Company lists · Data refreshed September 2026
Top 25 Network security companies based in the United States
RevenueBase identified 2,432 network security companies headquartered in the United States as of September 2026 and tracks 123,189 professional contacts across them, including 60,277 with verified work emails and 35,974 with mobile numbers. New York is the largest hub.
This list covers network 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest network security companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 18,431 | ||||
“Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14,289 | ||||
“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 11,169 | ||||
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10,118 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,447 | ||||
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3,056 | ||||
“Netskope (NASDAQ: NTSK), a leader in modern security and networking for the cloud and AI era, addresses the needs of both security and networking teams by providing optimized…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3,052 | ||||
“SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,813 | ||||
“Infoblox unites networking and security to deliver unmatched performance and protection.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2,222 | ||||
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,157 | ||||
“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,648 | ||||
“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,636 | ||||
“Forcepoint simplifies security for global businesses and governments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,252 | ||||
“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.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,232 | ||||
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,217 | ||||
“On Dec.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,059 | ||||
“WatchGuard® Technologies, Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 874 | ||||
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 696 | ||||
“Protect Your Endpoints, Identities, Logs, and Employees.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 683 | ||||
“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Vectra AIPartial evidence | 651 | |||
“Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 641 | ||||
“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 629 | ||||
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 628 | ||||
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 566 | ||||
“Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 523 | ||||
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 2,432 network security companies based in the United States
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Network security companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 network security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “network security companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among network 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 an evidence 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, 60,277 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 5, 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.
Network security companies by metro
- Network security companies in New York72
- Network security companies in Miami45
- Network security companies in Houston44
- Network security companies in Austin41
- Network security companies in Dallas40
- Network security companies in Chicago36
- Network security companies in Atlanta33
- Network security companies in San Francisco28
- Network security companies in Washington27
Frequently asked
How many network security companies are there based in the United States?
RevenueBase identified 2,432 network 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?
Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.
Which city has the most network security companies?
New York leads with 72 headquartered companies, followed by Miami (45) and Houston (44).
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 60,277 verified decision-maker contacts tracked across these 2,432 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 5, 2026.
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Network security companies by geography
- Network security companies based in the United Kingdom
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- Network security companies based in Canada
- Network security companies based in Australia
- Network security companies based in France
- Network security companies based in Germany
- Network security companies based in Spain
- Network security companies based in the Netherlands
- Network security companies based in Mexico
- Network security companies based in Italy
- Network security companies based in South Africa
- Network security companies based in Israel
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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.
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