Company lists · Data refreshed September 2026

Top 25 Enterprise security software developers based in the United States

RevenueBase identified 916 enterprise security software developers headquartered in the United States as of September 2026 and tracks 120,254 professional contacts across them, including 55,903 with verified work emails. New York is the largest hub.

This list covers enterprise security software developers headquartered in the United States, 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 28, 2026.

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 28, 2026 86% judged on-target in blind review
916Companies
120,254Contacts tracked
55,903Verified emails
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The 25 largest enterprise security software developers based in the United States

Ranked by team size
Top 25 of 916 enterprise security software developers based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise security software developers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
2Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
3Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
4Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202610001+11,094 contacts →

Indirect evidence

“CA Technologies is now a Broadcom company.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceRemote, United StatesHQ checked Sep 28, 20265,001-10,00010,118 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20265,001-10,0006,262 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 20261,001-5,0004,868 contacts →

Indirect evidence

“We’re creating what’s next in online protection.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceNewton, MA, United StatesHQ checked Sep 28, 20261,001-5,0003,302 contacts →

Partial evidence

“CyberArk is the global leader in Identity Security.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceMountain View, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,052 contacts →

Indirect evidence

“SentinelOne is the world's leading AI-powered cybersecurity platform.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0002,886 contacts →

Partial 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 28, 2026
11Strong evidenceSouth Jordan, UT, United StatesHQ checked Sep 28, 20261,001-5,0002,691 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 Sep 28, 2026
12Indirect evidenceCampbell, CA, United StatesHQ checked Sep 28, 20261,001-5,0002,157 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 28, 2026
13Indirect evidenceLehi, UT, United StatesHQ checked Sep 28, 20261,001-5,0001,767 contacts →

Indirect evidence

“As the leading provider of digital trust, DigiCert solutions help you engage online with confidence, knowing your data and connections are secure.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceJohns Creek, GA, United StatesHQ checked Sep 28, 20261,001-5,0001,669 contacts →

Indirect evidence

“BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,636 contacts →

Partial evidence

“Forcepoint simplifies security for global businesses and governments.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,252 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 28, 2026
17Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 202610001+1,217 contacts →

Indirect evidence

“On Dec.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceAshburn, VA, United StatesHQ checked Sep 28, 2026501-1,000629 contacts →

Partial evidence

“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceHoboken, NJ, United StatesHQ checked Sep 28, 2026501-1,000611 contacts →

Strong evidence

“For security teams charged with defending hybrid and multi-cloud environments, Semperis ensures the integrity and availability of critical enterprise directory services at every…”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 2026501-1,000604 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 28, 2026
21Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 2026201-500497 contacts →

Strong evidence

“Seclore is the Data Security Intelligence company for the era of enterprise AI, helping organizations turn data and AI risk into readiness.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidencePasadena, CA, United StatesHQ checked Sep 28, 2026501-1,000492 contacts →

Indirect evidence

“Guidance (NASDAQ: GUID) exists to turn chaos and the unknown into order and the known-so that companies and their customers can go about their daily lives as usual without worry…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceAnn Arbor, MI, United StatesHQ checked Sep 28, 2026501-1,000435 contacts →

Partial evidence

“We are Duo, and we’re here to democratize security.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceDenver, CO, United StatesHQ checked Sep 28, 2026201-500408 contacts →

Indirect evidence

“Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSouthlake, TX, United StatesHQ checked Sep 28, 2026201-500403 contacts →

Partial evidence

“Trackforce stands at the forefront of the physical security industry, combining over 40 years of collective security expertise with cutting-edge innovation.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 916 enterprise security software developers based in the United States

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Enterprise security software developers based in the United States at a glance

As of Sep 28, 2026
46.5%Verified-email coverage
131.3Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
368
11-50
299
51-200
150
201-500
40
501-1,000
24
1,001-5,000
21
5,001-10,000
5
10001+
9

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 916 companies.

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 enterprise security software developers, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “enterprise security software developers”. 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 enterprise security software developers), 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 enterprise security software developers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 55,903 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 28, 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.

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 enterprise security software developers, 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 enterprise security software developers are there based in the United States?

RevenueBase identified 916 enterprise security software developers headquartered in the United States 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 city has the most enterprise security software developers?

New York leads with 41 headquartered companies, followed by Austin (32) and San Francisco (16).

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 55,903 verified decision-maker contacts tracked across these 916 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 28, 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.