Company lists · Data verified August 2026

Top 17 AI security software companies based in San Jose, United States

Name: AI 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 Verified Aug 28, 2026 28 companies tracked

There are 28 AI security software companies headquartered in San Jose, United States (RevenueBase, August 2026). RevenueBase tracks 15,543 professional contacts across them, including 3,258 with verified work emails and 2,608 with mobile numbers. New York is the largest hub.

This list covers AI security software companies headquartered in San Jose, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

28Companies

15,543Contacts tracked

3,258Verified emails

2,608Mobile numbers

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The 17 largest AI security software companies based in San Jose, United States

Ranked by team size

Top 17 of 28 AI security software companies based in San Jose, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Symantec	San Jose, CA	10001+	11,179	876
2	Ivanti	San Jose	1,001-5,000	2,666	1,783
3	Netenrich	San Jose, CA	501-1,000	885	261
4	Concentric AI	San Jose, CA	201-500	202	122
5	Sq1 Security	San Jose, CA	201-500	149	10
6	Safetica	San Jose, CA	51-200	138	92
7	Exaforce	San Jose, CA	51-200	80	55
8	PRE Security	San Jose, CA	11-50	40	21
9	Netmonastery INC	San Jose, CA	11-50	35	4
10	OPSIN	San Jose, CA	11-50	15	9
11	Hydrox AI	San Jose, CA	1-10	15	3
12	Quantum Ventura INC	San Jose	1-10	15	3
13	Cygne Noir Cyber	San Jose, CA	11-50	11	4
14	Nextray AI Detection & Response INC	San Jose, CA	51-200	10	8
15	Aptori	San Jose, CA	11-50	8	2
16	Securex.ai, INC	San Jose, CA	1-10	6	4
17	Trustlook AI Cybersecurity	San Jose, CA	11-50	6	1

Showing 17 of 28 AI security software companies based in San Jose, United States

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AI security software companies based in San Jose, United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 65 HQs

2,608Contacts with mobile numbers

21Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

AI security software companies by metro in the United States

Metro	Companies
AI security software companies in New York	65
AI security software companies in San Francisco	56
AI security software companies in San Jose	28
AI security software companies in Austin	27
AI security software companies in Boston	25
AI security software companies in Miami	24
AI security software companies in San Diego	15

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “AI security software companies”, with match quality audited by blind human judging, and headquartered in San Jose, United States.
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: Contact records re-verify on a rolling cadence; 21 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many AI security software companies are there based in San Jose, United States?

There are 28 AI security software companies headquartered in San Jose, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Symantec, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most AI security software companies?

New York leads with 65 headquartered companies, followed by San Francisco (56) and San Jose (28).

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 3,258 verified decision-maker contacts tracked across these 28 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.