Company lists · Data verified August 2026

Top 25 AI security companies based in San Francisco, United States

Name: AI security companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 59 companies tracked

There are 59 AI security companies headquartered in San Francisco, United States (RevenueBase, August 2026). RevenueBase tracks 3,232 professional contacts across them, including 1,527 with verified work emails and 893 with mobile numbers. New York is the largest hub.

This list covers AI security companies headquartered in San Francisco, 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.

59Companies

3,232Contacts tracked

1,527Verified emails

893Mobile numbers

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The 25 largest AI security companies based in San Francisco, United States

Ranked by team size

Top 25 of 59 AI security companies based in San Francisco, 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	CYERA	San Francisco, CA	1,001-5,000	1,121	642
2	Cohere	San Francisco, CA	201-500	940	430
3	Vehere	San Francisco, CA	201-500	210	138
4	Cobalt AI	San Francisco, CA	51-200	129	39
5	Panther	San Francisco, CA	51-200	128	62
6	Hakimo	San Francisco	51-200	91	58
7	Harmonic Security	San Francisco, CA	51-200	54	35
8	akto.io	San Francisco, CA	11-50	32	16
9	Symmetry Systems	San Francisco, CA	11-50	27	17
10	Strongestlayer	San Francisco, CA	51-200	27	2
11	Virtue AI	San Francisco, CA	11-50	25	9
12	AVS	San Francisco, CA	11-50	23	9
13	Umbo Computer Vision	San Francisco, CA	11-50	23	1
14	Nullify	San Francisco	51-200	19	3
15	Spacture AI	San Francisco	11-50	17	5
16	Beakon	San Francisco	11-50	16	10
17	Operant AI	San Francisco, CA	11-50	16	10
18	ZAUN	San Francisco, CA	11-50	10	6
19	Nfactor Technologies INC	San Francisco, CA	11-50	7	5
20	Petra Security	San Francisco, CA	11-50	6	4
21	Specular	San Francisco	1-10	6	4
22	Dace IT With Sense Traffic Pulse	San Francisco, CA	1-10	5	1
23	XY Cyber	San Francisco	1-10	4	1
24	Tekleap	San Francisco, CA	11-50	3	2
25	Codeintegrity	San Francisco, CA	1-10	2	2

Showing 25 of 59 AI security companies based in San Francisco, United States

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

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 73 HQs

893Contacts with mobile numbers

13Emails 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

AI security companies by metro in the United States

Metro	Companies
AI security companies in New York	73
AI security companies in San Francisco	59
AI security companies in Austin	35
AI security companies in San Jose	34
AI security companies in Miami	30
AI security companies in Dallas	23
AI security companies in Boston	20

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 companies”, with match quality audited by blind human judging, and headquartered in San Francisco, 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; 13 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 companies are there based in San Francisco, United States?

There are 59 AI security companies headquartered in San Francisco, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

CYERA, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most AI security companies?

New York leads with 73 headquartered companies, followed by San Francisco (59) and Austin (35).

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 1,527 verified decision-maker contacts tracked across these 59 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.