Company lists · Data verified August 2026

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

Name: AI security software 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 56 companies tracked

There are 56 AI security software companies headquartered in San Francisco, United States (RevenueBase, August 2026). RevenueBase tracks 6,140 professional contacts across them, including 1,644 with verified work emails and 1,037 with mobile numbers. New York is the largest hub.

This list covers AI security software 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.

56Companies

6,140Contacts tracked

1,644Verified emails

1,037Mobile numbers

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

Ranked by team size

Top 25 of 56 AI security software 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	Bugcrowd	San Francisco, CA	n/a	3,566	238
2	CYERA	San Francisco, CA	1,001-5,000	1,121	642
3	Sysdig	San Francisco, CA	501-1,000	653	407
4	Vehere	San Francisco, CA	201-500	210	138
5	Panther	San Francisco, CA	51-200	128	62
6	Harmonic Security	San Francisco, CA	51-200	54	35
7	Pradeo	San Francisco, CA	51-200	47	33
8	Symmetry Systems	San Francisco, CA	11-50	27	17
9	Strongestlayer	San Francisco, CA	51-200	27	2
10	Virtue AI	San Francisco, CA	11-50	25	9
11	Nullify	San Francisco	51-200	19	3
12	Operant AI	San Francisco, CA	11-50	16	10
13	Ensilo	San Francisco, CA	51-200	12	3
14	ZAUN	San Francisco, CA	11-50	10	6
15	Nfactor Technologies INC	San Francisco, CA	11-50	7	5
16	Petra Security	San Francisco, CA	11-50	6	4
17	Specular	San Francisco	1-10	6	4
18	Xcape, INC	San Francisco, CA	11-50	6	3
19	Harmony Intelligence	San Francisco	1-10	5	5
20	Rapticore	San Francisco, CA	11-50	5	2
21	SOC Jedi.ai	San Francisco, CA	1-10	4	2
22	XY Cyber	San Francisco	1-10	4	1
23	Threatoptix	San Francisco, CA	11-50	3	3
24	Tekleap	San Francisco, CA	11-50	3	2
25	Codeintegrity	San Francisco, CA	1-10	2	2

Showing 25 of 56 AI security software companies based in San Francisco, United States

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

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 65 HQs

1,037Contacts with mobile numbers

16Emails 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 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 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; 16 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 Francisco, United States?

There are 56 AI security software companies headquartered in San Francisco, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Bugcrowd, headquartered in San Francisco, 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 1,644 verified decision-maker contacts tracked across these 56 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.