Company lists · Data refreshed September 2026

Top 25 Cybersecurity startups worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 19,588 companies tracked

RevenueBase identified 19,588 cybersecurity startups worldwide as of September 2026 and tracks 403,364 professional contacts across them, including 155,595 with verified work emails and 68,220 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers cybersecurity startups worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026. Country and city lists for cybersecurity startups follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

19,588Companies

403,364Contacts tracked

155,595Verified emails

68,220Mobile numbers

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The 25 largest cybersecurity startups worldwide

Ranked by team size

Top 25 of 19,588 cybersecurity startups worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity startups: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Palo Alto Networks	Partial evidence	He, NL	10001+	18,430 contacts →
	Partial evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 1, 2026
2	Fortinet	Indirect evidence	Ottawa, ON, CA	10001+	14,326 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 1, 2026
3	Symantec	Partial evidence	San Jose, CA, US	10001+	11,179 contacts →
	Partial evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 1, 2026
4	Check Point Software	Indirect evidence	RO	5,001-10,000	7,777 contacts →
	Indirect evidence “Check Point Software Technologies Ltd.” Source: RevenueBase Database · checked Sep 1, 2026
5	Sophos	Partial evidence	Abingdon, GB	5,001-10,000	4,963 contacts →
	Partial evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 1, 2026
6	Trend Micro	Partial evidence	Yoyogi, JapanHQ checked Sep 1, 2026	5,001-10,000	4,942 contacts →
	Partial evidence “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Source: RevenueBase Database · checked Sep 1, 2026
7	Rubrik	Indirect evidence	Reston, VA, US	1,001-5,000	4,381 contacts →
	Indirect evidence “Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Source: RevenueBase Database · checked Sep 1, 2026
8	Commvault	Indirect evidence	Tinton Falls, NJ, US	1,001-5,000	4,050 contacts →
	Indirect evidence “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Source: RevenueBase Database · checked Sep 1, 2026
9	Orange Cyberdefense	Partial evidence	BE	1,001-5,000	3,706 contacts →
	Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 1, 2026
10	Trellix	Partial evidence	Plano, TX, US	1,001-5,000	3,490 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 1, 2026
11	Arctic Wolf	Indirect evidence	Waterloo, ON, CA	1,001-5,000	3,200 contacts →
	Indirect evidence “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Source: RevenueBase Database · checked Sep 1, 2026
12	Sailpoint	Indirect evidence	London, GB	1,001-5,000	3,059 contacts →
	Indirect evidence “SailPoint equips the modern enterprise to seamlessly manage and secure access to applications and data through the lens of identity – at speed and scale.” Source: RevenueBase Database · checked Sep 1, 2026
13	Sentinelone	Partial evidence	Mountain View, CA, US	1,001-5,000	3,046 contacts →
	Partial evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 1, 2026
14	Qualys	Indirect evidence	Foster City, CA, US	1,001-5,000	3,042 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 1, 2026
15	Ivanti	Indirect evidence	San Jose, US	1,001-5,000	2,666 contacts →
	Indirect evidence “Ivanti is a global enterprise IT and security software company dedicated to unlocking human potential by managing, automating and protecting data and systems to empower continuous…” Source: RevenueBase Database · checked Sep 1, 2026
16	Darktrace	Partial evidence	Cambridge, GB	1,001-5,000	2,590 contacts →
	Partial evidence “Darktrace is a global leader in AI cybersecurity, providing the essential cybersecurity platform to secure organizations today and for an ever-changing future.” Source: RevenueBase Database · checked Sep 1, 2026
17	Mimecast	Indirect evidence	Cape Town South Africa, ZA	1,001-5,000	2,348 contacts →
	Indirect evidence “organizations.” Source: RevenueBase Database · checked Sep 1, 2026
18	OPTIV	Indirect evidence	Chantilly, VA, US	1,001-5,000	2,206 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 1, 2026
19	Tenable	Partial evidence	Columbia, MD, US	1,001-5,000	2,158 contacts →
	Partial evidence “Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.” Source: RevenueBase Database · checked Sep 1, 2026
20	Bitdefender	Partial evidence	Fort Lauderdale, FL, US	1,001-5,000	2,141 contacts →
	Partial evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 1, 2026
21	Barracuda	Partial evidence	Alpharetta, GA, US	1,001-5,000	2,108 contacts →
	Partial evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 1, 2026
22	Acronis	Partial evidence	Burlington, MA, US	1,001-5,000	2,081 contacts →
	Partial evidence “Acronis is a global cyber protection company delivering the only natively integrated cybersecurity, data protection, and infrastructure management platform for managed service…” Source: RevenueBase Database · checked Sep 1, 2026
23	N-Able	Indirect evidence	Lisboa, PT	1,001-5,000	1,881 contacts →
	Indirect evidence “N-able’s mission is to protect businesses against evolving cyberthreats with a unified cyber resiliency platform to manage, secure, and recover.” Source: RevenueBase Database · checked Sep 1, 2026
24	Beyondtrust	Partial evidence	Johns Creek, GA, US	1,001-5,000	1,650 contacts →
	Partial evidence “BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Source: RevenueBase Database · checked Sep 1, 2026
25	Fortra	Partial evidence	Eden Prairie, MN, US	1,001-5,000	1,640 contacts →
	Partial evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity startups. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity startups.
Partial evidence: Its own public description names part of cybersecurity startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity startups. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 19,588 cybersecurity startups worldwide

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Cybersecurity startups worldwide at a glance

As of Sep 1, 2026

38.6%Verified-email coverage

16.9%Mobile-number coverage

20.6Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

10,352

11-50

6,714

51-200

1,806

201-500

391

501-1,000

119

1,001-5,000

113

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity startups, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 63 countries, largest first: the United States, India, the United Kingdom, Brazil, Canada, France, Australia, Germany, the United Arab Emirates, Spain and 53 more. Country and city lists for cybersecurity startups are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cybersecurity startups”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity startups), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity startups, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 155,595 across the full list. 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 between September 1, 2026 and September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity startups by location

158 lists · largest first

Every Cybersecurity startups 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity startups, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity startups are there worldwide?

RevenueBase identified 19,588 cybersecurity startups worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Palo Alto Networks, headquartered in He, tops this list with the largest team on record.

Which country has the most cybersecurity startups?

The United States leads with 5,836 companies, followed by India (2,191) and the United Kingdom (1,362). Every cybersecurity startups list by country and city is linked on this page.

Which city has the most cybersecurity startups?

London leads with 586 headquartered companies, followed by Dubai (260) and Sao Paulo (255).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 155,595 verified decision-maker contacts tracked across these 19,588 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 1, 2026 and September 14, 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 Smart Search, 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.