Company lists · Data refreshed September 2026

Top 24 App security companies based in San Francisco, United States

RevenueBase identified 50 company matches for app security companies associated with San Francisco, United States as of September 2026 and tracks 5,594 professional contacts across them, including 975 with verified work emails and 795 with mobile numbers. Across the United States, San Francisco is the largest hub for this category.

This list covers company matches for app security companies associated with San Francisco, 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 September 24, 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 Sep 24, 2026 How this list was built
50Companies
5,594Contacts tracked
975Verified emails
795Mobile numbers
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The 24 largest app security companies based in San Francisco, United States

Ranked by team size
Top 24 of 50 company matches for app security companies based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026n/a3,649 contacts →

Exact match

“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026201-500364 contacts →

Exact match

“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026201-500350 contacts →

Exact match

“Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202651-200208 contacts →

Exact match

“TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202651-200167 contacts →

Exact match

“Fluid Attacks helps companies prevent, detect, manage and remediate vulnerabilities across their application attack surface.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026201-50081 contacts →

Exact match

“Traceable is the industry’s leading API Security company that helps organizations achieve API visibility and attack protection in a cloud-first, API-driven world.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, United StatesHQ recorded Sep 24, 202651-20080 contacts →

Exact match

“Socket is a cybersecurity platform that protects companies from software supply chain attacks.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5051 contacts →

Exact match

“The APIsec security testing platform discovers business logic exploits.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5047 contacts →

Exact match

“Software ships daily.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5043 contacts →

Exact match

“Escape automates the full offensive security lifecycle, multiplying the impact of every security engineer tenfold.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5027 contacts →

Exact match

“We specialize in Web Application and API penetration Testing, Cyber Threat Intelligence, and Detecting Account Takeovers (ATOs) from attackers.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5023 contacts →

Exact match

“Doyensec is an independent security research and development company focused on vulnerability discovery and remediation.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5023 contacts →

Exact match

“CodeAnt AI is the agentic code security platform, combining defense and offense in a single self-learning engine.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026201-50022 contacts →

Exact match

“RiskIQ is the leader in attack surface management, providing the most comprehensive discovery, intelligence, and mitigation of threats associated with an organization’s digital…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 2026201-50015 contacts →

Exact match

“Coverity is now part of Synopsys.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-5012 contacts →

Exact match

“RunSybil is an AI-native offensive security platform that autonomously discovers and exploits real-world vulnerabilities across modern applications.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, United StatesHQ recorded Sep 24, 202611-5011 contacts →

Exact match

“Vidoc Security Lab helps companies secure code written by both humans and AI.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-508 contacts →

Exact match

“Web pentesting with Defensive Security and Offensive Security.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-506 contacts →

Exact match

“Founded by security engineers from Tesla and Google, ZeroPath empowers developers to ship secure code faster.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-506 contacts →

Exact match

“Humanize is an innovative and data-conscious company that transforms cybersecurity weaknesses to human readable quantified risks for C-Suite.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, United StatesHQ recorded Sep 24, 20261-105 contacts →

Exact match

“We make it easy to catch critical vulnerabilities in your web app or API so you don't wake up to a bad breach.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 20261-104 contacts →

Exact match

“Gecko finds and fixes security vulnerabilities in your codebase, just like having a security engineer making your code secure.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 202611-502 contacts →

Exact match

“Lucent Sky designs tools to accelerate and scale application security processes.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24Exact matchSan Francisco, CA, United StatesHQ recorded Sep 24, 20261-101 contacts →

Exact match

“Secure your website in 10 minutes.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

Showing 24 of 50 app security companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 975 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 24, 2026
17.4%Verified-email coverage
14.2%Mobile-number coverage
111.9Average contacts per company
11-50Median size (employees)
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
22
51-200
9
201-500
7

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

Company record updated

Median 68.0d

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 Francisco, United States whose business descriptions match “app security companies” 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 975 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 September 24, 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.

App security companies 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 “app security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many app security companies are there based in San Francisco, United States?

RevenueBase identified 50 company matches for app security companies associated with San Francisco, United States as of September 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?

Bugcrowd 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 app security companies?

San Francisco leads the United States with 45 company records, followed by New York (30) and Austin (16).

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 975 professional contacts with verified work emails tracked across these 50 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 September 24, 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.