Company lists · Data refreshed November 2026
Top 25 Critical infrastructure security companies worldwide
RevenueBase identified 8,723 company matches for critical infrastructure security companies worldwide as of November 2026 and tracks 166,148 professional contacts across them, including 42,412 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for critical infrastructure security 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 November 5, 2026. Country and city lists for critical infrastructure security 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.
The 25 largest critical infrastructure security companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,149 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 3,977 contacts → | ||||
Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 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 5, 2026 · View company records in RevenueBase | |||||
| 4 | 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 5, 2026 · View company records in RevenueBase | |||||
| 5 | 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 5, 2026 · View company records in RevenueBase | |||||
| 6 | 1,346 contacts → | ||||
Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 1,203 contacts → | ||||
Exact match “SOS Security is a known innovator and leader in the security and protective services industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 1,192 contacts → | ||||
Exact match “OPSWAT protects critical infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 1,186 contacts → | ||||
Exact match “Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 1,159 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 1,142 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 1,091 contacts → | ||||
Exact match “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 895 contacts → | ||||
Exact match “Omega Risk Solutions offers advanced, integrated security solutions based on a thorough understanding of its clients’ requirements in order to present them with innovative and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 859 contacts → | ||||
Exact match “Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 779 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 733 contacts → | ||||
Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 733 contacts → | ||||
Exact match “With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 732 contacts → | ||||
Exact match “A10 Networks provides security and infrastructure solutions for on-premises, hybrid cloud, and edge-cloud environments.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 729 contacts → | ||||
Exact match “We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 687 contacts → | ||||
Exact match “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 680 contacts → | ||||
Exact match “secunet – We are the Guardians of Europe's Digital Freedom.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 680 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 677 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 676 contacts → | ||||
Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 670 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 · Nov 5, 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 “critical infrastructure security 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 8,723 critical infrastructure security companies worldwide
See the full list, filter by size, metro and specialty, and access 42,412 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Critical infrastructure security companies worldwide at a glance
As of Nov 5, 2026Companies by employee count
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 companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “critical infrastructure security 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 42,412 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 5, 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 companies by location
67 lists · largest firstEvery Critical infrastructure security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Critical infrastructure security companies based in the United States2,025
- Critical infrastructure security companies based in India643
- Critical infrastructure security companies based in the United Kingdom521
- Critical infrastructure security companies based in Brazil278
- Critical infrastructure security companies based in Australia273
- Critical infrastructure security companies based in France270
- Critical infrastructure security companies based in Canada240
- Critical infrastructure security companies based in Germany223
- Critical infrastructure security companies based in the United Arab Emirates179
- Critical infrastructure security companies based in Italy143
- Critical infrastructure security companies based in the Netherlands140
- Critical infrastructure security companies based in Mexico139
- Critical infrastructure security companies based in Spain137
- Critical infrastructure security companies based in South Africa109
- Critical infrastructure security companies based in Israel101
- Critical infrastructure security companies based in Türkiye89
- Critical infrastructure security companies based in Saudi Arabia87
- Critical infrastructure security companies based in Poland76
- Critical infrastructure security companies based in Belgium74
- Critical infrastructure security companies based in Chile70
- Critical infrastructure security companies based in Sweden67
- Critical infrastructure security companies based in Colombia63
- Critical infrastructure security companies based in Argentina62
- Critical infrastructure security companies based in Switzerland61
- Critical infrastructure security companies based in Indonesia45
- Critical infrastructure security companies based in Romania40
- Critical infrastructure security companies based in Austria34
- Critical infrastructure security companies based in New Zealand33
- Critical infrastructure security companies based in Denmark32
- Critical infrastructure security companies based in Czechia31
- Critical infrastructure security companies based in Egypt31
- Critical infrastructure security companies based in Ukraine30
- Critical infrastructure security companies based in the Philippines29
- Critical infrastructure security companies based in Malaysia28
- Critical infrastructure security companies based in Qatar25
Cities
- Critical infrastructure security companies based in London, United Kingdom188
- Critical infrastructure security companies based in Dubai, United Arab Emirates104
- Critical infrastructure security companies based in Sao Paulo, Brazil92
- Critical infrastructure security companies based in Paris, France85
- Critical infrastructure security companies based in Bangalore, India73
- Critical infrastructure security companies based in Hyderabad, India63
- Critical infrastructure security companies based in New York, United States57
- Critical infrastructure security companies based in Riyadh, Saudi Arabia54
- Critical infrastructure security companies based in Sydney, Australia53
- Critical infrastructure security companies based in Pune, India52
- Critical infrastructure security companies based in Houston, United States51
- Critical infrastructure security companies based in Toronto, Canada51
- Critical infrastructure security companies based in Melbourne, Australia49
- Critical infrastructure security companies based in New Delhi, India46
- Critical infrastructure security companies based in Mumbai, India44
- Critical infrastructure security companies based in Washington, United States42
- Critical infrastructure security companies based in Madrid, Spain41
- Critical infrastructure security companies based in Dallas, United States35
- Critical infrastructure security companies based in Miami, United States33
- Critical infrastructure security companies based in Montreal, Canada32
- Critical infrastructure security companies based in Tampa, United States32
- Critical infrastructure security companies based in Austin, United States30
- Critical infrastructure security companies based in Chennai, India30
- Critical infrastructure security companies based in Chicago, United States30
- Critical infrastructure security companies based in Mexico City, Mexico30
- Critical infrastructure security companies based in Warsaw, Poland29
- Critical infrastructure security companies based in Buenos Aires, Argentina28
- Critical infrastructure security companies based in Columbia, United States28
- Critical infrastructure security companies based in Istanbul, Türkiye27
- Critical infrastructure security companies based in Tel Aviv, Israel27
- Critical infrastructure security companies based in Santiago, Chile26
- Critical infrastructure security companies based in Rome, Italy25
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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many critical infrastructure security companies are there worldwide?
