Company lists · Data refreshed October 2026

Top 25 Cybersecurity firms worldwide

Name: Cybersecurity firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 35,652 companies tracked

RevenueBase identified 35,652 company matches for cybersecurity firms worldwide as of October 2026 and tracks 636,347 professional contacts across them, including 222,442 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity 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 October 1, 2026. Country and city lists for cybersecurity 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

35,652Companies

636,347Contacts tracked

222,442Verified emails

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The 25 largest cybersecurity firms worldwide

Ranked by team size

Top 25 of 35,652 company matches for cybersecurity firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Palo Alto Networks	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 1, 2026	10001+	18,431 contacts →
	Exact match “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Oct 1, 2026	10001+	14,289 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 · Oct 1, 2026 · View company records in RevenueBase
3	Private Sector	Exact match	United StatesHQ recorded Oct 1, 2026	n/a	12,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	10001+	11,169 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 · Oct 1, 2026 · View company records in RevenueBase
5	Crowdstrike	Exact match	Remote, United StatesHQ recorded Oct 1, 2026	5,001-10,000	10,118 contacts →
	Exact match “CrowdStrike (Nasdaq: CRWD), a global cybersecurity leader, has redefined modern security with the world’s most advanced cloud-native platform for protecting critical areas of…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Check Point Software	Exact match	Redwood City, CA, United StatesHQ recorded Oct 1, 2026	5,001-10,000	7,668 contacts →
	Exact match “Check Point Software Technologies Ltd.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Trend Micro	Exact match	Yoyogi, JapanHQ recorded Oct 1, 2026	5,001-10,000	4,942 contacts →
	Exact match “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Sophos	Exact match	Abingdon, United KingdomHQ recorded Oct 1, 2026	5,001-10,000	4,925 contacts →
	Exact match “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	F-Secure Corporation	Exact match	Helsinki, FinlandHQ recorded Oct 1, 2026	n/a	4,766 contacts →
	Exact match “F-Secure is a human-first, AI-powered consumer cyber security experience company with 38 years of expertise in tackling digital threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Rubrik	Exact match	Palo Alto, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	4,448 contacts →
	Exact match “Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Commvault	Exact match	Tinton Falls, NJ, United StatesHQ recorded Oct 1, 2026	1,001-5,000	4,032 contacts →
	Exact match “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Kaspersky	Exact match	Stadtkreis 1 Altstadt, FranceHQ recorded Oct 1, 2026	5,001-10,000	3,822 contacts →
	Exact match “Our mission is simple – building a safer world.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Oct 1, 2026	1,001-5,000	3,673 contacts →
	Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Bugcrowd	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	n/a	3,649 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 · Oct 1, 2026 · View company records in RevenueBase
15	Trellix	Exact match	Plano, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,447 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Arctic Wolf	Exact match	Eden Prairie, MN, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,145 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 · Oct 1, 2026 · View company records in RevenueBase
17	Qualys	Exact match	Foster City, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,058 contacts →
	Exact match “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Sentinelone	Exact match	Mountain View, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,052 contacts →
	Exact match “SentinelOne is the world's leading AI-powered cybersecurity platform.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Entrust	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,907 contacts →
	Exact match “Entrust fights fraud and cyber threats with identity-centric security that protects people, devices, and data.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Sailpoint	Exact match	Austin, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,886 contacts →
	Exact match “SailPoint equips the modern enterprise to seamlessly manage and secure access to applications and data through the lens of identity – at speed and scale.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Rapid7	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,822 contacts →
	Exact match “Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Infoblox	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,813 contacts →
	Exact match “Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	GEN	Exact match	Tempe, United StatesHQ recorded Oct 1, 2026	5,001-10,000	2,760 contacts →
	Exact match “Gen (NASDAQ: GEN) is a global company dedicated to Powering Digital Freedom through its trusted Cyber Safety brands, Norton, Avast, LifeLock, MoneyLion and more.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Varonis	Exact match	Miami, FL, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,715 contacts →
	Exact match “Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Knowbe4	Exact match	Clearwater, FL, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,367 contacts →
	Exact match “KnowBe4 empowers the modern workforce to make smarter security decisions every day.” Recorded in the RevenueBase company graph · Oct 1, 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 “cybersecurity 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 35,652 cybersecurity firms worldwide

See the full list, filter by size, metro and specialty, and access 222,442 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity firms worldwide at a glance

As of Oct 1, 2026

35.0%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

19,709

11-50

11,430

51-200

3,124

201-500

754

501-1,000

256

1,001-5,000

224

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for cybersecurity firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “cybersecurity 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 222,442 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 October 1, 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.

Cybersecurity firms by location

228 lists · largest first

Every Cybersecurity firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity firms are there worldwide?

RevenueBase identified 35,652 company matches for cybersecurity firms worldwide as of October 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?

Palo Alto Networks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most cybersecurity firms?

The United States leads with 8,911 companies, followed by India (2,684) and the United Kingdom (2,100). Every cybersecurity firms list by country and city is linked on this page.

Which city has the most cybersecurity firms?

London leads with 895 company records, followed by Paris (360) and New York (359).

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 222,442 professional contacts with verified work emails tracked across these 35,652 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 October 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.