Company lists · Data refreshed September 2026

Top 25 Red teaming tool vendors based in the United States

RevenueBase identified 196 company matches for red teaming tool vendors associated with the United States as of September 2026 and tracks 4,198 professional contacts across them, including 2,008 with verified work emails. San Francisco is the largest hub.

This list covers company matches for red teaming tool vendors 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 September 21, 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 21, 2026 How this list was built
196Companies
4,198Contacts tracked
2,008Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest red teaming tool vendors based in the United States

Ranked by team size
Top 25 of 196 company matches for red teaming tool vendors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchBurlington, MA, United StatesHQ recorded Sep 21, 2026201-500486 contacts →

Exact match

“Pentera provides AI-powered Automated Security Validation for enterprise security teams.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchTempe, AZ, United StatesHQ recorded Sep 21, 2026201-500344 contacts →

Exact match

“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 2026201-500301 contacts →

Exact match

“Finding exposures was never the hard part.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchArlington, VA, United StatesHQ recorded Sep 21, 2026201-500265 contacts →

Exact match

“For nearly two decades, Millennium Corporation has been operating on the leading edge of cybersecurity.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchRedwood City, CA, United StatesHQ recorded Sep 21, 2026201-500237 contacts →

Exact match

“Synack is the leader in human-led and agentic AI-powered Penetration Testing as a Service (PTaaS), transforming offensive security to help organizations proactively reduce risk…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLos Altos, CA, United StatesHQ recorded Sep 21, 202651-200149 contacts →

Exact match

“AttackIQ® is trusted by top organizations worldwide to validate security controls in real time.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Sep 21, 202651-200145 contacts →

Exact match

“Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchSpearfish, SD, United StatesHQ recorded Sep 21, 202651-200131 contacts →

Exact match

“We specialize in penetration testing, red teaming, threat hunting, Active SOC services, and educational webinars, workshops, and training.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchSeattle, WA, United StatesHQ recorded Sep 21, 202651-200107 contacts →

Exact match

“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchSan Jose, CA, United StatesHQ recorded Sep 21, 202611-50103 contacts →

Exact match

“FireCompass is an Agentic AI platform for autonomous penetration testing and red teaming across Web, API, and infrastructure.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchCupertino, CA, United StatesHQ recorded Sep 21, 202651-20079 contacts →

Exact match

“Threatcop, a leading security awareness company, is a pioneer in People Security Management that offers leading AI-powered technology focused on social engineering and email-based…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchJacksonville, FL, United StatesHQ recorded Sep 21, 202651-20073 contacts →

Exact match

“OnDefend specializes in advanced cybersecurity testing that delivers ongoing security validation across the most complex technology environments.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchMelbourne, FL, United StatesHQ recorded Sep 21, 202651-20051 contacts →

Exact match

“At Cromulence LLC we advance our nation’s cybersecurity capabilities through expert application of cutting edge research and equip the next generation of security experts with…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchMilpitas, CA, United StatesHQ recorded Sep 21, 202651-20047 contacts →

Exact match

“Ridge Security, a leader in AI-powered offensive security, is dedicated to bringing to market innovative cybersecurity products that empower enterprise CISOs and security teams to…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchNashville, TN, United StatesHQ recorded Sep 21, 202611-5038 contacts →

Exact match

“ENSURE YOUR ORGANIZATION IS READY FOR ANY ATTACK, ANY TIME Most security leaders are asked the same question: Are we prepared?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchSunnyvale, MA, United StatesHQ recorded Sep 21, 20261,001-5,00031 contacts →

Exact match

“HCL AppScan is your ultimate solution for fortifying digital defenses and safeguarding software applications against evolving cyber threats.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSalem, NH, United StatesHQ recorded Sep 21, 202611-5030 contacts →

Exact match

“At Beyond, we forge trust into every line of code, driving the success of missions that matter most.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Red Sentry delivers expert-led penetration testing to help businesses identify and fix security vulnerabilities before attackers can exploit them.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
22Exact matchAustin, TX, United StatesHQ recorded Sep 21, 202651-20026 contacts →

Exact match

“Acunetix was founded to combat the alarming rise in web attacks.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“We are the world's leading provider of decision support red teaming for business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchGuys Mills, PA, United StatesHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“White Knight Labs is an elite offensive cybersecurity consultancy trusted by organizations that take security seriously.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“vPenTest from Vonahi Security, a Kaseya company, is the leading SaaS platform that's revolutionizing network penetration testing through automation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 196 red teaming tool vendors based in the United States

See the full list, filter by size, metro and specialty, and access 2,008 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Red teaming tool vendors based in the United States at a glance

As of Sep 21, 2026
47.8%Verified-email coverage
21.4Average contacts per company
1-10Median size (employees)
7.7%Largest-city concentration · San Francisco
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
103
11-50
65
51-200
17
201-500
7
1,001-5,000
3
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 196 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 “red teaming tool vendors” 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 2,008 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 21, 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 “red teaming tool vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many red teaming tool vendors are there based in the United States?

RevenueBase identified 196 company matches for red teaming tool vendors associated with the 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?

Pentera tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most red teaming tool vendors?

San Francisco leads with 15 company records, followed by New York (14) and Atlanta (7).

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 2,008 professional contacts with verified work emails tracked across these 196 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 196 red teaming tool vendors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.