Company lists · Data refreshed November 2026

Top 25 Cybersecurity and data protection companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 37,863 companies tracked

RevenueBase identified 37,863 company matches for cybersecurity and data protection companies worldwide as of November 2026 and tracks 701,291 professional contacts across them, including 245,929 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity and data protection companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for cybersecurity and data protection 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 Nov 5, 2026 How this list was built

37,863Companies

701,291Contacts tracked

245,929Verified emails

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

The 25 largest cybersecurity and data protection companies worldwide

Ranked by team size

Top 25 of 37,863 company matches for cybersecurity and data protection companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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, United StatesHQ recorded Nov 5, 2026	10001+	21,906 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 · Nov 5, 2026 · View company records in RevenueBase
2	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Nov 5, 2026	10001+	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
3	Private Sector	Exact match	United StatesHQ recorded Nov 5, 2026	n/a	13,149 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Nov 5, 2026	10001+	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
5	Crowdstrike	Exact match	Remote, United StatesHQ recorded Nov 5, 2026	5,001-10,000	11,304 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 · Nov 5, 2026 · View company records in RevenueBase
6	Veeam Software	Exact match	Seattle, United StatesHQ recorded Nov 5, 2026	5,001-10,000	7,091 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Cohesity	Exact match	Santa Clara, CA, United StatesHQ recorded Nov 5, 2026	5,001-10,000	5,497 contacts →
	Exact match “A modern platform for the AI era.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Sophos	Exact match	Abingdon, United KingdomHQ recorded Nov 5, 2026	5,001-10,000	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
9	F-Secure Corporation	Exact match	Helsinki, FinlandHQ recorded Nov 5, 2026	n/a	4,921 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 · Nov 5, 2026 · View company records in RevenueBase
10	Rubrik	Exact match	Palo Alto, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,857 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 · Nov 5, 2026 · View company records in RevenueBase
11	Commvault	Exact match	Tinton Falls, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,279 contacts →
	Exact match “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Kaspersky	Exact match	Stadtkreis 1 Altstadt, FranceHQ recorded Nov 5, 2026	5,001-10,000	4,047 contacts →
	Exact match “Our mission is simple – building a safer world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Nov 5, 2026	1,001-5,000	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
14	Sailpoint	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,628 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 · Nov 5, 2026 · View company records in RevenueBase
15	Sicuritalia S.P.A	Exact match	Milan, ItalyHQ recorded Nov 5, 2026	10001+	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
16	Trellix	Exact match	Plano, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,510 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 · Nov 5, 2026 · View company records in RevenueBase
17	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,432 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Arctic Wolf	Exact match	Eden Prairie, United StatesHQ recorded Nov 5, 2026	1,001-5,000	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
19	Bugcrowd	Exact match	San Francisco, CA, United StatesHQ recorded Nov 5, 2026	n/a	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
20	Entrust	Exact match	Minneapolis, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,163 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 · Nov 5, 2026 · View company records in RevenueBase
21	Sentinelone	Exact match	Mountain View, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,154 contacts →
	Exact match “SentinelOne is the world's leading AI-powered cybersecurity platform.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	GTT	Exact match	Arlington, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,071 contacts →
	Exact match “GTT is a leading networking and security as a service provider for multinational organizations, simply and securely connecting people and machines to data and applications –…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Rapid7	Exact match	Boston, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,060 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 · Nov 5, 2026 · View company records in RevenueBase
24	GEN	Exact match	Tempe, United StatesHQ recorded Nov 5, 2026	5,001-10,000	3,040 contacts →
	Exact match “Gen (NASDAQ: GEN) is a global company dedicated to Powering Digital Freedom through its trusted consumer brands including Norton, Avast, LifeLock and MoneyLion.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Varonis	Exact match	Miami, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,914 contacts →
	Exact match “Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” 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 “cybersecurity and data protection 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 37,863 cybersecurity and data protection companies worldwide

See the full list, filter by size, metro and specialty, and access 245,929 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Cybersecurity and data protection companies worldwide at a glance

As of Nov 5, 2026

35.1%Verified-email coverage

18.5Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

20,875

11-50

12,309

51-200

3,236

201-500

732

501-1,000

244

1,001-5,000

229

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 and data protection companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “cybersecurity and data protection 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 245,929 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.

Cybersecurity and data protection companies by location

248 lists · largest first

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

How many cybersecurity and data protection companies are there worldwide?

RevenueBase identified 37,863 company matches for cybersecurity and data protection companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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 and data protection companies?

The United States leads with 9,143 companies, followed by India (2,870) and the United Kingdom (2,306). Every cybersecurity and data protection companies list by country and city is linked on this page.

Which city has the most cybersecurity and data protection companies?

London leads with 884 company records, followed by Sao Paulo (420) and Dubai (357).

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 245,929 professional contacts with verified work emails tracked across these 37,863 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 37,863 cybersecurity and data protection 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.