Company lists · Data refreshed October 2026

Top 20 Cybersecurity services firms based in San Jose, United States

Name: Cybersecurity services firms 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 1, 2026 33 companies tracked

RevenueBase identified 33 company matches for cybersecurity services firms associated with San Jose, United States as of October 2026 and tracks 12,299 professional contacts across them, including 1,573 with verified work emails. Across the United States, New York is the largest hub for this category (276 companies); San Jose has 33.

This list covers company matches for cybersecurity services firms 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 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

33Companies

12,299Contacts tracked

1,573Verified emails

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The 20 largest cybersecurity services firms based in San Jose, United States

Ranked by team size

Top 20 of 33 company matches for cybersecurity services firms based in San Jose, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	10001+	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 · Oct 1, 2026 · View company records in RevenueBase
2	Vectra AI	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	501-1,000	651 contacts →
	Exact match “Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Catalyst Business Partners	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	51-200	172 contacts →
	Exact match “Catalyst is a digital consulting firm headquartered in Silicon Valley, with operations in over 15 countries across EMEA.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Armature Systems	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	44 contacts →
	Exact match “Building an effective cyber security program from scratch is time consuming and expensive.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Secqureone	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	51-200	43 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 1, 2026 · View company records in RevenueBase
6	Truadvantage	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	34 contacts →
	Exact match “TruAdvantage is a Bay Area-based, award-winning IT firm that specializes in managed IT, managed Cybersecurity, managed Compliance and Cloud solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Firewalla INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	23 contacts →
	Exact match “Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Reblaze Part Of Link11	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	51-200	19 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 1, 2026 · View company records in RevenueBase
9	Bravo Consulting	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	18 contacts →
	Exact match “At Bravo Consulting, we believe that cybersecurity doesn’t have to be complicated.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Apogee Global RMS	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	17 contacts →
	Exact match “Apogee Global RMS is a U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Accend Networks	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	14 contacts →
	Exact match “WHO WE ARE An IT Network Consulting company specializing in network security, network design, implementation and support for Data, Wireless, and Voice networks.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	ITQUE	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “ITque is a leading Managed IT Security & Services Provider specializing in network and data security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Cygne Noir Cyber	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “At Cygne Noir Cyber, we believe that security and intelligence go hand in hand.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Cloud 1 Solutions, INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	51-200	10 contacts →
	Exact match “Cloud 1 Solutions provides Managed IT and Security Services for your organization.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Esudo Technology Solutions	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Businesses of every size, in every industry, are increasingly dependent on technology.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Securenomics	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	5 contacts →
	Exact match “Securenomics is a distributor of Netskope, Cisco Security, Cato Networks and Cyberhaven Security services, empowering channel partners to offer customers the security they need to…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Guarded Cyber	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 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 1, 2026 · View company records in RevenueBase
18	Infoguard Cyber Security	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “WHAT WE DO We Provide a Comprehensive CYBER SECURITY SOLUTIONS AND CONSULTING SERVICES that Protect organizations information assets against a range of cyber threats & Mitigate…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Cyber Gardener	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “We are a cybersecurity consulting company focused on CMMC, CYBER INSURANCE, and HIPAA assessment company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Doyengc-Apon	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “Digital Transformation is all about making Company competent enough so that it can en-cash all the digital Moments that come while doing Business.” Recorded in the RevenueBase company graph · Oct 1, 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 “cybersecurity services firms”. 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 33 cybersecurity services firms based in San Jose, United States

See the full list, filter by size, metro and specialty, and access 1,573 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity services firms based in San Jose, United States at a glance

As of Oct 1, 2026

12.8%Verified-email coverage

372.7Average contacts per company

11-50Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 33 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 “cybersecurity services 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 1,573 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 services 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 services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity services firms are there based in San Jose, United States?

RevenueBase identified 33 company matches for cybersecurity services firms 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 cybersecurity services firms?

New York leads the United States with 276 company records, followed by Washington (154) and Austin (153). San Jose has 33.

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 1,573 professional contacts with verified work emails tracked across these 33 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.