Company lists · Data refreshed September 2026

Top 25 Artificial intelligence security companies based in the United States

RevenueBase identified 1,709 artificial intelligence security companies headquartered in the United States as of September 2026 and tracks 154,434 professional contacts across them, including 81,562 with verified work emails. San Francisco is the largest hub.

This list covers artificial intelligence security companies 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 27, 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 27, 2026 86% judged on-target in blind review
1,709Companies
154,434Contacts tracked
81,562Verified emails
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The 25 largest artificial intelligence security companies based in the United States

Ranked by team size
Top 25 of 1,709 artificial intelligence security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to artificial intelligence 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 27, 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 27, 2026
2Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 27, 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 27, 2026
3Partial evidenceRemote, United StatesHQ checked Sep 27, 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 27, 2026
4Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 27, 20265,001-10,0007,668 contacts →

Indirect evidence

“Check Point Software Technologies Ltd.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceMiami, CO, United StatesHQ checked Sep 27, 20261,001-5,0005,403 contacts →

Indirect evidence

“AI-powered automation for every decision.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 27, 20261,001-5,0004,722 contacts →

Indirect evidence

“Intent-based protection for every human and every AI agent, across all data.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidencePalo Alto, CA, United StatesHQ checked Sep 27, 20261,001-5,0004,448 contacts →

Partial 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 27, 2026
8Indirect evidenceTinton Falls, NJ, United StatesHQ checked Sep 27, 20261,001-5,0004,032 contacts →

Indirect evidence

“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026n/a3,649 contacts →

Partial 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 Sep 27, 2026
10Strong evidencePlano, TX, United StatesHQ checked Sep 27, 20261,001-5,0003,447 contacts →

Strong 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 27, 2026
11Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 27, 20261,001-5,0003,056 contacts →

Partial evidence

“Netskope (NASDAQ: NTSK), a leader in modern security and networking for the cloud and AI era, addresses the needs of both security and networking teams by providing optimized…”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceMountain View, CA, United StatesHQ checked Sep 27, 20261,001-5,0003,052 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261,001-5,0002,822 contacts →

Indirect evidence

“Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceMiami, FL, United StatesHQ checked Sep 27, 20261,001-5,0002,715 contacts →

Partial evidence

“Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceSouth Jordan, UT, United StatesHQ checked Sep 27, 20261,001-5,0002,691 contacts →

Partial 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 27, 2026
16Partial evidenceClearwater, FL, United StatesHQ checked Sep 27, 20261,001-5,0002,367 contacts →

Partial evidence

“KnowBe4 empowers the modern workforce to make smarter security decisions every day.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceCampbell, CA, United StatesHQ checked Sep 27, 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 27, 2026
18Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 27, 20261,001-5,0001,648 contacts →

Indirect evidence

“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceMclean, VA, United StatesHQ checked Sep 27, 20261,001-5,0001,516 contacts →

Partial evidence

“The proven national security AI services company.[Mission Success = Trusted Human Expertise + Secure Agentic AI] Our teams have been embedded in missions that don't allow for…”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceTampa, FL, United StatesHQ checked Sep 27, 20261,001-5,0001,285 contacts →

Partial evidence

“ReliaQuest exists to Make Security Possible.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261,001-5,0001,279 contacts →

Partial evidence

“Founded in 2015, Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceAustin, TX, United StatesHQ checked Sep 27, 202610001+1,217 contacts →

Indirect evidence

“On Dec.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261,001-5,0001,130 contacts →

Partial evidence

“Cyera is the industry-leading AI Security Platform.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceSan Jose, CA, United StatesHQ checked Sep 27, 2026501-1,000889 contacts →

Partial evidence

“Netenrich is redefining security operations by shifting the focus from "efficiency"(speed) to "efficacy"(comprehensive coverage).”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceBroomfield, CO, United StatesHQ checked Sep 27, 2026501-1,000876 contacts →

Partial evidence

“Exabeam is the leader in Behavior Intelligence for the agentic enterprise.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 1,709 artificial intelligence security companies based in the United States

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Artificial intelligence security companies based in the United States at a glance

As of Sep 27, 2026
52.8%Verified-email coverage
90.4Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · San Francisco
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
686
11-50
613
51-200
264
201-500
69
501-1,000
31
1,001-5,000
33
5,001-10,000
3
10001+
8

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 1,709 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 artificial intelligence 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “artificial intelligence 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 artificial intelligence 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 artificial intelligence security companies, 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, 81,562 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 27, 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 artificial intelligence 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 artificial intelligence security companies are there based in the United States?

RevenueBase identified 1,709 artificial intelligence security companies 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 artificial intelligence security companies?

San Francisco leads with 117 headquartered companies, followed by New York (111) and Austin (58).

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 81,562 verified decision-maker contacts tracked across these 1,709 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 27, 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.