Company lists · Data refreshed October 2026

Top 25 Attack surface management software companies worldwide

Name: Attack surface management software companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 9,433 companies tracked

RevenueBase identified 9,433 attack surface management software companies worldwide as of October 2026 and tracks 234,745 professional contacts across them, including 89,625 with verified work emails. The United States is the largest market and London the largest hub.

This list covers attack surface management software 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 October 1, 2026. Country and city lists for attack surface management software 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 Oct 1, 2026 86% judged on-target in blind review

9,433Companies

234,745Contacts tracked

89,625Verified emails

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The 25 largest attack surface management software companies worldwide

Ranked by team size

Top 25 of 9,433 attack surface management software companies worldwide, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to attack surface management software 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 Oct 1, 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 Oct 1, 2026
2	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Oct 1, 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 Oct 1, 2026
3	Private Sector	Indirect evidence	United StatesHQ checked Oct 1, 2026	n/a	12,771 contacts →
	Indirect evidence Source: RevenueBase Database · checked Oct 1, 2026
4	Hackerone	Partial evidence	San Francisco, CA, United StatesHQ checked Oct 1, 2026	n/a	6,058 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Oct 1, 2026
5	Trend Micro	Indirect evidence	Yoyogi, JapanHQ checked Oct 1, 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 Oct 1, 2026
6	Sophos	Indirect evidence	Abingdon, United KingdomHQ checked Oct 1, 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 Oct 1, 2026
7	Bugcrowd	Indirect evidence	San Francisco, CA, United StatesHQ checked Oct 1, 2026	n/a	3,649 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Oct 1, 2026
8	Trellix	Indirect evidence	Plano, TX, United StatesHQ checked Oct 1, 2026	1,001-5,000	3,447 contacts →
	Indirect 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 Oct 1, 2026
9	Qualys	Indirect evidence	Foster City, CA, United StatesHQ checked Oct 1, 2026	1,001-5,000	3,058 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 Oct 1, 2026
10	Sentinelone	Indirect evidence	Mountain View, CA, United StatesHQ checked Oct 1, 2026	1,001-5,000	3,052 contacts →
	Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Oct 1, 2026
11	Ivanti	Strong evidence	South Jordan, UT, United StatesHQ checked Oct 1, 2026	1,001-5,000	2,691 contacts →
	Strong evidence “Ivanti is a global enterprise IT and security software company that provides the trusted data authority for AI-driven, autonomous endpoint management.” Source: RevenueBase Database · checked Oct 1, 2026
12	Mimecast	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	1,001-5,000	2,304 contacts →
	Indirect evidence “organizations.” Source: RevenueBase Database · checked Oct 1, 2026
13	Tenable	Partial evidence	Columbia, MD, United StatesHQ checked Oct 1, 2026	1,001-5,000	2,173 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 Oct 1, 2026
14	Bitdefender	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 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 Oct 1, 2026
15	Acronis	Partial evidence	Schaffhausen, SwitzerlandHQ checked Oct 1, 2026	1,001-5,000	2,083 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 Oct 1, 2026
16	ESET	Indirect evidence	Bratislava, SlovakiaHQ checked Oct 1, 2026	1,001-5,000	1,719 contacts →
	Indirect evidence “When technology enables progress, ESET is here to protect it.” Source: RevenueBase Database · checked Oct 1, 2026
17	Beyondtrust	Indirect evidence	Johns Creek, GA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,669 contacts →
	Indirect evidence “BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Source: RevenueBase Database · checked Oct 1, 2026
18	Fortra	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Oct 1, 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 Oct 1, 2026
19	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Oct 1, 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 Oct 1, 2026
20	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Oct 1, 2026
21	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Oct 1, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Oct 1, 2026
22	SNYK	Partial evidence	Boston, MA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,188 contacts →
	Partial evidence “Snyk, the leader in secure AI software development, empowers organizations to build fast and stay secure by unleashing developer productivity and reducing business risk.” Source: RevenueBase Database · checked Oct 1, 2026
23	Forescout Technologies INC	Partial evidence	San Jose, CA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,181 contacts →
	Partial evidence “As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Source: RevenueBase Database · checked Oct 1, 2026
24	ARMIS	Indirect evidence	Tel Aviv, United StatesHQ checked Oct 1, 2026	501-1,000	1,112 contacts →
	Indirect evidence Source: RevenueBase Database · checked Oct 1, 2026
25	Checkmarx	Indirect evidence	Paramus, NJ, United StatesHQ checked Oct 1, 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 Oct 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: attack surface management software 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 attack surface management software companies.
Partial evidence: Its own public description names part of attack surface management software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name attack surface management software 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 9,433 attack surface management software companies worldwide

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Attack surface management software companies worldwide at a glance

As of Oct 1, 2026

38.2%Verified-email coverage

24.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

4,878

11-50

3,310

51-200

864

201-500

214

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 attack surface management software 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 attack surface management software companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “attack surface management software 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 attack surface management software 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 attack surface management software 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, 89,625 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 October 1, 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.

Attack surface management software companies by location

76 lists · largest first

Every Attack surface management software 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 attack surface management software 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 attack surface management software companies are there worldwide?

RevenueBase identified 9,433 attack surface management software companies worldwide as of October 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 attack surface management software companies?

The United States leads with 2,117 companies, followed by India (1,059) and the United Kingdom (502). Every attack surface management software companies list by country and city is linked on this page.

Which city has the most attack surface management software companies?

London leads with 240 headquartered companies, followed by Sao Paulo (122) and Bangalore (111).

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 89,625 verified decision-maker contacts tracked across these 9,433 companies.

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 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.