Company lists · Data refreshed November 2026
Top 24 Breach and attack simulation companies based in the United States
RevenueBase identified 54 company matches for breach and attack simulation companies associated with the United States as of November 2026 and tracks 2,656 professional contacts across them, including 1,632 with verified work emails. New York is the largest hub.
This list covers company matches for breach and attack simulation 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 November 6, 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.
The 24 largest breach and attack simulation companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 569 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 | |||||
| 2 | 485 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 | |||||
| 3 | 334 contacts → | ||||
Exact match “Finding exposures was never the hard part.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 271 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 | |||||
| 5 | 137 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 | |||||
| 6 | 124 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 | |||||
| 7 | 79 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 | |||||
| 8 | 46 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 | |||||
| 9 | 36 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 | |||||
| 10 | 32 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 | |||||
| 11 | 31 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 | |||||
| 12 | 25 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 | |||||
| 13 | 23 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 19 contacts → | ||||
Exact match “Randori, an IBM Company is your trusted adversary.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 18 contacts → | ||||
Exact match “Rotas Security is dedicated to ensuring our partners have a clear path to the highest possible security posture.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 8 contacts → | ||||
Exact match “Cyber risk questionnaires are frustrating.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “R-MOR is a cybersecurity firm founded in 2007.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “We believe that recent advancements in Large Language Models (LLMs) present a unique opportunity to automate or heavily augment the identification, assessment, and remediation of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “StealthNet AI is a technology driven cybersecurity company founded by offensive security professionals with real world testing backgrounds.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “eFortresses, Inc.(a Gartner 2013 Cool Vendor) is a AI powered Cybersecurity SaaS company that allows our customers to self-assess, get validated, get trained, get certified, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Autonomous Pentesting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “ATTACKD helps businesses see CyberSecurity from the attacker's perspective by focusing on real threats and vulnerabilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “Adversim is a cybersecurity software company focused on building modern platforms for offensive security teams.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “Redline Cyber Security delivers expert-led, manual penetration testing that identifies real risk through proven methodology-no gimmicks, no guesswork, and no shortcuts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “breach and attack simulation companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 24 of 54 breach and attack simulation companies based in the United States
See the full list, filter by size, metro and specialty, and access 1,632 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Breach and attack simulation companies based in the United States at a glance
As of Nov 6, 2026Companies by employee count
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 54 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 “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. 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 1,632 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.
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 based in the United States?
RevenueBase identified 54 company matches for breach and attack simulation companies associated with the United States 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 city has the most breach and attack simulation companies?
New York leads with 6 company records, followed by Atlanta (5) and San Francisco (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 1,632 professional contacts with verified work emails tracked across these 54 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.
Ready to reach these companies? Verified emails and direct dials for all 54 breach and attack simulation companies based in the United States. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 24 breach and attack simulation companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 54 matching company records for breach and attack simulation companies based in the United States, with 2,656 tracked contacts and 1,632 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 breach and attack simulation companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  horizon3.aihorizon3.aiHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 569 contacts → |
“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Penterapentera.ioHQ: Burlington, MA, United StatesReported employees: 201-500 | Burlington, MA, United States | 201-500 | Exact match | 485 contacts → |
“Pentera provides AI-powered Automated Security Validation for enterprise security teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Picus Securitypicussecurity.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 334 contacts → |
“Finding exposures was never the hard part.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Cymulatecymulate.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 271 contacts → |
