Company lists · Data refreshed November 2026
Top 25 Information security firms worldwide
RevenueBase identified 36,450 company matches for information security firms worldwide as of November 2026 and tracks 549,718 professional contacts across them, including 157,311 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for information security firms 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 information security firms 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 information security firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,414 contacts → | ||||
Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 13,149 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 11,878 contacts → | ||||
Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 5,283 contacts → | ||||
Exact match “Sophos, a global cybersecurity leader, defends more than organizations worldwide with Sophos Fusion, the industry's first and most complete AI-native cybersecurity defense system…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 3,355 contacts → | ||||
Exact match “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 3,342 contacts → | ||||
Exact match “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 3,248 contacts → | ||||
Exact match “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 3,053 contacts → | ||||
Exact match “Securitas is a global knowledge leader in security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 2,274 contacts → | ||||
Exact match “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 1,964 contacts → | ||||
Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 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 | |||||
| 15 | 1,901 contacts → | ||||
Exact match “ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 1,859 contacts → | ||||
Exact match “Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 1,770 contacts → | ||||
Exact match “BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 1,574 contacts → | ||||
Exact match “Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 1,562 contacts → | ||||
Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 1,515 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 1,514 contacts → | ||||
Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 1,465 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 1,460 contacts → | ||||
Exact match “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 1,449 contacts → | ||||
Exact match “See a different world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 1,413 contacts → | ||||
Exact match “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” 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 “information security firms”. 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 36,450 information security firms worldwide
See the full list, filter by size, metro and specialty, and access 157,311 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Information security firms 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 information security firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “information security firms” 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 157,311 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.
Information security firms by location
236 lists · largest firstEvery Information security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Information security firms based in the United States8,992
- Information security firms based in India2,581
- Information security firms based in the United Kingdom2,227
- Information security firms based in Brazil1,339
- Information security firms based in France1,180
- Information security firms based in Canada1,134
- Information security firms based in Germany1,123
- Information security firms based in Australia1,029
- Information security firms based in the Netherlands668
- Information security firms based in Spain567
- Information security firms based in Italy561
- Information security firms based in the United Arab Emirates495
- Information security firms based in Mexico460
- Information security firms based in South Africa410
- Information security firms based in Türkiye374
- Information security firms based in Switzerland338
- Information security firms based in Israel307
- Information security firms based in Poland276
- Information security firms based in Colombia270
- Information security firms based in Belgium261
- Information security firms based in Pakistan260
- Information security firms based in Sweden250
- Information security firms based in Chile246
- Information security firms based in Argentina231
- Information security firms based in Nigeria228
- Information security firms based in Saudi Arabia227
- Information security firms based in Singapore200
- Information security firms based in Indonesia197
- Information security firms based in Austria144
- Information security firms based in Malaysia141
- Information security firms based in Kenya139
- Information security firms based in China137
- Information security firms based in Romania133
- Information security firms based in Portugal132
- Information security firms based in New Zealand129
- Information security firms based in Peru129
- Information security firms based in Ireland124
- Information security firms based in Czechia118
- Information security firms based in Denmark116
- Information security firms based in Egypt112
- Information security firms based in Morocco102
- Information security firms based in Bangladesh101
- Information security firms based in Greece98
- Information security firms based in Japan94
- Information security firms based in the Philippines94
- Information security firms based in Ecuador89
- Information security firms based in Hungary88
- Information security firms based in Finland87
- Information security firms based in Russia80
- Information security firms based in Ukraine71
- Information security firms based in Qatar70
- Information security firms based in Thailand70
- Information security firms based in Norway69
- Information security firms based in Estonia68
- Information security firms based in Sri Lanka65
- Information security firms based in Hong Kong63
- Information security firms based in Bulgaria58
- Information security firms based in Slovakia56
- Information security firms based in Ghana55
- Information security firms based in Luxembourg48
- Information security firms based in Venezuela47
- Information security firms based in the Dominican Republic44
- Information security firms based in Tunisia42
- Information security firms based in Cyprus41
- Information security firms based in Jordan41
- Information security firms based in Costa Rica40
- Information security firms based in South Korea39
- Information security firms based in Nepal38
- Information security firms based in Serbia38
- Information security firms based in Vietnam38
- Information security firms based in Croatia37
- Information security firms based in Panama37
- Information security firms based in Uruguay36
Cities
- Information security firms based in London, United Kingdom823
- Information security firms based in Sao Paulo, Brazil408
- Information security firms based in New York, United States324
- Information security firms based in Dubai, United Arab Emirates308
- Information security firms based in Paris, France301
- Information security firms based in Bangalore, India287
