Company lists · Data verified August 2026

Top 19 Application security companies based in San Francisco, United States

Name: Application 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 34 companies tracked

There are 34 application security companies headquartered in San Francisco, United States (RevenueBase, August 2026). RevenueBase tracks 1,049 professional contacts across them, including 300 with verified work emails and 275 with mobile numbers. San Francisco is the largest hub.

This list covers application 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.

34Companies

1,049Contacts tracked

300Verified emails

275Mobile numbers

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The 19 largest application security companies based in San Francisco, United States

Ranked by team size

Top 19 of 34 application 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	TAC Security	San Francisco, CA	51-200	207	46
2	Socket	San Francisco	51-200	79	54
3	Traceable By Harness	San Francisco, CA	201-500	77	52
4	Apisec	San Francisco, CA	11-50	52	16
5	Pradeo	San Francisco, CA	51-200	47	33
6	Projectdiscovery	San Francisco, CA	11-50	45	26
7	Escape	San Francisco, CA	11-50	43	23
8	Seworks	San Francisco, CA	11-50	26	1
9	Riskiq	San Francisco, CA	201-500	23	4
10	Codeant AI	San Francisco, CA	11-50	22	13
11	Coverity	San Francisco, CA	201-500	15	1
12	Vidoc Security LAB	San Francisco	11-50	12	6
13	Runsybil	San Francisco, CA	11-50	12	6
14	Hubbase	San Francisco, CA	11-50	7	5
15	Zeropath	San Francisco, CA	11-50	6	5
16	Xcape, INC	San Francisco, CA	11-50	6	3
17	Probely A Snyk Business	San Francisco, CA	11-50	4	3
18	Raspire YC P26	San Francisco	11-50	3	2
19	Securityinfinity	San Francisco, CA	1-10	1	1

Showing 19 of 34 application security companies based in San Francisco, United States

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

As of Aug 28, 2026

11-50Median size (employees)

San FranciscoLargest hub · 34 HQs

275Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Application security companies by metro in the United States

Metro	Companies
Application security companies in San Francisco	34
Application security companies in New York	29
Application security companies in Austin	17
Application security companies in Boston	12
Application security companies in Wilmington	9
Application security companies in Denver	9
Application security companies in Chicago	9

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 “application 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; 1 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 application security companies are there based in San Francisco, United States?

There are 34 application security companies headquartered in San Francisco, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most application security companies?

San Francisco leads with 34 headquartered companies, followed by New York (29) and Austin (17).

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 300 verified decision-maker contacts tracked across these 34 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.