“Designed for companies that want to manage their security posture against the evolving threat landscape.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Safebreachsafebreach.comHQ: Sunnyvale, CA, United StatesReported employees: 51-200 | Sunnyvale, CA, United States | 51-200 | Exact match | 137 contacts → |
“SafeBreach is on a mission to help organizations have certainty in their security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Praetorianpraetorian.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 124 contacts → |
“Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ondefendondefend.comHQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 79 contacts → |
“OnDefend specializes in advanced cybersecurity testing that delivers ongoing security validation across the most complex technology environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Ridge Security Technology INCridgesecurity.aiHQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 46 contacts → |
“Ridge Security empowers CISOs to build cyber resilience through AI-native continuous offensive security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Cloud Rangecloudrangecyber.comHQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 36 contacts → |
“ENSURE YOUR ORGANIZATION IS READY FOR ANY ATTACK, ANY TIME Most security leaders are asked the same question: Are we prepared?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Siembasiemba.ioHQ: Alpharetta, GA, United StatesReported employees: 11-50 | Alpharetta, GA, United States | 11-50 | Exact match | 32 contacts → |
“Siemba is an AI-powered cybersecurity platform that help teams continuously discover, validate, and remediate risks across the entire application ecosystem.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  RED Sentryredsentry.comHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 31 contacts → |
“Red Sentry delivers expert-led penetration testing to help businesses identify and fix security vulnerabilities before attackers can exploit them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Black Talon Securityblacktalonsecurity.comHQ: Katonah, FL, United StatesReported employees: 11-50 | Katonah, FL, United States | 11-50 | Exact match | 25 contacts → |
“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Vonahi Securityvonahi.ioHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 23 contacts → |
“vPenTest from Vonahi Security, a Kaseya company, is the leading SaaS platform that's revolutionizing network penetration testing through automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Randori, An IBM Companyrandori.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 19 contacts → |
“Randori, an IBM Company is your trusted adversary.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Rotas Securityrotassec.comHQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 18 contacts → |
“Rotas Security is dedicated to ensuring our partners have a clear path to the highest possible security posture.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Breachbits, INCbreachbits.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 8 contacts → |
“Cyber risk questionnaires are frustrating.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  R-Morr-mor.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 7 contacts → |
“R-MOR is a cybersecurity firm founded in 2007.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Specularspecular.aiHQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 6 contacts → |
“We believe that recent advancements in Large Language Models (LLMs) present a unique opportunity to automate or heavily augment the identification, assessment, and remediation of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  stealthnet.aistealthnet.aiHQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 5 contacts → |
“StealthNet AI is a technology driven cybersecurity company founded by offensive security professionals with real world testing backgrounds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Efortresses, INCefortresses.comHQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 5 contacts → |
“eFortresses, Inc.(a Gartner 2013 Cool Vendor) is a AI powered Cybersecurity SaaS company that allows our customers to self-assess, get validated, get trained, get certified, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Atvik Securityatviksecurity.comHQ: Sacramento, CA, United StatesReported employees: 1-10 | Sacramento, CA, United States | 1-10 | Exact match | 2 contacts → |
“Autonomous Pentesting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Attackdattackd.comHQ: Lewis Center, OH, United StatesReported employees: 1-10 | Lewis Center, OH, United States | 1-10 | Exact match | 2 contacts → |
“ATTACKD helps businesses see CyberSecurity from the attacker's perspective by focusing on real threats and vulnerabilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Adversimadversim.comHQ: Las Vegas, United StatesReported employees: 11-50 | Las Vegas, United States | 11-50 | Exact match | 2 contacts → |
“Adversim is a cybersecurity software company focused on building modern platforms for offensive security teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Redline Cyber Securityredlinecybersecurity.comHQ: Detroit, MI, United StatesReported employees: 1-10 | Detroit, MI, United States | 1-10 | Exact match | 2 contacts → |
“Redline Cyber Security delivers expert-led, manual penetration testing that identifies real risk through proven methodology-no gimmicks, no guesswork, and no shortcuts.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 54 company matches
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Breach and attack simulation companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
54 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 54 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for breach and attack simulation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many breach and attack simulation companies did RevenueBase find based in the United States?