- Information security firms based in Toronto, Canada256
- Information security firms based in Hyderabad, India212
- Information security firms based in Melbourne, Australia209
- Information security firms based in Sydney, Australia206
- Information security firms based in Pune, India189
- Information security firms based in Mumbai, India181
- Information security firms based in Singapore, Singapore177
- Information security firms based in Houston, United States166
- Information security firms based in New Delhi, India159
- Information security firms based in Washington, United States159
- Information security firms based in Madrid, Spain157
- Information security firms based in Austin, United States155
- Information security firms based in Atlanta, United States153
- Information security firms based in Istanbul, Türkiye147
- Information security firms based in Riyadh, Saudi Arabia141
- Information security firms based in Miami, United States133
- Information security firms based in Noida, India131
- Information security firms based in Chicago, United States130
- Information security firms based in Dallas, United States130
- Information security firms based in Chennai, India126
- Information security firms based in Mexico City, Mexico124
- Information security firms based in Nairobi, Kenya119
- Information security firms based in San Francisco, United States116
- Information security firms based in Warsaw, Poland116
- Information security firms based in Stockholm, Sweden112
- Information security firms based in Montreal, Canada108
- Information security firms based in Tampa, United States108
- Information security firms based in Los Angeles, United States105
- Information security firms based in Buenos Aires, Argentina102
- Information security firms based in Gurgaon, India99
- Information security firms based in Rio De Janeiro, Brazil98
- Information security firms based in Berlin, Germany97
- Information security firms based in Calgary, Canada96
- Information security firms based in Ahmedabad, India95
- Information security firms based in Johannesburg, South Africa94
- Information security firms based in Bogota, Colombia93
- Information security firms based in Ottawa, Canada91
- Information security firms based in Rome, Italy88
- Information security firms based in Brisbane, Australia79
- Information security firms based in Karachi, Pakistan79
- Information security firms based in San Diego, United States79
- Information security firms based in Santiago, Chile79
- Information security firms based in Delhi, India76
- Information security firms based in Denver, United States76
- Information security firms based in Munich, Germany76
- Information security firms based in Milan, Italy75
- Information security firms based in Barcelona, Spain74
- Information security firms based in Tel Aviv, Israel74
- Information security firms based in Arlington, United States73
- Information security firms based in Charlotte, United States73
- Information security firms based in Lagos, Nigeria73
- Information security firms based in Boston, United States69
- Information security firms based in Orlando, United States69
- Information security firms based in Manchester, United Kingdom68
- Information security firms based in Phoenix, United States68
- Information security firms based in Seattle, United States68
- Information security firms based in Las Vegas, United States67
- Information security firms based in Bucharest, Romania66
- Information security firms based in Cape Town, South Africa65
- Information security firms based in San Antonio, United States65
- Information security firms based in Lima, Peru63
- Information security firms based in Prague, Czechia62
- Information security firms based in Vancouver, Canada62
- Information security firms based in Columbia, United States61
- Information security firms based in Dhaka, Bangladesh59
- Information security firms based in Amsterdam, Netherlands58
- Information security firms based in Reston, United States58
- Information security firms based in Belo Horizonte, Brazil56
- Information security firms based in Cairo, Egypt56
- Information security firms based in Alexandria, United States55
- Information security firms based in Auckland, New Zealand54
- Information security firms based in Tallinn, Estonia54
- Information security firms based in Vienna, Austria53
- Information security firms based in Brasilia, Brazil51
- Information security firms based in Canberra, Australia51
- Information security firms based in Jaipur, India51
- Information security firms based in Ankara, Türkiye46
- Information security firms based in Casablanca, Morocco46
- Information security firms based in Jakarta, Indonesia46
- Information security firms based in Zurich, Switzerland46
- Information security firms based in Baltimore, United States45
- Information security firms based in Curitiba, Brazil44
- Information security firms based in Hamburg, Germany44
- Information security firms based in Kuala Lumpur, Malaysia44
- Information security firms based in Perth, Australia44
- Information security firms based in Plano, United States44
- Information security firms based in Quito, Ecuador44
- Information security firms based in Raleigh, United States44
- Information security firms based in Bangkok, Thailand43
- Information security firms based in Doha, Qatar43
- Information security firms based in Dublin, Ireland43
- Information security firms based in San Jose, United States43
- Information security firms based in Abu Dhabi, United Arab Emirates42
- Information security firms based in Kyiv, Ukraine42
- Information security firms based in Mclean, United States42
- Information security firms based in Frankfurt, Germany41
- Information security firms based in Nashville, United States41
- Information security firms based in Portland, United States41
- Information security firms based in Sheridan, United States41
- Information security firms based in Fairfax, United States40
- Information security firms based in Huntsville, United States40
- Information security firms based in Kolkata, India40
- Information security firms based in Lisbon, Portugal40
- Information security firms based in Birmingham, United Kingdom39
- Information security firms based in Mississauga, Canada39
- Information security firms based in Richmond, United States39
- Information security firms based in Ashburn, United States38
- Information security firms based in Athens, Greece38
- Information security firms based in Lyon, France38
- Information security firms based in Minneapolis, United States38
- Information security firms based in Wilmington, United States38
- Information security firms based in Barueri, Brazil37
- Information security firms based in Indianapolis, United States37
- Information security firms based in Wellington, New Zealand37
- Information security firms based in Cologne, Germany36
- Information security firms based in Irvine, United States35
- Information security firms based in Sofia, Bulgaria35
- Information security firms based in Caracas, Venezuela34
- Information security firms based in Columbus, United States34
- Information security firms based in Medellin, Colombia34
- Information security firms based in Navi Mumbai, India34
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 “information security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many information security firms are there worldwide?
