Company lists · Data refreshed September 2026

Top 25 Software security companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 4,125 companies tracked

RevenueBase identified 4,125 software security companies worldwide as of September 2026 and tracks 131,793 professional contacts across them, including 49,760 with verified work emails. The United States is the largest market and London the largest hub.

This list covers software security companies 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 21, 2026. Country and city lists for software security companies 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

4,125Companies

131,793Contacts tracked

49,760Verified emails

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The 25 largest software security companies worldwide

Ranked by team size

Top 25 of 4,125 software security companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to software security companies: 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	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	10001+	18,431 contacts →
	Indirect 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 21, 2026
2	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 21, 2026	10001+	14,289 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 21, 2026
3	Symantec	Partial evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	10001+	11,169 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 21, 2026
4	Trend Micro	Indirect evidence	Yoyogi, JapanHQ checked Sep 21, 2026	5,001-10,000	4,942 contacts →
	Indirect evidence “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Source: RevenueBase Database · checked Sep 21, 2026
5	Sophos	Indirect evidence	Abingdon, United KingdomHQ checked Sep 21, 2026	5,001-10,000	4,925 contacts →
	Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 21, 2026
6	F-Secure Corporation	Partial evidence	Helsinki, FinlandHQ checked Sep 21, 2026	n/a	4,766 contacts →
	Partial evidence “F-Secure is a human-first, AI-powered consumer cyber security experience company with 38 years of expertise in tackling digital threats.” Source: RevenueBase Database · checked Sep 21, 2026
7	Bitdefender	Indirect evidence	Bucuresti, RomaniaHQ checked Sep 21, 2026	1,001-5,000	2,172 contacts →
	Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
8	Barracuda	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,157 contacts →
	Indirect evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 21, 2026
9	ESET	Indirect evidence	Bratislava, SlovakiaHQ checked Sep 21, 2026	1,001-5,000	1,719 contacts →
	Indirect evidence “When technology enables progress, ESET is here to protect it.” Source: RevenueBase Database · checked Sep 21, 2026
10	Fortra	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,648 contacts →
	Indirect evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
11	Quick Heal	Partial evidence	Pune, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,510 contacts →
	Partial evidence “Quick Heal Technologies Limited is one of the leading providers of IT Security and Data Protection Solutions with a strong footprint in India and an evolving global presence.” Source: RevenueBase Database · checked Sep 21, 2026
12	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,252 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
13	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 21, 2026
14	Checkmarx	Indirect evidence	Paramus, NJ, United StatesHQ checked Sep 21, 2026	501-1,000	1,042 contacts →
	Indirect evidence “Checkmarx helps the world’s largest enterprises get ahead of application risk without slowing down development.” Source: RevenueBase Database · checked Sep 21, 2026
15	Irdeto	Indirect evidence	Hoofddorp, NetherlandsHQ checked Sep 21, 2026	1,001-5,000	1,026 contacts →
	Indirect evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 21, 2026
16	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	874 contacts →
	Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 21, 2026
17	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 21, 2026	201-500	743 contacts →
	Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 21, 2026
18	Positive Technologies	Indirect evidence	United StatesHQ checked Sep 21, 2026	1,001-5,000	686 contacts →
	Indirect evidence “Positive Technologies is a leading developer of products, solutions and services for results-driven cybersecurity that enable detection and prevention of attacks before they cause…” Source: RevenueBase Database · checked Sep 21, 2026
19	Vectra AI	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	501-1,000	651 contacts →
	Indirect evidence “Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.” Source: RevenueBase Database · checked Sep 21, 2026
20	Malwarebytes	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	501-1,000	604 contacts →
	Partial evidence “Malwarebytes is reimagining security to safeguard devices, data, and people, no matter their location, lifestyle or means.” Source: RevenueBase Database · checked Sep 21, 2026
21	SSH Communications Security	Indirect evidence	Helsinki, FinlandHQ checked Sep 21, 2026	51-200	593 contacts →
	Indirect evidence “We are a European cybersecurity company that helps businesses secure critical data and communications between systems, automated applications, and people with defensive…” Source: RevenueBase Database · checked Sep 21, 2026
22	Advens	Indirect evidence	Paris, ItalyHQ checked Sep 21, 2026	501-1,000	586 contacts →
	Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
23	Ahnlab, INC	Indirect evidence	Seongnam-si, South KoreaHQ checked Sep 21, 2026	1,001-5,000	581 contacts →
	Indirect evidence “Founded in 1995, AhnLab, Inc, the global cybersecurity company, delivers comprehensive protection for endpoints, networks, transactions, and essential services.” Source: RevenueBase Database · checked Sep 21, 2026
24	Group-Ib	Indirect evidence	SingaporeHQ checked Sep 21, 2026	501-1,000	528 contacts →
	Indirect evidence “Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Source: RevenueBase Database · checked Sep 21, 2026
25	Paramount Computer Systems	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 21, 2026	201-500	525 contacts →
	Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 21, 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: software security companies. 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 software security companies.
Partial evidence: Its own public description names part of software security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software security companies. 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 4,125 software security companies worldwide

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Software security companies worldwide at a glance

As of Sep 21, 2026

37.8%Verified-email coverage

31.9Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,912

11-50

1,489

51-200

453

201-500

123

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 software security companies, 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: Every country. Country and city lists for software security companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “software security companies”. 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 software security companies), 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 software security companies, 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, 49,760 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 on September 21, 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.

Software security companies by location

22 lists · largest first

Every Software security 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 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 software security companies, 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 software security companies are there worldwide?

RevenueBase identified 4,125 software security companies 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 Santa Clara, tops this list with the largest team on record.

Which country has the most software security companies?

The United States leads with 807 companies, followed by India (447) and the United Kingdom (186). Every software security companies list by country and city is linked on this page.

Which city has the most software security companies?

London leads with 74 headquartered companies, followed by Dubai (54) and Sao Paulo (53).

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 49,760 verified decision-maker contacts tracked across these 4,125 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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.