RevenueBase identified 8,723 company matches for critical infrastructure security companies 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?
Private Sector 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 companies?
The United States leads with 2,025 companies, followed by India (643) and the United Kingdom (521). Every critical infrastructure security companies list by country and city is linked on this page.
Which city has the most critical infrastructure security companies?
London leads with 191 company records, followed by Dubai (105) and Sao Paulo (92).
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 42,412 professional contacts with verified work emails tracked across these 8,723 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 8,723 critical infrastructure security companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 critical infrastructure security companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 8,723 matching company records for critical infrastructure security companies worldwide, with 166,148 tracked contacts and 42,412 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 critical infrastructure security companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Private Sectorlockervault.comHQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 13,149 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 |  Orange Cyberdefenseorangecyberdefense.comHQ: Nanterre, FranceReported employees: 1,001-5,000 | Nanterre, France | 1,001-5,000 | Exact match | 3,977 contacts → |
“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sicuritalia S.P.Asicuritalia.itHQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 3,593 contacts → |
“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  OPTIVoptiv.comHQ: Leawood, KS, United StatesReported employees: 1,001-5,000 | Leawood, KS, United States | 1,001-5,000 | Exact match | 2,171 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Paragon Systems INCparasys.comHQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,928 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Guidepoint Securityguidepointsecurity.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,346 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  SOS Security LLCsossecurity.comHQ: Parsippany, VA, United StatesReported employees: 10001+ | Parsippany, VA, United States | 10001+ | Exact match | 1,203 contacts → |
“SOS Security is a known innovator and leader in the security and protective services industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Opswatopswat.comHQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 1,192 contacts → |
“OPSWAT protects critical infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,186 contacts → |
“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Seguritechseguritech.comHQ: Mexico City, MexicoReported employees: 1,001-5,000 | Mexico City, Mexico | 1,001-5,000 | Exact match | 1,159 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Onet Sécuritéonet.frHQ: Marseille, FranceReported employees: 10001+ | Marseille, France | 10001+ | Exact match | 1,142 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Irdetoirdeto.comHQ: Hoofddorp, MN, NetherlandsReported employees: 1,001-5,000 | Hoofddorp, MN, Netherlands | 1,001-5,000 | Exact match | 1,091 contacts → |
“Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Omega Risk Solutionsomegasol.comHQ: Grand Baie, MauritiusReported employees: 5,001-10,000 | Grand Baie, Mauritius | 5,001-10,000 | Exact match | 895 contacts → |
“Omega Risk Solutions offers advanced, integrated security solutions based on a thorough understanding of its clients’ requirements in order to present them with innovative and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Securitas Norgesecuritas.noHQ: Oslo, NorwayReported employees: 5,001-10,000 | Oslo, Norway | 5,001-10,000 | Exact match | 859 contacts → |
“Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Clarotyclaroty.comHQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 779 contacts → |
“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Trustwave, A Levelblue Companylevelblue.comHQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 733 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Softcell Technologies Global Pvt. LTDsoftcell.comHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 733 contacts → |
“With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  A10 Networks, INCa10networks.comHQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 732 contacts → |
“A10 Networks provides security and infrastructure solutions for on-premises, hybrid cloud, and edge-cloud environments.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  S2grupos2grupo.esHQ: Valencia, SpainReported employees: 501-1,000 | Valencia, Spain | 501-1,000 | Exact match | 729 contacts → |
“We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  I-Tracingi-tracing.comHQ: Courbevoie, FranceReported employees: 1,001-5,000 | Courbevoie, France | 1,001-5,000 | Exact match | 687 contacts → |
“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Secunet Security Networks AGsecunet.comHQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 680 contacts → |
“secunet – We are the Guardians of Europe's Digital Freedom.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Everfoxeverfox.comHQ: Herndon, United StatesReported employees: 1,001-5,000 | Herndon, United States | 1,001-5,000 | Exact match | 680 contacts → |
“Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Halogen Grouphalogen-group.comHQ: Lagos, NigeriaReported employees: 501-1,000 | Lagos, Nigeria | 501-1,000 | Exact match | 677 contacts → |