RevenueBase identified 36,450 company matches for information security firms 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?
Fortinet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most information security firms?
The United States leads with 8,992 companies, followed by India (2,581) and the United Kingdom (2,227). Every information security firms list by country and city is linked on this page.
Which city has the most information security firms?
London leads with 842 company records, followed by Sao Paulo (408) and New York (324).
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 157,311 professional contacts with verified work emails tracked across these 36,450 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 36,450 information security firms 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 information security firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 36,450 matching company records for information security firms worldwide, with 549,718 tracked contacts and 157,311 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 information security firms 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 |  Fortinetfortinet.comHQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 15,414 contacts → |
“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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. | |||||
| 3 |  Symantecbroadcom.comHQ: San Jose, CA, United StatesReported employees: 10001+ | San Jose, CA, United States | 10001+ | Exact match | 11,878 contacts → |
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Sophossophos.comHQ: Abingdon, United KingdomReported employees: 5,001-10,000 | Abingdon, United Kingdom | 5,001-10,000 | Exact match | 5,283 contacts → |
“Sophos, a global cybersecurity leader, defends more than organizations worldwide with Sophos Fusion, the industry's first and most complete AI-native cybersecurity defense system…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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. | |||||
| 6 |  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. | |||||
| 7 |  Arctic Wolfarcticwolf.comHQ: Eden Prairie, United StatesReported employees: 1,001-5,000 | Eden Prairie, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Bugcrowdbugcrowd.comHQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 3,342 contacts → |
“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  NRI Groupnri.comHQ: Chiyoda-ku, NY, JapanReported employees: 10001+ | Chiyoda-ku, NY, Japan | 10001+ | Exact match | 3,248 contacts → |
“We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Securitas Sverige ABsecuritas.seHQ: Stockholm, SwedenReported employees: 5,001-10,000 | Stockholm, Sweden | 5,001-10,000 | Exact match | 3,053 contacts → |
“Securitas is a global knowledge leader in security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Bitdefenderbitdefender.comHQ: Bucharest, RomaniaReported employees: 1,001-5,000 | Bucharest, Romania | 1,001-5,000 | Exact match | 2,274 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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. | |||||
| 13 |  Wilson Securitywilsonsecurity.com.auHQ: Essendon Fields, AustraliaReported employees: 5,001-10,000 | Essendon Fields, Australia | 5,001-10,000 | Exact match | 1,964 contacts → |
“At Wilson Security, we are committed to building a safer future for everyone.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  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. | |||||
| 15 |  Eplus INCeplus.comHQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 1,901 contacts → |
“ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Inspira Enterpriseinspiraenterprise.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 1,859 contacts → |
“Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Beyondtrustbeyondtrust.comHQ: Johns Creek, GA, United StatesReported employees: 1,001-5,000 | Johns Creek, GA, United States | 1,001-5,000 | Exact match | 1,770 contacts → |
“BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Grupo Atlas DE Seguridad Integralatlas.com.coHQ: Cali, ColombiaReported employees: 10001+ | Cali, Colombia | 10001+ | Exact match | 1,574 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Guardsmarkguardsmark.comHQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 1,562 contacts → |
“Guardsmark, LLC provides security services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Airbus Protectprotect.airbus.comHQ: Blagnac, FranceReported employees: 1,001-5,000 | Blagnac, France | 1,001-5,000 | Exact match | 1,515 contacts → |
“Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Site سايتsite.saHQ: Al Nakheel, Saudi ArabiaReported employees: 501-1,000 | Al Nakheel, Saudi Arabia | 501-1,000 | Exact match | 1,514 contacts → |
“We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  First Security Group LLCfirstsg.comHQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,465 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Imvula Quality Protectionimvula.netHQ: Woodmead, South AfricaReported employees: 10001+ | Woodmead, South Africa | 10001+ | Exact match | 1,460 contacts → |
“At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Securitas Belgiumsecuritas.beHQ: Diegem, BelgiumReported employees: 5,001-10,000 | Diegem, Belgium | 5,001-10,000 | Exact match | 1,449 contacts → |
“See a different world.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Thales Cybersecurity Productscpl.thalesgroup.comHQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,413 contacts → |
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 36,450 company matches
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Information security firms: 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
36,309 records in the displayed employee bands.
