Company lists · Data refreshed September 2026

Top 25 Threat detection AI companies worldwide

RevenueBase identified 2,835 threat detection AI companies worldwide as of September 2026 and tracks 77,980 professional contacts across them, including 35,701 with verified work emails. The United States is the largest market and London the largest hub.

This list covers threat detection AI 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 29, 2026. Country and city lists for threat detection AI 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 29, 2026 86% judged on-target in blind review
2,835Companies
77,980Contacts tracked
35,701Verified emails
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The 25 largest threat detection AI companies worldwide

Ranked by team size
Top 25 of 2,835 threat detection AI companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to threat detection AI 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
1Partial evidenceSunnyvale, CA, United StatesHQ checked Sep 29, 20261,001-5,0004,722 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidencePlano, TX, United StatesHQ checked Sep 29, 20261,001-5,0003,447 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 Sep 29, 2026
3Partial evidenceMountain View, CA, United StatesHQ checked Sep 29, 20261,001-5,0003,052 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 20261,001-5,0002,822 contacts →

Partial 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 29, 2026
5Strong evidenceMiami, FL, United StatesHQ checked Sep 29, 20261,001-5,0002,715 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceCambridge, United KingdomHQ checked Sep 29, 20261,001-5,0002,355 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 29, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0002,304 contacts →

Indirect evidence

“organizations.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceCampbell, CA, United StatesHQ checked Sep 29, 20261,001-5,0002,157 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 29, 2026
9Partial evidenceEden Prairie, MN, United StatesHQ checked Sep 29, 20261,001-5,0001,648 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceTampa, FL, United StatesHQ checked Sep 29, 20261,001-5,0001,285 contacts →

Indirect evidence

“ReliaQuest exists to Make Security Possible.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,130 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceBoston, MA, United StatesHQ checked Sep 29, 2026501-1,0001,030 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 29, 2026501-1,000876 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000789 contacts →

Strong evidence

“Dataminr has created a revolutionary AI platform for discovering real-time events, risks, and threats in public data, providing global organizations and corporations with critical…”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceSeattle, WA, United StatesHQ checked Sep 29, 2026501-1,000726 contacts →

Partial evidence

“ExtraHop is a leader in real-time network intelligence, empowering organizations with the high-fidelity context they need to power security and IT AI automation, detect risks…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceSan Jose, CA, United StatesHQ checked Sep 29, 2026501-1,000651 contacts →

Partial evidence

“Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 29, 2026501-1,000649 contacts →

Indirect evidence

“eSentire is a leader in Controlled Autonomy SecOps, protecting organizations across 35+ industries around the world.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceMumbai, IndiaHQ checked Sep 29, 2026201-500425 contacts →

Indirect evidence

“Enterprise security is too complex, too costly, and too fragmented.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceOttawa, ON, CanadaHQ checked Sep 29, 2026201-500410 contacts →

Indirect evidence

“When data is complex and the mission is critical, law enforcement, intelligence agencies, and security organizations trust JSI.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceDenver, CO, United StatesHQ checked Sep 29, 2026201-500408 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 2026201-500386 contacts →

Partial evidence

“SEON is the AI command center for fraud prevention and AML compliance.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500375 contacts →

Partial evidence

“We protect the world’s critical infrastructure from cyber threats.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500364 contacts →

Partial evidence

“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500359 contacts →

Partial evidence

“Torq is the AI SOC platform that combines agentic insights and automation so that enterprises can triage, investigate, and respond to actual risks, faster.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceWaltham, MA, United StatesHQ checked Sep 29, 2026201-500341 contacts →

Indirect evidence

“Evolv Technologies Holdings, Inc (NASDAQ: EVLV) is a leading security technology company with products designed to transform human security to make a safer, faster and better…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 2,835 threat detection AI companies worldwide

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Threat detection AI companies worldwide at a glance

As of Sep 29, 2026
45.8%Verified-email coverage
27.5Average contacts per company
11-50Median size (employees)
3.2%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,411
11-50
962
51-200
326
201-500
70
501-1,000
25
1,001-5,000
25
5,001-10,000
6
10001+
4

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 threat detection AI 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 threat detection AI companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “threat detection AI 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 threat detection AI 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 threat detection AI 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, 35,701 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 29, 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.

Threat detection AI companies by location

17 lists · largest first

Every Threat detection AI 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 threat detection AI 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 threat detection AI companies are there worldwide?

RevenueBase identified 2,835 threat detection AI 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?

Proofpoint, headquartered in Sunnyvale, tops this list with the largest team on record.

Which country has the most threat detection AI companies?

The United States leads with 907 companies, followed by India (210) and the United Kingdom (157). Every threat detection AI companies list by country and city is linked on this page.

Which city has the most threat detection AI companies?

London leads with 92 headquartered companies, followed by San Francisco (76) and New York (64).

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 35,701 verified decision-maker contacts tracked across these 2,835 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 29, 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.