Company lists · Data refreshed September 2026

Top 25 Critical infrastructure protection services worldwide

RevenueBase identified 6,333 company matches for critical infrastructure protection services worldwide as of September 2026 and tracks 91,639 professional contacts across them, including 16,457 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for critical 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 September 19, 2026. Country and city lists for critical 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 Sep 19, 2026 How this list was built
6,333Companies
91,639Contacts tracked
16,457Verified emails
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The 25 largest critical infrastructure protection services worldwide

Ranked by team size
Top 25 of 6,333 company matches for critical infrastructure protection services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchMilano, ItalyHQ recorded Sep 19, 202610001+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 19, 2026 · View company records in RevenueBase
2Exact matchAnnapolis, MD, United StatesHQ recorded Sep 19, 20261,001-5,0002,025 contacts →

Exact match

“Crisis24, a GardaWorld company, is widely regarded as the leading integrated risk management, crisis response, consulting, and global protective solutions firm, serving the…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchHerndon, VA, United StatesHQ recorded Sep 19, 202610001+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 19, 2026 · View company records in RevenueBase
4Exact matchBp12936, FranceHQ recorded Sep 19, 202610001+1,455 contacts →

Exact match

“ICTS Europe is Europe’s leading security specialist.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchBlagnac, FranceHQ recorded Sep 19, 20261,001-5,0001,431 contacts →

Exact match

“Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchDubai, United Arab EmiratesHQ recorded Sep 19, 20265,001-10,0001,374 contacts →

Exact match

“First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchSao Paulo, BrazilHQ recorded Sep 19, 20261,001-5,0001,179 contacts →

Exact match

“Somos a maior empresa de Emergency Response em infraestruturas críticas do Brasil.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchMorrisville, NC, United StatesHQ recorded Sep 19, 2026501-1,0001,175 contacts →

Exact match

“IEM is a professional services firm dedicated to building a safe, secure, and resilient world.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchParsippany, NJ, United StatesHQ recorded Sep 19, 202610001+1,151 contacts →

Exact match

“SOS Security is a known innovator and leader in the security and protective services industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPearl River, NY, United StatesHQ recorded Sep 19, 20265,001-10,0001,050 contacts →

Exact match

“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchCiudad De Mexico, MexicoHQ recorded Sep 19, 20261,001-5,0001,041 contacts →

Exact match

“A lo largo de 30 años, hemos incursionado y evolucionado en distintas áreas atendiendo en el continente americano a clientes privados, corporativos y sector gobierno.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchSpring, TX, United StatesHQ recorded Sep 19, 20261,001-5,000875 contacts →

Exact match

“ABSG Consulting Inc.(ABS Consulting) is part of ABS Group of Companies, a global leader in safety and risk management for critical infrastructure worldwide and a wholly owned…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchOslo, NorwayHQ recorded Sep 19, 20265,001-10,000792 contacts →

Exact match

“Securitas AS er det største og eldste sikkerhetsselskapet i Norge.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Sep 19, 20261,001-5,000781 contacts →

Exact match

“AEGIS is a London based, privately owned, British security and risk management company with overseas offices in Afghanistan, Bahrain, Iraq and the USA.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchLagos, NigeriaHQ recorded Sep 19, 2026501-1,000642 contacts →

Exact match

“Halogen Group formerly known as Halogen Security Company Limited is the leading Security Solutions Provider in West Africa.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchMontevideo, UruguayHQ recorded Sep 19, 20261,001-5,000612 contacts →

Exact match

“Securitas es el principal socio de servicios de protección inteligente del mundo.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202610001+571 contacts →

Exact match

“Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchMiami, FL, United StatesHQ recorded Sep 19, 20261,001-5,000553 contacts →

Exact match

“Security Alliance is a highly experienced provider of security solutions for private and business environments.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchRiyadh, Saudi ArabiaHQ recorded Sep 19, 2026201-500493 contacts →

Exact match

“World-class leading edge cyber capabilities to enable and protect economic and physical critical infrastructure and government services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchStrongsville, OH, United StatesHQ recorded Sep 19, 202651-200467 contacts →

Exact match

“AFIMAC Global: Trusted Crisis Management & Business Continuity Partner.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchMclean, VA, United StatesHQ recorded Sep 19, 20261,001-5,000447 contacts →

Exact match

“At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchDurban, South AfricaHQ recorded Sep 19, 20265,001-10,000432 contacts →

Exact match

“Enforce Security is one of South Africa’s most trusted specialist in the provision of integrated risk management solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchUtica, NY, United StatesHQ recorded Sep 19, 2026501-1,000393 contacts →

Exact match

“The impact of disasters-natural or otherwise-can leave even the most robust entities vulnerable, causing uncertainty over their future.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchJakarta, IndonesiaHQ recorded Sep 19, 2026201-500388 contacts →

Exact match

“ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Sep 19, 20261,001-5,000379 contacts →

Exact match

“Created in 2007, Amarante is one of Europe’s leading security providers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 6,333 critical infrastructure protection services worldwide

See the full list, filter by size, metro and specialty, and access 16,457 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Critical infrastructure protection services worldwide at a glance

As of Sep 19, 2026
18.0%Verified-email coverage
14.5Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
3,592
11-50
1,685
51-200
616
201-500
211
501-1,000
91
1,001-5,000
92
5,001-10,000
20
10001+
15

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 critical infrastructure protection services are linked below.
What qualifies
Company records worldwide whose business descriptions match “critical 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 16,457 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 19, 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.

Critical infrastructure protection services by location

28 lists · largest first

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

How many critical infrastructure protection services are there worldwide?

RevenueBase identified 6,333 company matches for critical infrastructure protection services 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?

Sicuritalia S.P.A tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most critical infrastructure protection services?

The United States leads with 1,803 companies, followed by the United Kingdom (426) and France (261). Every critical infrastructure protection services list by country and city is linked on this page.

Which city has the most critical infrastructure protection services?

London leads with 153 company records, followed by Sao Paulo (69) and Paris (67).

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 16,457 professional contacts with verified work emails tracked across these 6,333 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 19, 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.