Company lists · Data refreshed September 2026

Top 25 Enterprise endpoint security services based in the United States

RevenueBase identified 278 enterprise endpoint security services headquartered in the United States as of September 2026 and tracks 51,514 professional contacts across them, including 24,741 with verified work emails. San Francisco is the largest hub.

This list covers enterprise endpoint security services 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 21, 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 21, 2026 86% judged on-target in blind review
278Companies
51,514Contacts tracked
24,741Verified emails
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The 25 largest enterprise endpoint security services based in the United States

Ranked by team size
Top 25 of 278 enterprise endpoint security services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise endpoint security services: 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 evidenceSunnyvale, CA, United StatesHQ checked Sep 21, 202610001+14,289 contacts →

Indirect evidence

“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceSan Jose, CA, United StatesHQ checked Sep 21, 202610001+11,169 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 21, 2026
3Partial evidenceRemote, United StatesHQ checked Sep 21, 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 21, 2026
4Indirect evidenceMountain View, CA, United StatesHQ checked Sep 21, 20261,001-5,0003,052 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceBellevue, WA, United StatesHQ checked Sep 21, 20261,001-5,0002,270 contacts →

Indirect evidence

“Tanium is the Autonomous IT company.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceAustin, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,905 contacts →

Indirect evidence

“NinjaOne unifies IT to simplify work for nearly customers in 140+ countries.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceSeattle, WA, United StatesHQ checked Sep 21, 2026501-1,000794 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 21, 2026
8Partial evidenceColumbia, MD, United StatesHQ checked Sep 21, 2026501-1,000696 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 2026501-1,000528 contacts →

Partial evidence

“Hexnode offers AI-powered solutions that help businesses streamline endpoint management, user identity, and threat defense.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceBoston, MA, United StatesHQ checked Sep 21, 2026201-500494 contacts →

Indirect evidence

“Lookout, Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidencePasadena, CA, United StatesHQ checked Sep 21, 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 21, 2026
12Strong evidenceSanta Ana, CA, United StatesHQ checked Sep 21, 2026201-500240 contacts →

Strong 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 21, 2026
13Strong evidencePalo Alto, CA, United StatesHQ checked Sep 21, 20261,001-5,000239 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 21, 2026
14Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 21, 2026501-1,000199 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 21, 2026
15Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 21, 202651-200180 contacts →

Indirect evidence

“For more than 30 years we have been here helping to watch over and protect progress.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 21, 202651-200159 contacts →

Indirect evidence

“At VLCM (pronounced val-com), we have over 40 years of experience Getting IT Right for our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
17Strong evidenceMountain View, CA, United StatesHQ checked Sep 21, 2026501-1,000141 contacts →

Strong evidence

“MobileIron is redefining enterprise security with the industry’s first mobile-centric security platform for the Everywhere Enterprise.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceBroomfield, CO, United StatesHQ checked Sep 21, 202651-200141 contacts →

Partial evidence

“eSoft is a leader in providing Simply Better Network Security™ to businesses of nearly any size.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceDenver, CO, United StatesHQ checked Sep 21, 202651-200135 contacts →

Indirect evidence

“Our platform empowers businesses with comprehensive cybersecurity delivered through a single-agent platform.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceRedmond, WA, United StatesHQ checked Sep 21, 202610001+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 21, 2026
21Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202651-200109 contacts →

Partial evidence

“Action1 is an autonomous endpoint management platform trusted by many Fortune 500 companies.”

Source: RevenueBase Database · checked Sep 21, 2026
22Strong evidenceEden Prairie, MN, United StatesHQ checked Sep 21, 20265,001-10,000109 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 21, 2026
23Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 21, 2026501-1,000106 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 21, 2026
24Strong evidenceMiami, FL, United StatesHQ checked Sep 21, 2026201-500102 contacts →

Strong evidence

“Kandji is now Iru- Kandji is the Apple endpoint security platform.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceKirkland, WA, United StatesHQ checked Sep 21, 202651-20090 contacts →

Partial evidence

“Adaptiva, the autonomous endpoint management company, delivers the fastest way to patch and manage endpoints at scale.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 278 enterprise endpoint security services based in the United States

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Enterprise endpoint security services based in the United States at a glance

As of Sep 21, 2026
48.0%Verified-email coverage
185.3Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · San Francisco
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
105
11-50
83
51-200
49
201-500
13
501-1,000
9
1,001-5,000
9
5,001-10,000
3
10001+
7

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 278 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 enterprise endpoint security services, 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 “enterprise endpoint security services”. 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 enterprise endpoint security services), 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 enterprise endpoint security services, 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, 24,741 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 21, 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 enterprise endpoint security services, 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 enterprise endpoint security services are there based in the United States?

RevenueBase identified 278 enterprise endpoint security services 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?

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

Which city has the most enterprise endpoint security services?

San Francisco leads with 12 headquartered companies, followed by New York (11) and Austin (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 24,741 verified decision-maker contacts tracked across these 278 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 21, 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.