Company lists · Data refreshed September 2026

Top 25 Endpoint protection companies based in the United States

Name: Endpoint protection companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 290 companies tracked

RevenueBase identified 290 endpoint protection companies headquartered in the United States as of September 2026 and tracks 39,347 professional contacts across them, including 17,805 with verified work emails. New York is the largest hub.

This list covers endpoint protection 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 19, 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 19, 2026 86% judged on-target in blind review

290Companies

39,347Contacts tracked

17,805Verified emails

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The 25 largest endpoint protection companies based in the United States

Ranked by team size

Top 25 of 290 endpoint protection companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to endpoint protection 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Symantec	Partial evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	10001+	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 19, 2026
2	Crowdstrike	Partial evidence	Remote, United StatesHQ checked Sep 19, 2026	5,001-10,000	10,118 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 19, 2026
3	Sentinelone	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,052 contacts →
	Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 19, 2026
4	Tanium	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,270 contacts →
	Indirect evidence “Tanium is the Autonomous IT company.” Source: RevenueBase Database · checked Sep 19, 2026
5	Barracuda	Partial evidence	Campbell, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,157 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 19, 2026
6	Opswat	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	501-1,000	1,119 contacts →
	Indirect evidence “OPSWAT protects critical infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
7	Absolute Security	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	501-1,000	794 contacts →
	Partial evidence “Absolute Security is partnered with more than 28 of the world’s leading endpoint device manufacturers, embedded in the firmware of 600 million devices, trusted by global…” Source: RevenueBase Database · checked Sep 19, 2026
8	Huntress	Partial evidence	Columbia, MD, United StatesHQ checked Sep 19, 2026	501-1,000	696 contacts →
	Partial evidence “Protect Your Endpoints, Identities, Logs, and Employees.” Source: RevenueBase Database · checked Sep 19, 2026
9	Cybereason, A Levelblue Company	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	574 contacts →
	Partial 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 19, 2026
10	Guidance Software	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 19, 2026	501-1,000	492 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 19, 2026
11	Hirsch USA	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 19, 2026	201-500	240 contacts →
	Indirect evidence “Hirsch is a global leader in unified security solutions, helping enterprise and SMB organisations integrate perimeter security, intrusion detection, access control, video…” Source: RevenueBase Database · checked Sep 19, 2026
12	Carbon Black	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	239 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 19, 2026
13	Webroot	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 19, 2026	501-1,000	199 contacts →
	Indirect evidence “Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Source: RevenueBase Database · checked Sep 19, 2026
14	Eset North America	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	51-200	180 contacts →
	Indirect evidence “For more than 30 years we have been here helping to watch over and protect progress.” Source: RevenueBase Database · checked Sep 19, 2026
15	Xcitium	Indirect evidence	Remote, United StatesHQ checked Sep 19, 2026	501-1,000	171 contacts →
	Indirect evidence “Prevention-First Cybersecurity Powered by Patented ZeroDwell Containment Xcitium (formerly Comodo Security Solutions) is redefining cybersecurity with a prevention-first approach.” Source: RevenueBase Database · checked Sep 19, 2026
16	Defendedge	Strong evidence	Elmhurst, IL, United StatesHQ checked Sep 19, 2026	51-200	167 contacts →
	Strong 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 19, 2026
17	ESOFT	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 19, 2026	51-200	141 contacts →
	Indirect evidence “eSoft is a leader in providing Simply Better Network Security™ to businesses of nearly any size.” Source: RevenueBase Database · checked Sep 19, 2026
18	Point Wild	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	51-200	133 contacts →
	Partial evidence “Point Wild delivers best-in-class data breach resilience, response, and remediation for consumer and enterprise endpoints.” Source: RevenueBase Database · checked Sep 19, 2026
19	Authentic8	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 19, 2026	51-200	124 contacts →
	Indirect evidence “Authentic8 helps intelligence and security teams investigate the digital world without exposing who they are, where they are, or what they are working on.” Source: RevenueBase Database · checked Sep 19, 2026
20	Microsoft Intune	Partial evidence	Redmond, WA, United StatesHQ checked Sep 19, 2026	10001+	117 contacts →
	Partial evidence “Microsoft Intune empowers your organization to simplify endpoint management, help protect a hybrid workforce, and power better user experiences.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cylance INC	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 19, 2026	5,001-10,000	109 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 19, 2026
22	Threatdown	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	501-1,000	106 contacts →
	Partial 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 19, 2026
23	Centripetal	Indirect evidence	Reston, VA, United StatesHQ checked Sep 19, 2026	51-200	103 contacts →
	Indirect evidence “We stand in the breach so you don’t have to.” Source: RevenueBase Database · checked Sep 19, 2026
24	HP Wolf Security	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 19, 2026	n/a	75 contacts →
	Partial evidence “HP Wolf Security is world class endpoint security.” Source: RevenueBase Database · checked Sep 19, 2026
25	PC Matic	Indirect evidence	Sioux City, IA, United StatesHQ checked Sep 19, 2026	51-200	69 contacts →
	Indirect evidence “PC Matic was founded in by Rob Cheng and Dave Methvin with the sole purpose of creating a better way to diagnose common computer problems.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: endpoint protection companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names endpoint protection companies.
Partial evidence: Its own public description names part of endpoint protection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name endpoint protection companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 290 endpoint protection companies based in the United States

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Endpoint protection companies based in the United States at a glance

As of Sep 19, 2026

45.3%Verified-email coverage

135.7Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

101

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 290 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 protection 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 “endpoint protection 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 endpoint protection 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 endpoint protection 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, 17,805 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 19, 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 protection 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 endpoint protection companies are there based in the United States?

RevenueBase identified 290 endpoint protection 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?

Symantec, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most endpoint protection companies?

New York leads with 12 headquartered companies, followed by Austin (8) and San Diego (8).

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 17,805 verified decision-maker contacts tracked across these 290 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 19, 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.