“Halogen Group formerly known as Halogen Security Company Limited is the leading Security Solutions Provider in West Africa.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Telos Corporationtelos.comHQ: Ashburn, VA, United StatesReported employees: 501-1,000 | Ashburn, VA, United States | 501-1,000 | Exact match | 676 contacts → |
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Dragos, INCdragos.comHQ: Hanover, MD, United StatesReported employees: 501-1,000 | Hanover, MD, United States | 501-1,000 | Exact match | 670 contacts → |
“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,723 company matches
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Critical infrastructure security companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,701 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,723 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Critical infrastructure security companies by location
67 lists · largest firstEvery Critical infrastructure security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Critical infrastructure security companies based in the United States2,025
- Critical infrastructure security companies based in India643
- Critical infrastructure security companies based in the United Kingdom521
- Critical infrastructure security companies based in Brazil278
- Critical infrastructure security companies based in Australia273
- Critical infrastructure security companies based in France270
- Critical infrastructure security companies based in Canada240
- Critical infrastructure security companies based in Germany223
- Critical infrastructure security companies based in the United Arab Emirates179
- Critical infrastructure security companies based in Italy143
- Critical infrastructure security companies based in the Netherlands140
- Critical infrastructure security companies based in Mexico139
- Critical infrastructure security companies based in Spain137
- Critical infrastructure security companies based in South Africa109
- Critical infrastructure security companies based in Israel101
- Critical infrastructure security companies based in Türkiye89
- Critical infrastructure security companies based in Saudi Arabia87
- Critical infrastructure security companies based in Poland76
- Critical infrastructure security companies based in Belgium74
- Critical infrastructure security companies based in Chile70
- Critical infrastructure security companies based in Sweden67
- Critical infrastructure security companies based in Colombia63
- Critical infrastructure security companies based in Argentina62
- Critical infrastructure security companies based in Switzerland61
- Critical infrastructure security companies based in Indonesia45
- Critical infrastructure security companies based in Romania40
- Critical infrastructure security companies based in Austria34
- Critical infrastructure security companies based in New Zealand33
- Critical infrastructure security companies based in Denmark32
- Critical infrastructure security companies based in Czechia31
- Critical infrastructure security companies based in Egypt31
- Critical infrastructure security companies based in Ukraine30
- Critical infrastructure security companies based in the Philippines29
- Critical infrastructure security companies based in Malaysia28
- Critical infrastructure security companies based in Qatar25
Cities
- Critical infrastructure security companies based in London, United Kingdom188
- Critical infrastructure security companies based in Dubai, United Arab Emirates104
- Critical infrastructure security companies based in Sao Paulo, Brazil92
- Critical infrastructure security companies based in Paris, France85
- Critical infrastructure security companies based in Bangalore, India73
- Critical infrastructure security companies based in Hyderabad, India63
- Critical infrastructure security companies based in New York, United States57
- Critical infrastructure security companies based in Riyadh, Saudi Arabia54
- Critical infrastructure security companies based in Sydney, Australia53
- Critical infrastructure security companies based in Pune, India52
- Critical infrastructure security companies based in Houston, United States51
- Critical infrastructure security companies based in Toronto, Canada51
- Critical infrastructure security companies based in Melbourne, Australia49
- Critical infrastructure security companies based in New Delhi, India46
- Critical infrastructure security companies based in Mumbai, India44
- Critical infrastructure security companies based in Washington, United States42
- Critical infrastructure security companies based in Madrid, Spain41
- Critical infrastructure security companies based in Dallas, United States35
- Critical infrastructure security companies based in Miami, United States33
- Critical infrastructure security companies based in Montreal, Canada32
- Critical infrastructure security companies based in Tampa, United States32
- Critical infrastructure security companies based in Austin, United States30
- Critical infrastructure security companies based in Chennai, India30
- Critical infrastructure security companies based in Chicago, United States30
- Critical infrastructure security companies based in Mexico City, Mexico30
- Critical infrastructure security companies based in Warsaw, Poland29
- Critical infrastructure security companies based in Buenos Aires, Argentina28
- Critical infrastructure security companies based in Columbia, United States28
- Critical infrastructure security companies based in Istanbul, Türkiye27
- Critical infrastructure security companies based in Tel Aviv, Israel27
- Critical infrastructure security companies based in Santiago, Chile26
- Critical infrastructure security companies based in Rome, Italy25
Questions about this company list
What does Exact match mean for critical infrastructure security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many critical infrastructure security companies did RevenueBase find worldwide?
