Company lists · Data refreshed September 2026

Top 25 Security software and services providers based in the United States

RevenueBase identified 3,215 company matches for security software and services providers associated with the United States as of September 2026 and tracks 136,595 professional contacts across them, including 64,128 with verified work emails. New York is the largest hub.

This list covers company matches for security software and services providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
3,215Companies
136,595Contacts tracked
64,128Verified emails
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The 25 largest security software and services providers based in the United States

Ranked by team size
Top 25 of 3,215 company matches for security software and services providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSanta Clara, CA, United StatesHQ recorded Sep 29, 202610001+18,431 contacts →

Exact match

“Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchSunnyvale, CA, United StatesHQ recorded Sep 29, 202610001+14,289 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchSan Jose, CA, United StatesHQ recorded Sep 29, 202610001+11,169 contacts →

Exact match

“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchRemote, United StatesHQ recorded Sep 29, 20265,001-10,00010,118 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Sep 29, 20261,001-5,0004,868 contacts →

Exact match

“We’re creating what’s next in online protection.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchEden Prairie, MN, United StatesHQ recorded Sep 29, 20261,001-5,0003,145 contacts →

Exact match

“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchFoster City, CA, United StatesHQ recorded Sep 29, 20261,001-5,0003,058 contacts →

Exact match

“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchMountain View, CA, United StatesHQ recorded Sep 29, 20261,001-5,0003,052 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchMinneapolis, MN, United StatesHQ recorded Sep 29, 20261,001-5,0002,907 contacts →

Exact match

“Entrust fights fraud and cyber threats with identity-centric security that protects people, devices, and data.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 29, 20261,001-5,0002,822 contacts →

Exact match

“Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchSouth Jordan, UT, United StatesHQ recorded Sep 29, 20261,001-5,0002,691 contacts →

Exact match

“Ivanti is a global enterprise IT and security software company that provides the trusted data authority for AI-driven, autonomous endpoint management.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchCampbell, CA, United StatesHQ recorded Sep 29, 20261,001-5,0002,157 contacts →

Exact match

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Sep 29, 20261,001-5,0001,252 contacts →

Exact match

“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202610001+1,217 contacts →

Exact match

“On Dec.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 20261,001-5,0001,059 contacts →

Exact match

“WatchGuard® Technologies, Inc.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchKansas City, MO, United StatesHQ recorded Sep 29, 20261,001-5,000844 contacts →

Exact match

“Today’s threatscape is relentless.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLansing, MI, United StatesHQ recorded Sep 29, 2026n/a785 contacts →

Exact match

“ASK is now Convergence Networks!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchNorwalk, CT, United StatesHQ recorded Sep 29, 20261,001-5,000731 contacts →

Exact match

“As a leading global provider of security and cloud-based software solutions purpose-built for MSPs, Datto, a Kaseya company, believes there is no limit to what SMBs can achieve…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchColumbia, MD, United StatesHQ recorded Sep 29, 2026501-1,000696 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchMilpitas, CA, United StatesHQ recorded Sep 29, 20261,001-5,000676 contacts →

Exact match

“We are now officially Trellix!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchPlano, TX, United StatesHQ recorded Sep 29, 2026501-1,000641 contacts →

Exact match

“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchSan Jose, CA, United StatesHQ recorded Sep 29, 2026501-1,000640 contacts →

Exact match

“Skyhigh Security protects organizations with cloud-native security solutions that are both data-aware and simple to use.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchAshburn, VA, United StatesHQ recorded Sep 29, 2026501-1,000629 contacts →

Exact match

“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchChicago, IL, United StatesHQ recorded Sep 29, 20261,001-5,000628 contacts →

Exact match

“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchSanta Clara, CA, United StatesHQ recorded Sep 29, 2026501-1,000604 contacts →

Exact match

“Malwarebytes is reimagining security to safeguard devices, data, and people, no matter their location, lifestyle or means.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 3,215 security software and services providers based in the United States

See the full list, filter by size, metro and specialty, and access 64,128 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security software and services providers based in the United States at a glance

As of Sep 29, 2026
46.9%Verified-email coverage
42.5Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,599
11-50
1,099
51-200
359
201-500
76
501-1,000
28
1,001-5,000
28
5,001-10,000
5
10001+
13

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 3,215 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “security software and services providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 64,128 professional contacts with verified work emails across the full matched dataset. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security software and services providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security software and services providers are there based in the United States?

RevenueBase identified 3,215 company matches for security software and services providers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Palo Alto Networks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most security software and services providers?

New York leads with 95 company records, followed by Austin (62) and Houston (57).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 64,128 professional contacts with verified work emails tracked across these 3,215 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 SmartSearch, 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.