Company lists · Data refreshed October 2026

Top 25 Cybersecurity companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 36,510 companies tracked

RevenueBase identified 36,510 company matches for cybersecurity companies worldwide as of October 2026 and tracks 837,389 professional contacts across them, including 272,648 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026. Country and city lists for cybersecurity companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

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

36,510Companies

837,389Contacts tracked

272,648Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity companies worldwide

Ranked by team size

Top 25 of 36,510 company matches for cybersecurity companies 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	CISCO	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	10001+	137,277 contacts →
	Exact match “Cisco is the worldwide technology leader that is revolutionizing the way organizations connect and protect in the AI era.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	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
3	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
4	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
5	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
6	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
7	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
8	Giesecke Devrient	Exact match	Munich, GermanyHQ recorded Oct 1, 2026	10001+	6,240 contacts →
	Exact match “Giesecke+Devrient (G+D) is a global SecurityTech company headquartered in Munich, Germany.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Hackerone	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	n/a	6,058 contacts →
	Exact match “HackerOne is a global leader in Continuous Threat Exposure Management (CTEM) and the only solution provider that pairs the simultaneous trust of the Fortune 500 and the world's…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Cohesity	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	4,962 contacts →
	Exact match “A modern platform for the AI era Our mission at Cohesity is simple: to protect, secure, and provide insights into the world’s data.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	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
12	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
13	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
14	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
15	Kaseya	Exact match	Miami, FL, United StatesHQ recorded Oct 1, 2026	5,001-10,000	4,276 contacts →
	Exact match “Kaseya is the leading global provider of AI-powered IT management and cybersecurity software.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	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
17	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
18	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
19	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
20	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
21	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,206 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	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
23	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
24	Netskope	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	3,056 contacts →
	Exact match “Netskope (NASDAQ: NTSK), a leader in modern security and networking for the cloud and AI era, addresses the needs of both security and networking teams by providing optimized…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	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

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 companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 36,510 cybersecurity companies worldwide

See the full list, filter by size, metro and specialty, and access 272,648 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Cybersecurity companies worldwide at a glance

As of Oct 1, 2026

32.6%Verified-email coverage

22.9Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

19,760

11-50

11,926

51-200

3,308

201-500

821

501-1,000

284

1,001-5,000

239

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 companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “cybersecurity companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 272,648 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 companies by location

229 lists · largest first

Every Cybersecurity companies 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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity companies are there worldwide?

RevenueBase identified 36,510 company matches for cybersecurity companies 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?

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

Which country has the most cybersecurity companies?

The United States leads with 8,998 companies, followed by India (2,770) and the United Kingdom (2,121). Every cybersecurity companies list by country and city is linked on this page.

Which city has the most cybersecurity companies?

London leads with 882 company records, followed by New York (359) and Sao Paulo (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 272,648 professional contacts with verified work emails tracked across these 36,510 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.

Ready to reach these companies? Verified emails and direct dials for all 36,510 cybersecurity companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.