141 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 36,450 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 ↗
Information security firms by location
236 lists · largest firstEvery Information security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Information security firms based in the United States8,992
- Information security firms based in India2,581
- Information security firms based in the United Kingdom2,227
- Information security firms based in Brazil1,339
- Information security firms based in France1,180
- Information security firms based in Canada1,134
- Information security firms based in Germany1,123
- Information security firms based in Australia1,029
- Information security firms based in the Netherlands668
- Information security firms based in Spain567
- Information security firms based in Italy561
- Information security firms based in the United Arab Emirates495
- Information security firms based in Mexico460
- Information security firms based in South Africa410
- Information security firms based in Türkiye374
- Information security firms based in Switzerland338
- Information security firms based in Israel307
- Information security firms based in Poland276
- Information security firms based in Colombia270
- Information security firms based in Belgium261
- Information security firms based in Pakistan260
- Information security firms based in Sweden250
- Information security firms based in Chile246
- Information security firms based in Argentina231
- Information security firms based in Nigeria228
- Information security firms based in Saudi Arabia227
- Information security firms based in Singapore200
- Information security firms based in Indonesia197
- Information security firms based in Austria144
- Information security firms based in Malaysia141
- Information security firms based in Kenya139
- Information security firms based in China137
- Information security firms based in Romania133
- Information security firms based in Portugal132
- Information security firms based in New Zealand129
- Information security firms based in Peru129
- Information security firms based in Ireland124
- Information security firms based in Czechia118
- Information security firms based in Denmark116
- Information security firms based in Egypt112
- Information security firms based in Morocco102
- Information security firms based in Bangladesh101
- Information security firms based in Greece98
- Information security firms based in Japan94
- Information security firms based in the Philippines94
- Information security firms based in Ecuador89
- Information security firms based in Hungary88
- Information security firms based in Finland87
- Information security firms based in Russia80
- Information security firms based in Ukraine71
- Information security firms based in Qatar70
- Information security firms based in Thailand70
- Information security firms based in Norway69
- Information security firms based in Estonia68
- Information security firms based in Sri Lanka65
- Information security firms based in Hong Kong63
- Information security firms based in Bulgaria58
- Information security firms based in Slovakia56
- Information security firms based in Ghana55
- Information security firms based in Luxembourg48
- Information security firms based in Venezuela47
- Information security firms based in the Dominican Republic44
- Information security firms based in Tunisia42
- Information security firms based in Cyprus41
- Information security firms based in Jordan41
- Information security firms based in Costa Rica40
- Information security firms based in South Korea39
- Information security firms based in Nepal38
- Information security firms based in Serbia38
- Information security firms based in Vietnam38
- Information security firms based in Croatia37
- Information security firms based in Panama37
- Information security firms based in Uruguay36
Cities
- Information security firms based in London, United Kingdom823
- Information security firms based in Sao Paulo, Brazil408
- Information security firms based in New York, United States324
- Information security firms based in Dubai, United Arab Emirates308
- Information security firms based in Paris, France301
- Information security firms based in Bangalore, India287
- Information security firms based in Toronto, Canada256
- Information security firms based in Hyderabad, India212
- Information security firms based in Melbourne, Australia209
- Information security firms based in Sydney, Australia206
- Information security firms based in Pune, India189
- Information security firms based in Mumbai, India181
- Information security firms based in Singapore, Singapore177
- Information security firms based in Houston, United States166
- Information security firms based in New Delhi, India159
- Information security firms based in Washington, United States159
- Information security firms based in Madrid, Spain157
- Information security firms based in Austin, United States155
- Information security firms based in Atlanta, United States153
- Information security firms based in Istanbul, Türkiye147
- Information security firms based in Riyadh, Saudi Arabia141
- Information security firms based in Miami, United States133
- Information security firms based in Noida, India131
- Information security firms based in Chicago, United States130
- Information security firms based in Dallas, United States130
- Information security firms based in Chennai, India126
- Information security firms based in Mexico City, Mexico124
- Information security firms based in Nairobi, Kenya119
- Information security firms based in San Francisco, United States116
- Information security firms based in Warsaw, Poland116
- Information security firms based in Stockholm, Sweden112
- Information security firms based in Montreal, Canada108
