Company lists · Data refreshed September 2026

Top 25 Critical infrastructure security integrators worldwide

RevenueBase identified 11,496 company matches for critical infrastructure security integrators worldwide as of September 2026 and tracks 202,666 professional contacts across them, including 46,038 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for critical infrastructure security integrators 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 27, 2026. Country and city lists for critical infrastructure security integrators 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 27, 2026 How this list was built
11,496Companies
202,666Contacts tracked
46,038Verified emails
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The 25 largest critical infrastructure security integrators worldwide

Ranked by team size
Top 25 of 11,496 company matches for critical infrastructure security integrators worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchStockholm, SwedenHQ recorded Sep 27, 202610001+6,335 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchHoffman Estates, IL, United StatesHQ recorded Sep 27, 202610001+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 27, 2026 · View company records in RevenueBase
3Exact matchSingaporeHQ recorded Sep 27, 202610001+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 27, 2026 · View company records in RevenueBase
4Exact matchIssy-les-moulineaux, FranceHQ recorded Sep 27, 202610001+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 27, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 27, 202610001+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 27, 2026 · View company records in RevenueBase
6Exact matchMilano, ItalyHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
7Exact matchTysons, VA, United StatesHQ recorded Sep 27, 20265,001-10,0002,761 contacts →

Exact match

“M.C.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchAlpharetta, GA, United StatesHQ recorded Sep 27, 2026n/a2,678 contacts →

Exact match

“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSão Paulo, BrazilHQ recorded Sep 27, 20265,001-10,0001,361 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 · Sep 27, 2026 · View company records in RevenueBase
10Exact matchWoodmead, South AfricaHQ recorded Sep 27, 202610001+1,340 contacts →

Exact match

“At Imvula Quality Protection, we don’t just provide security, we create peace of mind.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchCali, ColombiaHQ recorded Sep 27, 202610001+1,328 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 · Sep 27, 2026 · View company records in RevenueBase
12Exact matchCiudad De Mexico, MexicoHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
13Exact matchMarseille, FranceHQ recorded Sep 27, 202610001+1,007 contacts →

Exact match

“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchBangalore, IndiaHQ recorded Sep 27, 20261,001-5,000943 contacts →

Exact match

“Value Point Systems, one of the leading Digital Systems & Services Integrator company in South Asia.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchBangalore, IndiaHQ recorded Sep 27, 202610001+937 contacts →

Exact match

“Founded in 1989, Terrier Security Services is a leading integrated security provider in India, with over guards and 2,480 secured sites.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchMagdalena Del Mar, PeruHQ recorded Sep 27, 20261,001-5,000891 contacts →

Exact match

“Securitas es socio líder en soluciones de protección inteligente.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchWest Palm Beach, FL, United StatesHQ recorded Sep 27, 2026501-1,000849 contacts →

Exact match

“Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchOslo, NorwayHQ recorded Sep 27, 20265,001-10,000792 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026501-1,000725 contacts →

Exact match

“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchSpainHQ recorded Sep 27, 20261,001-5,000659 contacts →

Exact match

“comienzos de 1989 se funda SABICO SEGURIDAD S.A, estando inscrita en el Registro de Empresas de Seguridad con el nº 1731.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchHerndon, United StatesHQ recorded Sep 27, 20261,001-5,000636 contacts →

Exact match

“Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMiami, FL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
23Exact matchHanover, MD, United StatesHQ recorded Sep 27, 2026501-1,000551 contacts →

Exact match

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLissieu, FranceHQ recorded Sep 27, 20261,001-5,000538 contacts →

Exact match

“Byblos Group est un groupe indépendant spécialisé dans la protection des personnes, des biens et des données, avec une approche sur mesure, fondée sur l’excellence opérationnelle…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNairobi, KenyaHQ recorded Sep 27, 20261,001-5,000533 contacts →

Exact match

“BM Security was founded by the late senior assistant commissioner of Police Bob Morgan in 1984.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 11,496 critical infrastructure security integrators worldwide

See the full list, filter by size, metro and specialty, and access 46,038 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Critical infrastructure security integrators worldwide at a glance

As of Sep 27, 2026
22.7%Verified-email coverage
17.6Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Sao Paulo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
4,844
11-50
4,457
51-200
1,436
201-500
397
501-1,000
135
1,001-5,000
133
5,001-10,000
20
10001+
30

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 security integrators are linked below.
What qualifies
Company records worldwide whose business descriptions match “critical infrastructure security integrators” 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 46,038 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 27, 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 security integrators by location

65 lists · largest first

Every Critical infrastructure security integrators 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 security integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many critical infrastructure security integrators are there worldwide?

RevenueBase identified 11,496 company matches for critical infrastructure security integrators 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?

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

Which country has the most critical infrastructure security integrators?

The United States leads with 2,165 companies, followed by the United Kingdom (682) and India (536). Every critical infrastructure security integrators list by country and city is linked on this page.

Which city has the most critical infrastructure security integrators?

Sao Paulo leads with 136 company records, followed by London (134) and Dubai (101).

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 46,038 professional contacts with verified work emails tracked across these 11,496 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 27, 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.