Company lists · Data refreshed September 2026

Top 25 Network detection and response software companies based in the United States

RevenueBase identified 376 network detection and response software companies headquartered in the United States as of September 2026 and tracks 35,476 professional contacts across them, including 18,043 with verified work emails. New York is the largest hub.

This list covers network detection and response software 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 14, 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 14, 2026 86% judged on-target in blind review
376Companies
35,476Contacts tracked
18,043Verified emails
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The 25 largest network detection and response software companies based in the United States

Ranked by team size
Top 25 of 376 network detection and response software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to network detection and response 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePlano, TX, United StatesHQ checked Sep 14, 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 14, 2026
2Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 14, 20261,001-5,0003,145 contacts →

Indirect evidence

“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceMountain View, CA, United StatesHQ checked Sep 14, 20261,001-5,0003,052 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 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 14, 2026
5Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 14, 20261,001-5,0002,813 contacts →

Partial evidence

“Infoblox unites networking and security to deliver unmatched performance and protection.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 14, 20261,001-5,0001,184 contacts →

Partial evidence

“Gigamon® protects the hybrid cloud networks and data of the world’s most complex organizations.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261,001-5,000944 contacts →

Strong evidence

“Secureworks, a Sophos Company, empowers organizations worldwide with advanced Managed Detection and Response (MDR) services, our security operations platform Taegis XDR, and…”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 14, 2026501-1,000876 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 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 14, 2026
10Indirect evidencePlano, TX, United StatesHQ checked Sep 14, 2026501-1,000712 contacts →

Indirect evidence

“Securonix is transforming how security operations are delivered, measured, and scaled.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceColumbia, MD, United StatesHQ checked Sep 14, 2026501-1,000696 contacts →

Indirect evidence

“Protect Your Endpoints, Identities, Logs, and Employees.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000683 contacts →

Indirect evidence

“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.”

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceSan Jose, CA, United StatesHQ checked Sep 14, 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 14, 2026
14Strong evidenceSan Diego, CA, United StatesHQ checked Sep 14, 20261,001-5,000574 contacts →

Strong evidence

“Cybereason, a LevelBlue company, is a global cybersecurity leader delivering advanced endpoint detection and response (EDR) and industry recognized consulting services to support…”

Source: RevenueBase Database · checked Sep 14, 2026
15Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500461 contacts →

Strong evidence

“Corelight transforms network data into definitive evidence, powering AI-driven detection and expert-authored workflows, and enabling the AI SOC ecosystem.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceHerndon, VA, United StatesHQ checked Sep 14, 2026201-500436 contacts →

Indirect evidence

“Expel is the leading agentic MDR provider.”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 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 14, 2026
18Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500375 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceEl Segundo, CA, United StatesHQ checked Sep 14, 2026201-500325 contacts →

Indirect evidence

“Gurucul is a security analytics company founded in data science that delivers radical clarity about cyber risk.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 2026201-500317 contacts →

Indirect evidence

“At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 2026201-500295 contacts →

Partial evidence

“Devo Technology delivers a real-time security data platform that serves as the foundation of your security operations and includes data-powered threat detection, automated case…”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceMiami, FL, United StatesHQ checked Sep 14, 2026201-500295 contacts →

Indirect evidence

“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidencePalo Alto, CA, United StatesHQ checked Sep 14, 2026201-500287 contacts →

Partial evidence

“Deepwatch provides an AI-native MDR platform that helps organizations detect, investigate, contain, and respond to threats in real time.”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceMorrisville, NC, United StatesHQ checked Sep 14, 2026201-500287 contacts →

Indirect evidence

“Today’s organizations are playing catch-up, chasing alerts with a scarcity of experienced people, time and budget.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidencePlano, TX, United StatesHQ checked Sep 14, 2026201-500282 contacts →

Indirect evidence

“Most MDR providers send alerts and call it coverage, but security teams don't need more notifications.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 376 network detection and response software companies based in the United States

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Network detection and response software companies based in the United States at a glance

As of Sep 14, 2026
50.9%Verified-email coverage
94.4Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
90
11-50
149
51-200
84
201-500
23
501-1,000
10
1,001-5,000
15
5,001-10,000
2
10001+
2

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 376 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 network detection and response 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “network detection and response 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 network detection and response 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 network detection and response software 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, 18,043 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 14, 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 network detection and response 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 network detection and response software companies are there based in the United States?

RevenueBase identified 376 network detection and response software 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?

Trellix, headquartered in Plano, tops this list with the largest team on record.

Which city has the most network detection and response software companies?

New York leads with 20 headquartered companies, followed by San Francisco (15) and San Jose (13).

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 18,043 verified decision-maker contacts tracked across these 376 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 14, 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.