- Information security firms based in Tampa, United States108
- Information security firms based in Los Angeles, United States105
- Information security firms based in Buenos Aires, Argentina102
- Information security firms based in Gurgaon, India99
- Information security firms based in Rio De Janeiro, Brazil98
- Information security firms based in Berlin, Germany97
- Information security firms based in Calgary, Canada96
- Information security firms based in Ahmedabad, India95
- Information security firms based in Johannesburg, South Africa94
- Information security firms based in Bogota, Colombia93
- Information security firms based in Ottawa, Canada91
- Information security firms based in Rome, Italy88
- Information security firms based in Brisbane, Australia79
- Information security firms based in Karachi, Pakistan79
- Information security firms based in San Diego, United States79
- Information security firms based in Santiago, Chile79
- Information security firms based in Delhi, India76
- Information security firms based in Denver, United States76
- Information security firms based in Munich, Germany76
- Information security firms based in Milan, Italy75
- Information security firms based in Barcelona, Spain74
- Information security firms based in Tel Aviv, Israel74
- Information security firms based in Arlington, United States73
- Information security firms based in Charlotte, United States73
- Information security firms based in Lagos, Nigeria73
- Information security firms based in Boston, United States69
- Information security firms based in Orlando, United States69
- Information security firms based in Manchester, United Kingdom68
- Information security firms based in Phoenix, United States68
- Information security firms based in Seattle, United States68
- Information security firms based in Las Vegas, United States67
- Information security firms based in Bucharest, Romania66
- Information security firms based in Cape Town, South Africa65
- Information security firms based in San Antonio, United States65
- Information security firms based in Lima, Peru63
- Information security firms based in Prague, Czechia62
- Information security firms based in Vancouver, Canada62
- Information security firms based in Columbia, United States61
- Information security firms based in Dhaka, Bangladesh59
- Information security firms based in Amsterdam, Netherlands58
- Information security firms based in Reston, United States58
- Information security firms based in Belo Horizonte, Brazil56
- Information security firms based in Cairo, Egypt56
- Information security firms based in Alexandria, United States55
- Information security firms based in Auckland, New Zealand54
- Information security firms based in Tallinn, Estonia54
- Information security firms based in Vienna, Austria53
- Information security firms based in Brasilia, Brazil51
- Information security firms based in Canberra, Australia51
- Information security firms based in Jaipur, India51
- Information security firms based in Ankara, Türkiye46
- Information security firms based in Casablanca, Morocco46
- Information security firms based in Jakarta, Indonesia46
- Information security firms based in Zurich, Switzerland46
- Information security firms based in Baltimore, United States45
- Information security firms based in Curitiba, Brazil44
- Information security firms based in Hamburg, Germany44
- Information security firms based in Kuala Lumpur, Malaysia44
- Information security firms based in Perth, Australia44
- Information security firms based in Plano, United States44
- Information security firms based in Quito, Ecuador44
- Information security firms based in Raleigh, United States44
- Information security firms based in Bangkok, Thailand43
- Information security firms based in Doha, Qatar43
- Information security firms based in Dublin, Ireland43
- Information security firms based in San Jose, United States43
- Information security firms based in Abu Dhabi, United Arab Emirates42
- Information security firms based in Kyiv, Ukraine42
- Information security firms based in Mclean, United States42
- Information security firms based in Frankfurt, Germany41
- Information security firms based in Nashville, United States41
- Information security firms based in Portland, United States41
- Information security firms based in Sheridan, United States41
- Information security firms based in Fairfax, United States40
- Information security firms based in Huntsville, United States40
- Information security firms based in Kolkata, India40
- Information security firms based in Lisbon, Portugal40
- Information security firms based in Birmingham, United Kingdom39
- Information security firms based in Mississauga, Canada39
- Information security firms based in Richmond, United States39
- Information security firms based in Ashburn, United States38
- Information security firms based in Athens, Greece38
- Information security firms based in Lyon, France38
- Information security firms based in Minneapolis, United States38
- Information security firms based in Wilmington, United States38
- Information security firms based in Barueri, Brazil37
- Information security firms based in Indianapolis, United States37
- Information security firms based in Wellington, New Zealand37
- Information security firms based in Cologne, Germany36
- Information security firms based in Irvine, United States35
- Information security firms based in Sofia, Bulgaria35
- Information security firms based in Caracas, Venezuela34
- Information security firms based in Columbus, United States34
- Information security firms based in Medellin, Colombia34
- Information security firms based in Navi Mumbai, India34
Questions about this company list
What does Exact match mean for information security firms?
