Company lists · Data refreshed September 2026

Top 25 Endpoint detection and response platforms based in the United States

RevenueBase identified 105 endpoint detection and response platforms headquartered in the United States as of September 2026 and tracks 21,044 professional contacts across them, including 13,826 with verified work emails. San Francisco is the largest hub.

This list covers endpoint detection and response platforms 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
105Companies
21,044Contacts tracked
13,826Verified emails
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The 25 largest endpoint detection and response platforms based in the United States

Ranked by team size
Top 25 of 105 endpoint detection and response platforms 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 endpoint detection and response platforms: 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 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
2Partial evidenceMountain View, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,052 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceBellevue, WA, United StatesHQ checked Sep 28, 20261,001-5,0002,270 contacts →

Indirect evidence

“Tanium is the Autonomous IT company.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026501-1,000726 contacts →

Indirect 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 28, 2026
5Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026501-1,000696 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceSan Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
7Indirect 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
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026201-500461 contacts →

Partial 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 28, 2026
9Indirect 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
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202651-200263 contacts →

Partial evidence

“CENTEGIX is the leader in incident response solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,000191 contacts →

Strong evidence

“NetWitness provides comprehensive and highly scalable threat detection and response capabilities for organizations around the world.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 2026501-1,000177 contacts →

Partial evidence

“Alert Logic, a LevelBlue company, helps organizations detect threats earlier, respond faster, and reduce cyber risk across modern IT environments.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceElmhurst, IL, United StatesHQ checked Sep 28, 202651-200167 contacts →

Partial evidence

“DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202651-200133 contacts →

Indirect evidence

“By shining a bright light on the darkest corners of security operations, Stellar Cyber empowers organizations to see incoming attacks, know how to fight them, and act decisively –…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 20265,001-10,000109 contacts →

Partial evidence

“As of February 3, 2025, Cylance® endpoint security assets, including CylanceENDPOINT, CylanceEDGE and CylanceMDR, are now part of Arctic Wolf.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 2026501-1,000106 contacts →

Strong evidence

“ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceSan Ramon, CA, United StatesHQ checked Sep 28, 202651-20094 contacts →

Strong evidence

“Userful delivers a unifying platform for operational awareness and response.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceReston, VA, United StatesHQ checked Sep 28, 202651-20065 contacts →

Partial evidence

“Silent Push provides a Preemptive Cyber Defense platform that gives real-time visibility into previously unknown adversary infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSouthlake, TX, United StatesHQ checked Sep 28, 202651-20062 contacts →

Indirect evidence

“Gradient Cyber: Built for Mid-Market Security Teams Who Can't Afford to Get It Wrong Mid-market companies face the same threats as the Fortune 500, but without the budget, staff…”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceIrvine, CA, United StatesHQ checked Sep 28, 202651-20057 contacts →

Strong evidence

“At LMNTRIX, we help organizations take control of their cybersecurity by delivering advanced threat detection, proactive response, and deep adversarial insights-without the…”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceVirginia Beach, VA, United StatesHQ checked Sep 28, 202611-5045 contacts →

Strong evidence

“Skycep is an endpoint security service provider with various solutions for Incident Detection Response and Vulnerability Management.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5044 contacts →

Strong evidence

“Miggo is the first Application Detection and Response (ADR) platform on a mission to stop application breaches.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceClaymont, DE, United StatesHQ checked Sep 28, 202611-5038 contacts →

Strong evidence

“DataCapable is a software platform that detects and monitors threats in real-time allowing businesses, organizations and government to prepare and respond faster and more…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceFairfax, VA, United StatesHQ checked Sep 28, 202651-20038 contacts →

Indirect evidence

“Tychon, LLC is a cybersecurity software company founded by former U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceCosta Mesa, CA, United StatesHQ checked Sep 28, 202651-20037 contacts →

Partial evidence

“Syxsense is the leading provider of innovative, intuitive technology that sees all and knows everything about every endpoint, in every location, everywhere inside and outside the…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 105 endpoint detection and response platforms based in the United States

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Endpoint detection and response platforms based in the United States at a glance

As of Sep 28, 2026
65.7%Verified-email coverage
200.4Average contacts per company
11-50Median size (employees)
7.6%Largest-city concentration · San Francisco
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
41
51-200
27
201-500
3
501-1,000
5
1,001-5,000
6
5,001-10,000
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 105 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 endpoint detection and response platforms, 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 “endpoint detection and response platforms”. 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 endpoint detection and response platforms), 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 endpoint detection and response platforms, 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, 13,826 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 endpoint detection and response platforms, 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 endpoint detection and response platforms are there based in the United States?

RevenueBase identified 105 endpoint detection and response platforms 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?

Crowdstrike, headquartered in Remote, tops this list with the largest team on record.

Which city has the most endpoint detection and response platforms?

San Francisco leads with 8 headquartered companies, followed by New York (5) and Atlanta (3).

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 13,826 verified decision-maker contacts tracked across these 105 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.