Company lists · Data verified August 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 Verified Aug 28, 2026 379 companies tracked

There are 379 endpoint security companies headquartered in the United States (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Symantec	San Jose, CA	10001+	11,179	876
2	Crowdstrike	Remote	5,001-10,000	10,059	7,290
3	Sentinelone	Mountain View, CA	1,001-5,000	3,046	1,926
4	Bitdefender	Fort Lauderdale, FL	1,001-5,000	2,141	1,230
5	Barracuda	Alpharetta, GA	1,001-5,000	2,108	1,463
6	Absolute Security	Seattle, WA	501-1,000	789	449
7	Huntress	Columbia, MD	501-1,000	694	135
8	SSH Communications Security	New York, NY	51-200	590	105
9	Guidance Software	Las Vegas, NV	501-1,000	496	40
10	Lookout	Boston, MA	201-500	491	197
11	K7 Computing	Cerritos, CA	201-500	358	57
12	Sonitrol	Indianapolis	10001+	302	2
13	Hirsch USA	Santa Ana, CA	201-500	234	11
14	Eset North America	San Diego, CA	51-200	180	123
15	Xcitium	Remote	501-1,000	172	74
16	Defendedge	Elmhurst, IL	51-200	166	66
17	ESOFT	Broomfield, CO	51-200	140	2
18	TODYL	Denver, CO	51-200	134	91
19	Point Wild	Boston, MA	51-200	131	68
20	Authentic8	Washington, DC	51-200	124	72
21	Cylance INC	Eden Prairie, MN	5,001-10,000	110	23
22	Microsoft Intune	Redmond, WA	10001+	109	3
23	Centripetal	Portsmouth, NH	51-200	105	27
24	Threatdown	Santa Clara, CA	501-1,000	104	31
25	Kandji	Miami, FL	201-500	98	31

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 Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 20 HQs

9,730Contacts with mobile numbers

0Emails re-verified in last 30 days

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+

Endpoint security companies by metro

Metro	Companies
Endpoint security companies in New York	20
Endpoint security companies in San Francisco	14
Endpoint security companies in Austin	10
Endpoint security companies in Miami	8
Endpoint security companies in Palo Alto	8
Endpoint security companies in Boston	7
Endpoint security companies in San Jose	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “endpoint security companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many endpoint security companies are there based in the United States?

There are 379 endpoint security companies headquartered in the United States as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.