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 information security firms did RevenueBase find worldwide?
The saved snapshot records 36,450 matching company records, 549,718 tracked contacts and 157,311 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 information security firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/information-security-firms.
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 information security firms worldwide
RevenueBase records 36,450 matching company records for information security firms worldwide, with 549,718 tracked contacts and 157,311 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 information security firms 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 | Fortinetfortinet.com HQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 15,414 contacts → |
“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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. | |||||
| 3 | Symantecbroadcom.com HQ: San Jose, CA, United StatesReported employees: 10001+ | San Jose, CA, United States | 10001+ | Exact match | 11,878 contacts → |
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sophossophos.com HQ: Abingdon, United KingdomReported employees: 5,001-10,000 | Abingdon, United Kingdom | 5,001-10,000 | Exact match | 5,283 contacts → |
“Sophos, a global cybersecurity leader, defends more than organizations worldwide with Sophos Fusion, the industry's first and most complete AI-native cybersecurity defense system…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | Arctic Wolfarcticwolf.com HQ: Eden Prairie, United StatesReported employees: 1,001-5,000 | Eden Prairie, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Bugcrowdbugcrowd.com HQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 3,342 contacts → |
“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | NRI Groupnri.com HQ: Chiyoda-ku, NY, JapanReported employees: 10001+ | Chiyoda-ku, NY, Japan | 10001+ | Exact match | 3,248 contacts → |
“We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Securitas Sverige ABsecuritas.se HQ: Stockholm, SwedenReported employees: 5,001-10,000 | Stockholm, Sweden | 5,001-10,000 | Exact match | 3,053 contacts → |
“Securitas is a global knowledge leader in security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Bitdefenderbitdefender.com HQ: Bucharest, RomaniaReported employees: 1,001-5,000 | Bucharest, Romania | 1,001-5,000 | Exact match | 2,274 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | Wilson Securitywilsonsecurity.com.au HQ: Essendon Fields, AustraliaReported employees: 5,001-10,000 | Essendon Fields, Australia | 5,001-10,000 | Exact match | 1,964 contacts → |
“At Wilson Security, we are committed to building a safer future for everyone.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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. | |||||
| 15 | Eplus INCeplus.com HQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 1,901 contacts → |
“ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Inspira Enterpriseinspiraenterprise.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 1,859 contacts → |
“Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Beyondtrustbeyondtrust.com HQ: Johns Creek, GA, United StatesReported employees: 1,001-5,000 | Johns Creek, GA, United States | 1,001-5,000 | Exact match | 1,770 contacts → |
“BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Grupo Atlas DE Seguridad Integralatlas.com.co HQ: Cali, ColombiaReported employees: 10001+ | Cali, Colombia | 10001+ | Exact match | 1,574 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Guardsmarkguardsmark.com HQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 1,562 contacts → |
“Guardsmark, LLC provides security services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Airbus Protectprotect.airbus.com HQ: Blagnac, FranceReported employees: 1,001-5,000 | Blagnac, France | 1,001-5,000 | Exact match | 1,515 contacts → |
“Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Site سايتsite.sa HQ: Al Nakheel, Saudi ArabiaReported employees: 501-1,000 | Al Nakheel, Saudi Arabia | 501-1,000 | Exact match | 1,514 contacts → |
“We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | First Security Group LLCfirstsg.com HQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,465 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Imvula Quality Protectionimvula.net HQ: Woodmead, South AfricaReported employees: 10001+ | Woodmead, South Africa | 10001+ | Exact match | 1,460 contacts → |
“At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Securitas Belgiumsecuritas.be HQ: Diegem, BelgiumReported employees: 5,001-10,000 | Diegem, Belgium | 5,001-10,000 | Exact match | 1,449 contacts → |
“See a different world.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Thales Cybersecurity Productscpl.thalesgroup.com HQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,413 contacts → |
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 36,450 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Information security firms: 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
36,309 records in the displayed employee bands.
