Company lists · Data refreshed October 2026

Top 25 Api security companies based in the United States

RevenueBase identified 81 company matches for api security companies associated with the United States as of October 2026 and tracks 7,309 professional contacts across them, including 2,219 with verified work emails. San Francisco is the largest hub.

This list covers company matches for api security companies associated with the 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 October 1, 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 Oct 1, 2026 How this list was built
81Companies
7,309Contacts tracked
2,219Verified emails
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The 25 largest api security companies based in the United States

Ranked by team size
Top 25 of 81 company matches for api security companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchAustin, TX, United StatesHQ recorded Oct 1, 202610001+1,217 contacts →

Exact match

“On Dec.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchAustin, TX, United StatesHQ recorded Oct 1, 2026201-500326 contacts →

Exact match

“Invicti is transforming the way web applications are secured.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchPalo Alto, CA, United StatesHQ recorded Oct 1, 202651-200234 contacts →

Exact match

“Protect your business-critical applications by mitigating threats and reducing risk with Obsidian, the first truly comprehensive security solution for SaaS.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Oct 1, 2026201-500232 contacts →

Exact match

“Noname Security is the only company taking a complete, proactive approach to API Security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Oct 1, 202651-200174 contacts →

Exact match

“AI is the operating system of the next decade of enterprise work, and most enterprises are running it on AWS with less oversight than they apply to the humans they're replacing.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchRedwood City, CA, United StatesHQ recorded Oct 1, 202651-200174 contacts →

Exact match

“SecPod is a leading cybersecurity technology company committed to preventing cyberattacks through proactive security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchRedwood City, CA, United StatesHQ recorded Oct 1, 2026201-500165 contacts →

Exact match

“Appdome protects mobile apps, APIs, and digital identities from fraud, bots, malware, and account takeover attacks.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 202651-200146 contacts →

Exact match

“Cequence protects the applications and data that power enterprises in the agentic era.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Oct 1, 202651-200105 contacts →

Exact match

“Oligo is the industry's leading runtime security platform that solves today's toughest challenge: stopping attacks in real time in the AI era.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSan Jose, CA, United StatesHQ recorded Oct 1, 2026201-50089 contacts →

Exact match

“NTT Application Security is driving the future of application security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
13Exact matchMilipitas, CA, United StatesHQ recorded Oct 1, 202651-20079 contacts →

Exact match

“Prophaze WAAP is a unified, AI-driven application security platform built to secure modern digital infrastructure with Kubernetes-native architecture, real-time runtime…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchLos Angeles, CA, United StatesHQ recorded Oct 1, 2026201-50055 contacts →

Exact match

“Cyber Security Cloud makes cloud security easy with intelligent web protection at the edge.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202651-20053 contacts →

Exact match

“Reflectiz is the AI-powered web exposure company trusted by hundreds of global organizations, including Cox Communications, DAZN, Village Roadshow, Leeds United, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 202611-5051 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchSeattle, WA, United StatesHQ recorded Oct 1, 2026201-50042 contacts →

Exact match

“Shape Security was acquired by F5 in January 2020, joining forces to transform how we defend the world’s applications against abuse and fraud, prevent reputational damage, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202611-5036 contacts →

Exact match

“AppSentinels Platform - an intelligent API and AI security solution designed to protect APIs, AI Agents, and MCP environments with real-time threat detection, deep visibility, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchDenver, CO, United StatesHQ recorded Oct 1, 202611-5035 contacts →

Exact match

“Transform application security with complete discovery of your API landscape, automated dev-native testing workflows, and actionable remediation guidance – at the pace of AI.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchSan Mateo, CA, United StatesHQ recorded Oct 1, 202651-20032 contacts →

Exact match

“PerimeterX is the leading provider of solutions that detect and stop the abuse of identity and account information on the web.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchNeedham, MA, United StatesHQ recorded Oct 1, 202651-20027 contacts →

Exact match

“Forum Systems is the global leader in API Security and Zero Trust with industry-certified, patented, and proven products deployed in the most rigorous and demanding on premise and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 202611-5017 contacts →

Exact match

“Impart Security’s integrated API security platform combines a complete understanding of APIs with next-generation runtime protection, giving security teams complete control over…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Oct 1, 202651-20017 contacts →

Exact match

“Our mission is to offer the most comprehensive solutions for application security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202611-5015 contacts →

Exact match

“ThreatX provides visionary API and application security with observability, vulnerability prevention, and threat protection.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 81 api security companies based in the United States

See the full list, filter by size, metro and specialty, and access 2,219 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api security companies based in the United States at a glance

As of Oct 1, 2026
30.4%Verified-email coverage
90.2Average contacts per company
11-50Median size (employees)
16.0%Largest-city concentration · San Francisco
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
20
51-200
19
201-500
8
1,001-5,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 81 companies.

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 the United States whose business descriptions match “api 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 2,219 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 October 1, 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.

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

How many api security companies are there based in the United States?

RevenueBase identified 81 company matches for api security companies associated with the United States as of October 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 has the most api security companies?

San Francisco leads with 13 company records, followed by Boston (6) and New York (4).

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 2,219 professional contacts with verified work emails tracked across these 81 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 October 1, 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.