Company lists · Data refreshed September 2026

Top 25 Endpoint security companies based in the United States

Name: Endpoint security 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 2, 2026 379 companies tracked

RevenueBase identified 379 endpoint security companies headquartered in the United States as of September 2026 and tracks 39,381 professional contacts across them, including 16,474 with verified work emails and 9,730 with mobile numbers. New York is the largest hub.

This list covers endpoint 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

379Companies

39,381Contacts tracked

16,474Verified emails

9,730Mobile numbers

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The 25 largest endpoint security companies based in the United States

Ranked by team size

Top 25 of 379 endpoint security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to endpoint 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Symantec	Strong evidence	San Jose, CA, United States	10001+	11,179 contacts →
	Strong 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 2, 2026
2	Crowdstrike	Partial evidence	Remote, United States	5,001-10,000	10,059 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 2, 2026
3	Sentinelone	Indirect evidence	Mountain View, CA, United States	1,001-5,000	3,046 contacts →
	Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 2, 2026
4	Bitdefender	Indirect evidence	Fort Lauderdale, FL, United States	1,001-5,000	2,141 contacts →
	Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 2, 2026
5	Barracuda	Indirect evidence	Alpharetta, GA, United States	1,001-5,000	2,108 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 2, 2026
6	Absolute Security	Strong evidence	Seattle, WA, United States	501-1,000	789 contacts →
	Strong 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 2, 2026
7	Huntress	Partial evidence	Columbia, MD, United States	501-1,000	694 contacts →
	Partial evidence “Protect Your Endpoints, Identities, Logs, and Employees.” Source: RevenueBase Database · checked Sep 2, 2026
8	SSH Communications Security	Indirect evidence	New York, NY, United States	51-200	590 contacts →
	Indirect evidence “We are a European cybersecurity company that helps businesses secure critical data and communications between systems, automated applications, and people with defensive…” Source: RevenueBase Database · checked Sep 2, 2026
9	Guidance Software	Indirect evidence	Las Vegas, NV, United States	501-1,000	496 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 2, 2026
10	Lookout	Indirect evidence	Boston, MA, United States	201-500	491 contacts →
	Indirect evidence “Lookout, Inc.” Source: RevenueBase Database · checked Sep 2, 2026
11	K7 Computing	Partial evidence	Cerritos, CA, United States	201-500	358 contacts →
	Partial evidence “K7 Computing is a global cyber security pioneer with over 30 year’s expertise in the cyber security industry.” Source: RevenueBase Database · checked Sep 2, 2026
12	Sonitrol	Partial evidence	Indianapolis, United States	10001+	302 contacts →
	Partial evidence “Sonitrol is the industry leader in verified electronic security and provides customers with a single source of integrated security solutions for intrusion, video, access and fire.” Source: RevenueBase Database · checked Sep 2, 2026
13	Hirsch USA	Partial evidence	Santa Ana, CA, United States	201-500	234 contacts →
	Partial 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 2, 2026
14	Eset North America	Indirect evidence	San Diego, CA, United States	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 2, 2026
15	Xcitium	Partial evidence	Remote, United States	501-1,000	172 contacts →
	Partial 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 2, 2026
16	Defendedge	Partial evidence	Elmhurst, IL, United States	51-200	166 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 2, 2026
17	ESOFT	Partial evidence	Broomfield, CO, United States	51-200	140 contacts →
	Partial evidence “eSoft is a leader in providing Simply Better Network Security™ to businesses of nearly any size.” Source: RevenueBase Database · checked Sep 2, 2026
18	TODYL	Indirect evidence	Denver, CO, United States	51-200	134 contacts →
	Indirect evidence “Our platform empowers businesses with comprehensive cybersecurity delivered through a single-agent platform.” Source: RevenueBase Database · checked Sep 2, 2026
19	Point Wild	Partial evidence	Boston, MA, United States	51-200	131 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 2, 2026
20	Authentic8	Partial evidence	Washington, DC, United States	51-200	124 contacts →
	Partial 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 2, 2026
21	Cylance INC	Strong evidence	Eden Prairie, MN, United States	5,001-10,000	110 contacts →
	Strong 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 2, 2026
22	Microsoft Intune	Partial evidence	Redmond, WA, United States	10001+	109 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 2, 2026
23	Centripetal	Indirect evidence	Portsmouth, NH, United States	51-200	105 contacts →
	Indirect evidence “We stand in the breach so you don’t have to.” Source: RevenueBase Database · checked Sep 2, 2026
24	Threatdown	Partial evidence	Santa Clara, CA, United States	501-1,000	104 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 2, 2026
25	Kandji	Strong evidence	Miami, FL, United States	201-500	98 contacts →
	Strong evidence “Kandji is now Iru- Kandji is the Apple endpoint security platform.” Source: RevenueBase Database · checked Sep 2, 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 security 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 security companies.
Partial evidence: Its own public description names part of endpoint security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name endpoint security 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 379 endpoint security companies based in the United States

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Endpoint security companies based in the United States at a glance

As of Sep 2, 2026

41.8%Verified-email coverage

24.7%Mobile-number coverage

103.9Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

149

11-50

135

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 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 “endpoint 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 endpoint 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 endpoint 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, 16,474 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 2, 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 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 endpoint security companies are there based in the United States?

RevenueBase identified 379 endpoint 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?

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

Which city has the most endpoint security companies?

New York leads with 20 headquartered companies, followed by San Francisco (14) and Austin (10).

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 16,474 verified decision-maker contacts tracked across these 379 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 2, 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.