The saved snapshot records 8,723 matching company records, 166,148 tracked contacts and 42,412 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 critical infrastructure security companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/critical-infrastructure-security-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 critical infrastructure security companies worldwide
RevenueBase records 8,723 matching company records for critical infrastructure security companies worldwide, with 166,148 tracked contacts and 42,412 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 critical infrastructure security companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Private Sectorlockervault.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 13,149 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 | Orange Cyberdefenseorangecyberdefense.com HQ: Nanterre, FranceReported employees: 1,001-5,000 | Nanterre, France | 1,001-5,000 | Exact match | 3,977 contacts → |
“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sicuritalia S.P.Asicuritalia.it HQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 3,593 contacts → |
“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | OPTIVoptiv.com HQ: Leawood, KS, United StatesReported employees: 1,001-5,000 | Leawood, KS, United States | 1,001-5,000 | Exact match | 2,171 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Paragon Systems INCparasys.com HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,928 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Guidepoint Securityguidepointsecurity.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,346 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SOS Security LLCsossecurity.com HQ: Parsippany, VA, United StatesReported employees: 10001+ | Parsippany, VA, United States | 10001+ | Exact match | 1,203 contacts → |
“SOS Security is a known innovator and leader in the security and protective services industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Opswatopswat.com HQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 1,192 contacts → |
“OPSWAT protects critical infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,186 contacts → |
“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Seguritechseguritech.com HQ: Mexico City, MexicoReported employees: 1,001-5,000 | Mexico City, Mexico | 1,001-5,000 | Exact match | 1,159 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Onet Sécuritéonet.fr HQ: Marseille, FranceReported employees: 10001+ | Marseille, France | 10001+ | Exact match | 1,142 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Irdetoirdeto.com HQ: Hoofddorp, MN, NetherlandsReported employees: 1,001-5,000 | Hoofddorp, MN, Netherlands | 1,001-5,000 | Exact match | 1,091 contacts → |
“Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Omega Risk Solutionsomegasol.com HQ: Grand Baie, MauritiusReported employees: 5,001-10,000 | Grand Baie, Mauritius | 5,001-10,000 | Exact match | 895 contacts → |
“Omega Risk Solutions offers advanced, integrated security solutions based on a thorough understanding of its clients’ requirements in order to present them with innovative and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Securitas Norgesecuritas.no HQ: Oslo, NorwayReported employees: 5,001-10,000 | Oslo, Norway | 5,001-10,000 | Exact match | 859 contacts → |
“Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Clarotyclaroty.com HQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 779 contacts → |
“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Trustwave, A Levelblue Companylevelblue.com HQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 733 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Softcell Technologies Global Pvt. LTDsoftcell.com HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 733 contacts → |
“With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | A10 Networks, INCa10networks.com HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 732 contacts → |
“A10 Networks provides security and infrastructure solutions for on-premises, hybrid cloud, and edge-cloud environments.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | S2grupos2grupo.es HQ: Valencia, SpainReported employees: 501-1,000 | Valencia, Spain | 501-1,000 | Exact match | 729 contacts → |
“We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | I-Tracingi-tracing.com HQ: Courbevoie, FranceReported employees: 1,001-5,000 | Courbevoie, France | 1,001-5,000 | Exact match | 687 contacts → |
“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Secunet Security Networks AGsecunet.com HQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 680 contacts → |
“secunet – We are the Guardians of Europe's Digital Freedom.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Everfoxeverfox.com HQ: Herndon, United StatesReported employees: 1,001-5,000 | Herndon, United States | 1,001-5,000 | Exact match | 680 contacts → |
“Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Halogen Grouphalogen-group.com HQ: Lagos, NigeriaReported employees: 501-1,000 | Lagos, Nigeria | 501-1,000 | Exact match | 677 contacts → |
“Halogen Group formerly known as Halogen Security Company Limited is the leading Security Solutions Provider in West Africa.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Telos Corporationtelos.com HQ: Ashburn, VA, United StatesReported employees: 501-1,000 | Ashburn, VA, United States | 501-1,000 | Exact match | 676 contacts → |
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Dragos, INCdragos.com HQ: Hanover, MD, United StatesReported employees: 501-1,000 | Hanover, MD, United States | 501-1,000 | Exact match | 670 contacts → |
“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,723 company matches
