Company lists · Data refreshed October 2026

Top 20 Cyber and data security software companies based in San Jose, United States

Name: Cyber and data security software companies based in San Jose, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 19, 2026 38 companies tracked

RevenueBase identified 38 company matches for cyber and data security software companies associated with San Jose, United States as of October 2026 and tracks 13,287 professional contacts across them, including 1,660 with verified work emails. Across the United States, New York is the largest hub for this category (150 companies); San Jose has 38.

This list covers company matches for cyber and data security software companies associated with San Jose, 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 19, 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 19, 2026 How this list was built

38Companies

13,287Contacts tracked

1,660Verified emails

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The 20 largest cyber and data security software companies based in San Jose, United States

Ranked by team size

Top 20 of 38 company matches for cyber and data security software companies based in San Jose, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	10001+	11,671 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 · Oct 19, 2026 · View company records in RevenueBase
2	Vectra AI	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	501-1,000	655 contacts →
	Exact match “Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3	Concentric AI	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	201-500	243 contacts →
	Exact match “Concentric AI is intelligent data security made easy.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4	Safetica	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	51-200	146 contacts →
	Exact match “Safetica delivers Intelligent Data Security for modern organizations that need to protect sensitive data, reduce insider risk, and ensure regulatory compliance-without disrupting…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5	Axiado Corporation	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	51-200	139 contacts →
	Exact match “Axiado is a leading hardware-anchored platform security solutions company deploying a novel, AI-driven approach to platform security against ransomware, supply chain…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6	Lightbeam	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	51-200	71 contacts →
	Exact match “As sensitive data volumes and global regulations increase, organizations face greater risks from breaches and compliance violations.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7	Secqureone	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	51-200	46 contacts →
	Exact match “SecqureOne (SQ1) is a Silicon Valley based end-to-end cyber security and compliance solution provider serving businesses globally over the last 17 years.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8	PRE Security	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	37 contacts →
	Exact match “PRE Security is leading the way to a new era of proactive, predictive cybersecurity with our AI Native Predictive SecOps platform.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9	Vormetric, INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	201-500	34 contacts →
	Exact match “Vormetric Data Security was acquired by Thales in March 2016.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10	Firewalla INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	22 contacts →
	Exact match “Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11	Reblaze Part Of Link11	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	51-200	17 contacts →
	Exact match “Link11 and Reblaze have united to provide comprehensive, enterprise-grade cybersecurity solutions, making the Internet safer for businesses of all sizes.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12	Quantum Ventura INC	Exact match	San Jose, United StatesHQ recorded Oct 19, 2026	1-10	17 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13	Cygne Noir Cyber	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	9 contacts →
	Exact match “At Cygne Noir Cyber, we believe that security and intelligence go hand in hand.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14	Esudo Technology Solutions	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	1-10	9 contacts →
	Exact match “Businesses of every size, in every industry, are increasingly dependent on technology.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15	Trustlook AI Cybersecurity	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	7 contacts →
	Exact match “Trustlook is a global leader in next-generation cybersecurity products based on artificial intelligence.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16	Guarded Cyber	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	1-10	5 contacts →
	Exact match “Guarded Cyber is a Veteran Owned Managed Cybersecurity Services Provider that offers more than just technical expertise; we provide peace of mind.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17	Nubeva	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	3 contacts →
	Exact match “Nubeva develops and licenses B2B software for next-generation cybersecurity solutions with a focus on ransomware.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18	Portal Robotics	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	1-10	3 contacts →
	Exact match “VS Platform-the enterprise control plane for securely deploying and managing AI and applications across distributed edge environments.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19	Ghangorcloud	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	11-50	2 contacts →
	Exact match “GhangorCloud is a leading provider of Cyber Security solutions enabling defense against most sophisticated Cyber Attacks on Information and Data Repositories and Applications.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20	Boldcloud	Exact match	San Jose, CA, United StatesHQ recorded Oct 19, 2026	1-10	2 contacts →
	Exact match “BoldCloud is the cybersecurity advisor that businesses and consumers trust to help them stop cyberthreats and close security gaps.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cyber and data security software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 20 of 38 cyber and data security software companies based in San Jose, United States

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Cyber and data security software companies based in San Jose, United States at a glance

As of Oct 19, 2026

12.5%Verified-email coverage

349.7Average contacts per company

11-50Median size (employees)

Oct 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for San Jose, so it is reported there. Company counts and contact totals on this page are exact for San Jose, over 38 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 San Jose, United States whose business descriptions match “cyber and data security software companies” 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 1,660 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 19, 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.

Cyber and data security software companies 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 “cyber and data security software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cyber and data security software companies are there based in San Jose, United States?

RevenueBase identified 38 company matches for cyber and data security software companies associated with San Jose, 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?

Symantec 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 cyber and data security software companies?

New York leads the United States with 150 company records, followed by Austin (81) and San Francisco (81). San Jose has 38.

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 1,660 professional contacts with verified work emails tracked across these 38 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 19, 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.