141 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 36,450 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 ↗
Information security firms by location
236 lists · largest firstEvery Information security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Information security firms based in the United States8,992
- Information security firms based in India2,581
- Information security firms based in the United Kingdom2,227
- Information security firms based in Brazil1,339
- Information security firms based in France1,180
- Information security firms based in Canada1,134
- Information security firms based in Germany1,123
- Information security firms based in Australia1,029
- Information security firms based in the Netherlands668
- Information security firms based in Spain567
- Information security firms based in Italy561
- Information security firms based in the United Arab Emirates495
- Information security firms based in Mexico460
- Information security firms based in South Africa410
- Information security firms based in Türkiye374
- Information security firms based in Switzerland338
- Information security firms based in Israel307
- Information security firms based in Poland276
- Information security firms based in Colombia270
- Information security firms based in Belgium261
- Information security firms based in Pakistan260
- Information security firms based in Sweden250
- Information security firms based in Chile246
- Information security firms based in Argentina231
- Information security firms based in Nigeria228
- Information security firms based in Saudi Arabia227
- Information security firms based in Singapore200
- Information security firms based in Indonesia197
- Information security firms based in Austria144
- Information security firms based in Malaysia141
- Information security firms based in Kenya139
- Information security firms based in China137
- Information security firms based in Romania133
- Information security firms based in Portugal132
- Information security firms based in New Zealand129
- Information security firms based in Peru129
- Information security firms based in Ireland124
- Information security firms based in Czechia118
- Information security firms based in Denmark116
- Information security firms based in Egypt112
- Information security firms based in Morocco102
- Information security firms based in Bangladesh101
- Information security firms based in Greece98
- Information security firms based in Japan94
- Information security firms based in the Philippines94
- Information security firms based in Ecuador89
- Information security firms based in Hungary88
- Information security firms based in Finland87
- Information security firms based in Russia80
- Information security firms based in Ukraine71
- Information security firms based in Qatar70
- Information security firms based in Thailand70
- Information security firms based in Norway69
- Information security firms based in Estonia68
- Information security firms based in Sri Lanka65
- Information security firms based in Hong Kong63
- Information security firms based in Bulgaria58
- Information security firms based in Slovakia56
- Information security firms based in Ghana55
- Information security firms based in Luxembourg48
- Information security firms based in Venezuela47
- Information security firms based in the Dominican Republic44
- Information security firms based in Tunisia42
- Information security firms based in Cyprus41
- Information security firms based in Jordan41
- Information security firms based in Costa Rica40
- Information security firms based in South Korea39
- Information security firms based in Nepal38
- Information security firms based in Serbia38
- Information security firms based in Vietnam38
- Information security firms based in Croatia37
- Information security firms based in Panama37
- Information security firms based in Uruguay36
Cities
- Information security firms based in London, United Kingdom823
- Information security firms based in Sao Paulo, Brazil408
- Information security firms based in New York, United States324
- Information security firms based in Dubai, United Arab Emirates308
- Information security firms based in Paris, France301
- Information security firms based in Bangalore, India287
- Information security firms based in Toronto, Canada256
- Information security firms based in Hyderabad, India212
- Information security firms based in Melbourne, Australia209
- Information security firms based in Sydney, Australia206
- Information security firms based in Pune, India189
- Information security firms based in Mumbai, India181
- Information security firms based in Singapore, Singapore177
- Information security firms based in Houston, United States166
- Information security firms based in New Delhi, India159
- Information security firms based in Washington, United States159
- Information security firms based in Madrid, Spain157
- Information security firms based in Austin, United States155
- Information security firms based in Atlanta, United States153
- Information security firms based in Istanbul, Türkiye147
- Information security firms based in Riyadh, Saudi Arabia141
- Information security firms based in Miami, United States133
- Information security firms based in Noida, India131
- Information security firms based in Chicago, United States130
- Information security firms based in Dallas, United States130
- Information security firms based in Chennai, India126
- Information security firms based in Mexico City, Mexico124
- Information security firms based in Nairobi, Kenya119
- Information security firms based in San Francisco, United States116
- Information security firms based in Warsaw, Poland116
- Information security firms based in Stockholm, Sweden112
- Information security firms based in Montreal, Canada108
- Information security firms based in Tampa, United States108
- Information security firms based in Los Angeles, United States105
- Information security firms based in Buenos Aires, Argentina102
- Information security firms based in Gurgaon, India99
