Company lists · Data refreshed October 2026

Top 20 Cybersecurity firms based in Santa Clara, United States

RevenueBase identified 28 company matches for cybersecurity firms associated with Santa Clara, United States as of October 2026 and tracks 24,026 professional contacts across them, including 14,081 with verified work emails. Across the United States, New York is the largest hub for this category (358 companies); Santa Clara has 28.

This list covers company matches for cybersecurity firms associated with Santa Clara, 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 October 1, 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 Oct 1, 2026 How this list was built
28Companies
24,026Contacts tracked
14,081Verified emails
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The 20 largest cybersecurity firms based in Santa Clara, United States

Ranked by team size
Top 20 of 28 company matches for cybersecurity firms based in Santa Clara, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 20261,001-5,0002,813 contacts →

Exact match

“Infoblox unites networking and security to deliver unmatched performance and protection.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 2026201-500497 contacts →

Exact match

“Seclore is the Data Security Intelligence company for the era of enterprise AI, helping organizations turn data and AI risk into readiness.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 20261,001-5,000285 contacts →

Exact match

“NSFOCUS is an iconic internet and application security company with over 20 years of proven industry experience.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 20261,001-5,000230 contacts →

Exact match

“Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 2026501-1,000159 contacts →

Exact match

“Hitachi Systems Trusted Cyber Management Inc.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 2026501-1,000106 contacts →

Exact match

“ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20094 contacts →

Exact match

“Bolster is an AI-powered cybersecurity company helping the world’s leading brands protect their customers from phishing, fraud, and digital impersonation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20092 contacts →

Exact match

“Acalvio, the leader in cyber deception technology, helps enterprises actively defend against advanced security threats.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20084 contacts →

Exact match

“ORDR is the leader in AI-powered device security and asset protection, trusted by leading organizations in healthcare, transportation, manufacturing, and financial services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 20261,001-5,00030 contacts →

Exact match

“Arista’s suite of security solutions helps customers accelerate their journey toward zero-trust maturity.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20028 contacts →

Exact match

“Valyrian System, Inc.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202611-5027 contacts →

Exact match

“CybeReady is the world’s only automated platform for cyber readiness training, delivering quick, real-world simulations and feedback to ensure your team is always prepared to…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20016 contacts →

Exact match

“Kenna is now Cisco Vulnerability Management.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-20015 contacts →

Exact match

“Cavirin protects your digital assets across the enterprise hybrid cloud by delivering CyberPosture Intelligence.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 20261-1011 contacts →

Exact match

“Operational and non-operational systems in an enterprise often grapple with cybersecurity challenges, especially during vulnerability assessments in out-of-bandwidth scenarios.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-2009 contacts →

Exact match

“Cyber Forza differentiates itself from other Cybersecurity providers by being the First and Only Cloud AI Unified Cyber Defense Platform.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 2026501-1,0004 contacts →

Exact match

“Allitcon is a new age technology company offering services and solutions to help better and secure your business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202611-502 contacts →

Exact match

“Continuity Focus’ team of IT and Security architects and engineers work collaboratively with our clients to find the best way to implement and/or manage products from carefully…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 20 of 28 cybersecurity firms based in Santa Clara, United States

See the full list, filter by size, metro and specialty, and access 14,081 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity firms based in Santa Clara, United States at a glance

As of Oct 1, 2026
58.6%Verified-email coverage
858.1Average contacts per company
51-200Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
2
11-50
3
51-200
10
201-500
1
501-1,000
4
1,001-5,000
5
5,001-10,000
2
10001+
1

Email recency for this list is measured across the whole United States list rather than for Santa Clara, so it is reported there. Company counts and contact totals on this page are exact for Santa Clara, over 28 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 Santa Clara, United States whose business descriptions match “cybersecurity firms” 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 14,081 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 October 1, 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.

Cybersecurity firms by metro in the United States

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 “cybersecurity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity firms are there based in Santa Clara, United States?

RevenueBase identified 28 company matches for cybersecurity firms associated with Santa Clara, United States as of October 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 in the United States has the most cybersecurity firms?

New York leads the United States with 358 company records, followed by Austin (182) and San Francisco (182). Santa Clara has 28.

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 14,081 professional contacts with verified work emails tracked across these 28 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 October 1, 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.