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Critical infrastructure security companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,701 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,723 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Critical infrastructure security companies by location
67 lists · largest firstEvery Critical infrastructure security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Critical infrastructure security companies based in the United States2,025
- Critical infrastructure security companies based in India643
- Critical infrastructure security companies based in the United Kingdom521
- Critical infrastructure security companies based in Brazil278
- Critical infrastructure security companies based in Australia273
- Critical infrastructure security companies based in France270
- Critical infrastructure security companies based in Canada240
- Critical infrastructure security companies based in Germany223
- Critical infrastructure security companies based in the United Arab Emirates179
- Critical infrastructure security companies based in Italy143
- Critical infrastructure security companies based in the Netherlands140
- Critical infrastructure security companies based in Mexico139
- Critical infrastructure security companies based in Spain137
- Critical infrastructure security companies based in South Africa109
- Critical infrastructure security companies based in Israel101
- Critical infrastructure security companies based in Türkiye89
- Critical infrastructure security companies based in Saudi Arabia87
- Critical infrastructure security companies based in Poland76
- Critical infrastructure security companies based in Belgium74
- Critical infrastructure security companies based in Chile70
- Critical infrastructure security companies based in Sweden67
- Critical infrastructure security companies based in Colombia63
- Critical infrastructure security companies based in Argentina62
- Critical infrastructure security companies based in Switzerland61
- Critical infrastructure security companies based in Indonesia45
- Critical infrastructure security companies based in Romania40
- Critical infrastructure security companies based in Austria34
- Critical infrastructure security companies based in New Zealand33
- Critical infrastructure security companies based in Denmark32
- Critical infrastructure security companies based in Czechia31
- Critical infrastructure security companies based in Egypt31
- Critical infrastructure security companies based in Ukraine30
- Critical infrastructure security companies based in the Philippines29
- Critical infrastructure security companies based in Malaysia28
- Critical infrastructure security companies based in Qatar25
Cities
- Critical infrastructure security companies based in London, United Kingdom188
- Critical infrastructure security companies based in Dubai, United Arab Emirates104
- Critical infrastructure security companies based in Sao Paulo, Brazil92
- Critical infrastructure security companies based in Paris, France85
- Critical infrastructure security companies based in Bangalore, India73
- Critical infrastructure security companies based in Hyderabad, India63
- Critical infrastructure security companies based in New York, United States57
- Critical infrastructure security companies based in Riyadh, Saudi Arabia54
- Critical infrastructure security companies based in Sydney, Australia53
- Critical infrastructure security companies based in Pune, India52
- Critical infrastructure security companies based in Houston, United States51
- Critical infrastructure security companies based in Toronto, Canada51
- Critical infrastructure security companies based in Melbourne, Australia49
- Critical infrastructure security companies based in New Delhi, India46
- Critical infrastructure security companies based in Mumbai, India44
- Critical infrastructure security companies based in Washington, United States42
- Critical infrastructure security companies based in Madrid, Spain41
- Critical infrastructure security companies based in Dallas, United States35
- Critical infrastructure security companies based in Miami, United States33
- Critical infrastructure security companies based in Montreal, Canada32
- Critical infrastructure security companies based in Tampa, United States32
- Critical infrastructure security companies based in Austin, United States30
- Critical infrastructure security companies based in Chennai, India30
- Critical infrastructure security companies based in Chicago, United States30
- Critical infrastructure security companies based in Mexico City, Mexico30
- Critical infrastructure security companies based in Warsaw, Poland29
- Critical infrastructure security companies based in Buenos Aires, Argentina28
- Critical infrastructure security companies based in Columbia, United States28
- Critical infrastructure security companies based in Istanbul, Türkiye27
- Critical infrastructure security companies based in Tel Aviv, Israel27
- Critical infrastructure security companies based in Santiago, Chile26
- Critical infrastructure security companies based in Rome, Italy25
Questions about this company list
What does Exact match mean for critical infrastructure security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many critical infrastructure security companies did RevenueBase find worldwide?
The saved snapshot records 8,723 matching company records, 166,148 tracked contacts and 42,412 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 critical infrastructure security companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/critical-infrastructure-security-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