- Information security firms based in Rio De Janeiro, Brazil98
- Information security firms based in Berlin, Germany97
- Information security firms based in Calgary, Canada96
- Information security firms based in Ahmedabad, India95
- Information security firms based in Johannesburg, South Africa94
- Information security firms based in Bogota, Colombia93
- Information security firms based in Ottawa, Canada91
- Information security firms based in Rome, Italy88
- Information security firms based in Brisbane, Australia79
- Information security firms based in Karachi, Pakistan79
- Information security firms based in San Diego, United States79
- Information security firms based in Santiago, Chile79
- Information security firms based in Delhi, India76
- Information security firms based in Denver, United States76
- Information security firms based in Munich, Germany76
- Information security firms based in Milan, Italy75
- Information security firms based in Barcelona, Spain74
- Information security firms based in Tel Aviv, Israel74
- Information security firms based in Arlington, United States73
- Information security firms based in Charlotte, United States73
- Information security firms based in Lagos, Nigeria73
- Information security firms based in Boston, United States69
- Information security firms based in Orlando, United States69
- Information security firms based in Manchester, United Kingdom68
- Information security firms based in Phoenix, United States68
- Information security firms based in Seattle, United States68
- Information security firms based in Las Vegas, United States67
- Information security firms based in Bucharest, Romania66
- Information security firms based in Cape Town, South Africa65
- Information security firms based in San Antonio, United States65
- Information security firms based in Lima, Peru63
- Information security firms based in Prague, Czechia62
- Information security firms based in Vancouver, Canada62
- Information security firms based in Columbia, United States61
- Information security firms based in Dhaka, Bangladesh59
- Information security firms based in Amsterdam, Netherlands58
- Information security firms based in Reston, United States58
- Information security firms based in Belo Horizonte, Brazil56
- Information security firms based in Cairo, Egypt56
- Information security firms based in Alexandria, United States55
- Information security firms based in Auckland, New Zealand54
- Information security firms based in Tallinn, Estonia54
- Information security firms based in Vienna, Austria53
- Information security firms based in Brasilia, Brazil51
- Information security firms based in Canberra, Australia51
- Information security firms based in Jaipur, India51
- Information security firms based in Ankara, Türkiye46
- Information security firms based in Casablanca, Morocco46
- Information security firms based in Jakarta, Indonesia46
- Information security firms based in Zurich, Switzerland46
- Information security firms based in Baltimore, United States45
- Information security firms based in Curitiba, Brazil44
- Information security firms based in Hamburg, Germany44
- Information security firms based in Kuala Lumpur, Malaysia44
- Information security firms based in Perth, Australia44
- Information security firms based in Plano, United States44
- Information security firms based in Quito, Ecuador44
- Information security firms based in Raleigh, United States44
- Information security firms based in Bangkok, Thailand43
- Information security firms based in Doha, Qatar43
- Information security firms based in Dublin, Ireland43
- Information security firms based in San Jose, United States43
- Information security firms based in Abu Dhabi, United Arab Emirates42
- Information security firms based in Kyiv, Ukraine42
- Information security firms based in Mclean, United States42
- Information security firms based in Frankfurt, Germany41
- Information security firms based in Nashville, United States41
- Information security firms based in Portland, United States41
- Information security firms based in Sheridan, United States41
- Information security firms based in Fairfax, United States40
- Information security firms based in Huntsville, United States40
- Information security firms based in Kolkata, India40
- Information security firms based in Lisbon, Portugal40
- Information security firms based in Birmingham, United Kingdom39
- Information security firms based in Mississauga, Canada39
- Information security firms based in Richmond, United States39
- Information security firms based in Ashburn, United States38
- Information security firms based in Athens, Greece38
- Information security firms based in Lyon, France38
- Information security firms based in Minneapolis, United States38
- Information security firms based in Wilmington, United States38
- Information security firms based in Barueri, Brazil37
- Information security firms based in Indianapolis, United States37
- Information security firms based in Wellington, New Zealand37
- Information security firms based in Cologne, Germany36
- Information security firms based in Irvine, United States35
- Information security firms based in Sofia, Bulgaria35
- Information security firms based in Caracas, Venezuela34
- Information security firms based in Columbus, United States34
- Information security firms based in Medellin, Colombia34
- Information security firms based in Navi Mumbai, India34
Questions about this company list
What does Exact match mean for information security firms?
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 information security firms did RevenueBase find worldwide?
The saved snapshot records 36,450 matching company records, 549,718 tracked contacts and 157,311 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
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Cite this list
RevenueBase Data Team. Top 25 information security firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/information-security-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