Company lists · Data refreshed November 2026

Top 25 Breach and attack simulation companies worldwide

RevenueBase identified 220 company matches for breach and attack simulation companies worldwide as of November 2026 and tracks 4,039 professional contacts across them, including 2,116 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for breach and attack simulation companies worldwide, 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 November 6, 2026. Country and city lists for breach and attack simulation companies follow the table.

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 Nov 6, 2026 How this list was built
220Companies
4,039Contacts tracked
2,116Verified emails
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The 25 largest breach and attack simulation companies worldwide

Ranked by team size
Top 25 of 220 company matches for breach and attack simulation companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026501-1,000569 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBurlington, MA, United StatesHQ recorded Nov 6, 2026201-500485 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500334 contacts →

Exact match

“Finding exposures was never the hard part.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500271 contacts →

Exact match

“Designed for companies that want to manage their security posture against the evolving threat landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLos Altos, United StatesHQ recorded Nov 6, 202651-200160 contacts →

Exact match

“AttackIQ is the leader in threat-informed Continuous Threat Exposure Management (CTEM), helping organizations continuously validate defenses, break attack paths, and reduce threat…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPune, NY, IndiaHQ recorded Nov 6, 202651-200146 contacts →

Exact match

“SecureLayer7 is a CREST accredited advanced offensive security solutions provider, combining deep expertise with innovative products to protect modern digital enterprises.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202651-200137 contacts →

Exact match

“SafeBreach is on a mission to help organizations have certainty in their security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchClaymont, United StatesHQ recorded Nov 6, 202651-200135 contacts →

Exact match

“Astra Security is a leader in the penetration testing space, recognized by G2 in the Pentest category.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-20079 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“YOU DESERVE TO BE HACKED®.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, United StatesHQ recorded Nov 6, 202611-5060 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDoha, QatarHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“Cytomate is the first cybersecurity company in the MENA region that develops its own proprietary technology, proudly based in Doha, Qatar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchParis, FranceHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“Patrowl is an innovative product designed by cybersecurity experts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMilpitas, CA, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Ridge Security empowers CISOs to build cyber resilience through AI-native continuous offensive security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNashville, TN, United StatesHQ recorded Nov 6, 202611-5036 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Boxphish is a low touch cyber-SAT platform that arms organisations and their people, with the tools and knowledge needed to spot cyber attacks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“As Ameaças Cibernéticas afetam categoricamente todos os ramos de negócios no mundo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSydney, CA, AustraliaHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Cybersecurity is no longer a technology problem-it is a business-critical risk discipline.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“A bunch of technology enthusiasts came together to lay the foundation of a high tech business unit to work on futuristic technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAlpharetta, GA, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Siemba is an AI-powered cybersecurity platform that help teams continuously discover, validate, and remediate risks across the entire application ecosystem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“COGICEO is a company founded in 2012, specializing in IT security audits and penetration testing (pentest).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202611-5031 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKatonah, FL, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSydney, AustraliaHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 220 breach and attack simulation companies worldwide

See the full list, filter by size, metro and specialty, and access 2,116 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Breach and attack simulation companies worldwide at a glance

As of Nov 6, 2026
52.4%Verified-email coverage
18.4Average contacts per company
1-10Median size (employees)
5.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
121
11-50
70
51-200
22
201-500
5
501-1,000
1
1,001-5,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for breach and attack simulation companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “breach and attack simulation 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. 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 2,116 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 November 6, 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.

Breach and attack simulation companies by location

1 lists · largest first

Every Breach and attack simulation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “breach and attack simulation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many breach and attack simulation companies are there worldwide?

RevenueBase identified 220 company matches for breach and attack simulation companies worldwide as of November 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?

horizon3.ai tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most breach and attack simulation companies?

The United States leads with 54 companies. Every breach and attack simulation companies list by country and city is linked on this page.

Which city has the most breach and attack simulation companies?

London leads with 11 company records, followed by New York (6) and Atlanta (5).

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 2,116 professional contacts with verified work emails tracked across these 220 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 November 6, 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.