurança E Serviços	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	5,001-10,000	2,369 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 · Nov 6, 2026 · View company records in RevenueBase
15	Everon	Exact match	Irving, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,178 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 · Nov 6, 2026 · View company records in RevenueBase
16	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,171 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Wilson Security	Exact match	Essendon Fields, AustraliaHQ recorded Nov 6, 2026	5,001-10,000	1,964 contacts →
	Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	10001+	1,928 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 · Nov 6, 2026 · View company records in RevenueBase
19	HSS	Exact match	Denver, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,811 contacts →
	Exact match “HSS is now Tarian!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Securitas Canada	Exact match	North York, ON, CanadaHQ recorded Nov 6, 2026	5,001-10,000	1,631 contacts →
	Exact match “Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Grupo Atlas DE Seguridad Integral	Exact match	Cali, ColombiaHQ recorded Nov 6, 2026	10001+	1,574 contacts →
	Exact match “Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Icts Europe	Exact match	Bp12936, FranceHQ recorded Nov 6, 2026	10001+	1,572 contacts →
	Exact match “ICTS Europe is Europe’s leading security specialist.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Guardsmark	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	1,562 contacts →
	Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Comando G8	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,548 contacts →
	Exact match “O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	1,514 contacts →
	Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Nov 6, 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 services”. 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 16,797 infrastructure protection services worldwide

See the full list, filter by size, metro and specialty, and access 78,955 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Infrastructure protection services worldwide at a glance

As of Nov 6, 2026

16.4%Verified-email coverage

28.6Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,290

11-50

5,502

51-200

2,269

201-500

771

501-1,000

353

1,001-5,000

374

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 services are linked below.
What qualifies: Company records worldwide whose business descriptions match “infrastructure protection 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 78,955 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.

Infrastructure protection services by location

125 lists · largest first

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

How many infrastructure protection services are there worldwide?

RevenueBase identified 16,797 company matches for infrastructure protection 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?

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

Which country has the most infrastructure protection services?

The United States leads with 3,845 companies, followed by the United Kingdom (1,064) and India (1,048). Every infrastructure protection services list by country and city is linked on this page.

Which city has the most infrastructure protection services?

London leads with 373 company records, followed by Sao Paulo (176) and Dubai (158).

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 78,955 professional contacts with verified work emails tracked across these 16,797 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.

Ready to reach these companies? Verified emails and direct dials for all 16,797 infrastructure protection services worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.