The saved snapshot records 54 matching company records, 2,656 tracked contacts and 1,632 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 24 breach and attack simulation companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/breach-and-attack-simulation-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 24 breach and attack simulation companies based in the United States
RevenueBase records 54 matching company records for breach and attack simulation companies based in the United States, with 2,656 tracked contacts and 1,632 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 breach and attack simulation companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | horizon3.aihorizon3.ai HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 569 contacts → |
“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Penterapentera.io HQ: Burlington, MA, United StatesReported employees: 201-500 | Burlington, MA, United States | 201-500 | Exact match | 485 contacts → |
“Pentera provides AI-powered Automated Security Validation for enterprise security teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Picus Securitypicussecurity.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 334 contacts → |
“Finding exposures was never the hard part.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Cymulatecymulate.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 271 contacts → |
“Designed for companies that want to manage their security posture against the evolving threat landscape.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Safebreachsafebreach.com HQ: Sunnyvale, CA, United StatesReported employees: 51-200 | Sunnyvale, CA, United States | 51-200 | Exact match | 137 contacts → |
“SafeBreach is on a mission to help organizations have certainty in their security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Praetorianpraetorian.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 124 contacts → |
“Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ondefendondefend.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 79 contacts → |
“OnDefend specializes in advanced cybersecurity testing that delivers ongoing security validation across the most complex technology environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ridge Security Technology INCridgesecurity.ai HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 46 contacts → |
“Ridge Security empowers CISOs to build cyber resilience through AI-native continuous offensive security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Cloud Rangecloudrangecyber.com HQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 36 contacts → |
“ENSURE YOUR ORGANIZATION IS READY FOR ANY ATTACK, ANY TIME Most security leaders are asked the same question: Are we prepared?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Siembasiemba.io HQ: Alpharetta, GA, United StatesReported employees: 11-50 | Alpharetta, GA, United States | 11-50 | Exact match | 32 contacts → |
“Siemba is an AI-powered cybersecurity platform that help teams continuously discover, validate, and remediate risks across the entire application ecosystem.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | RED Sentryredsentry.com HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 31 contacts → |
“Red Sentry delivers expert-led penetration testing to help businesses identify and fix security vulnerabilities before attackers can exploit them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Black Talon Securityblacktalonsecurity.com HQ: Katonah, FL, United StatesReported employees: 11-50 | Katonah, FL, United States | 11-50 | Exact match | 25 contacts → |
“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Vonahi Securityvonahi.io HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 23 contacts → |
“vPenTest from Vonahi Security, a Kaseya company, is the leading SaaS platform that's revolutionizing network penetration testing through automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Randori, An IBM Companyrandori.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 19 contacts → |
“Randori, an IBM Company is your trusted adversary.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Rotas Securityrotassec.com HQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 18 contacts → |
“Rotas Security is dedicated to ensuring our partners have a clear path to the highest possible security posture.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Breachbits, INCbreachbits.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 8 contacts → |
“Cyber risk questionnaires are frustrating.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | R-Morr-mor.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 7 contacts → |
“R-MOR is a cybersecurity firm founded in 2007.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Specularspecular.ai HQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 6 contacts → |
“We believe that recent advancements in Large Language Models (LLMs) present a unique opportunity to automate or heavily augment the identification, assessment, and remediation of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | stealthnet.aistealthnet.ai HQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 5 contacts → |
“StealthNet AI is a technology driven cybersecurity company founded by offensive security professionals with real world testing backgrounds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Efortresses, INCefortresses.com HQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 5 contacts → |
“eFortresses, Inc.(a Gartner 2013 Cool Vendor) is a AI powered Cybersecurity SaaS company that allows our customers to self-assess, get validated, get trained, get certified, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Atvik Securityatviksecurity.com HQ: Sacramento, CA, United StatesReported employees: 1-10 | Sacramento, CA, United States | 1-10 | Exact match | 2 contacts → |
“Autonomous Pentesting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Attackdattackd.com HQ: Lewis Center, OH, United StatesReported employees: 1-10 | Lewis Center, OH, United States | 1-10 | Exact match | 2 contacts → |
“ATTACKD helps businesses see CyberSecurity from the attacker's perspective by focusing on real threats and vulnerabilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Adversimadversim.com HQ: Las Vegas, United StatesReported employees: 11-50 | Las Vegas, United States | 11-50 | Exact match | 2 contacts → |
“Adversim is a cybersecurity software company focused on building modern platforms for offensive security teams.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Redline Cyber Securityredlinecybersecurity.com HQ: Detroit, MI, United StatesReported employees: 1-10 | Detroit, MI, United States | 1-10 | Exact match | 2 contacts → |
“Redline Cyber Security delivers expert-led, manual penetration testing that identifies real risk through proven methodology-no gimmicks, no guesswork, and no shortcuts.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 54 company matches
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Breach and attack simulation companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
54 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 54 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for breach and attack simulation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many breach and attack simulation companies did RevenueBase find based in the United States?
The saved snapshot records 54 matching company records, 2,656 tracked contacts and 1,632 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 24 breach and attack simulation companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/breach-and-attack-simulation-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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