Company lists · Data refreshed September 2026

Top 25 Cybersecurity skills testing platforms based in the United States

Name: Cybersecurity skills testing platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 828 companies tracked

RevenueBase identified 828 cybersecurity skills testing platforms headquartered in the United States as of September 2026 and tracks 13,848 professional contacts across them, including 4,111 with verified work emails and 3,356 with mobile numbers. New York is the largest hub.

This list covers cybersecurity skills testing platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

828Companies

13,848Contacts tracked

4,111Verified emails

3,356Mobile numbers

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The 25 largest cybersecurity skills testing platforms based in the United States

Ranked by team size

Top 25 of 828 cybersecurity skills testing platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity skills testing platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sans Institute	Partial evidence	Rockville, MD, United States	n/a	1,877 contacts →
	Partial evidence “SANS is the most trusted and by far the largest source for information and cybersecurity training and certification in the world.” Source: RevenueBase Database · checked Sep 1, 2026
2	Ec-Council	Indirect evidence	Albuquerque, NM, United States	1,001-5,000	1,269 contacts →
	Indirect evidence “EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Source: RevenueBase Database · checked Sep 1, 2026
3	Offsec	Strong evidence	New York, NY, United States	201-500	878 contacts →
	Strong evidence “Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources.” Source: RevenueBase Database · checked Sep 1, 2026
4	Pentera	Indirect evidence	Burlington, MA, United States	201-500	484 contacts →
	Indirect evidence “Pentera provides AI-powered Automated Security Validation for enterprise security teams.” Source: RevenueBase Database · checked Sep 1, 2026
5	horizon3.ai	Partial evidence	Durham, NC, United States	201-500	356 contacts →
	Partial evidence “Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Source: RevenueBase Database · checked Sep 1, 2026
6	Cobalt	Indirect evidence	San Francisco, CA, United States	201-500	345 contacts →
	Indirect evidence “Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Source: RevenueBase Database · checked Sep 1, 2026
7	Synack	Partial evidence	Redwood City, CA, United States	201-500	246 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 1, 2026
8	Metacompliance	Indirect evidence	Atlanta, GA, United States	201-500	237 contacts →
	Indirect evidence “With over 18 years of experience in Cyber Security and Compliance, MetaCompliance provides a smart, practical solution for managing human risk.” Source: RevenueBase Database · checked Sep 1, 2026
9	Giac Certifications	Partial evidence	Bethesda, MD, United States	201-500	184 contacts →
	Partial evidence “There are a multitude of information security certifications, but only GIAC certifications validate the true hands-on skills that go beyond theory and test the pragmatics of…” Source: RevenueBase Database · checked Sep 1, 2026
10	Black Hills Information Security	Partial evidence	Spearfish, SD, United States	51-200	130 contacts →
	Partial evidence “We specialize in penetration testing, red teaming, threat hunting, Active SOC services, and educational webinars, workshops, and training.” Source: RevenueBase Database · checked Sep 1, 2026
11	Cybrary	Strong evidence	Riverdale, MD, United States	51-200	127 contacts →
	Strong evidence “Cybrary is the premier cybersecurity professional development platform, providing the collective knowledge of the industry’s top experts and leading organizations to equip IT and…” Source: RevenueBase Database · checked Sep 1, 2026
12	XBOW	Indirect evidence	Seattle, WA, United States	201-500	122 contacts →
	Indirect evidence “XBOW is the autonomous offensive security company redefining cyber defense for the AI era.” Source: RevenueBase Database · checked Sep 1, 2026
13	Surpass Assessment	Indirect evidence	West Chester, PA, United States	51-200	115 contacts →
	Indirect evidence “Surpass is a global leader in digital assessment services, providing credentialing organizations worldwide with an extensive test center network, high-quality online proctoring…” Source: RevenueBase Database · checked Sep 1, 2026
14	Directdefense	Partial evidence	Denver, CO, United States	51-200	112 contacts →
	Partial evidence “DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Source: RevenueBase Database · checked Sep 1, 2026
15	Ioactive, INC	Indirect evidence	Atlanta, GA, United States	51-200	105 contacts →
	Indirect evidence “IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Source: RevenueBase Database · checked Sep 1, 2026
16	Ninjio Cybersecurity Awareness Training	Strong evidence	Westlake Village, CA, United States	51-200	102 contacts →
	Strong evidence “NINJIO is an all-in-one solution that lowers human-based cybersecurity risk through engaging training, personalized testing, and insightful reporting.” Source: RevenueBase Database · checked Sep 1, 2026
17	Plextrac	Partial evidence	Boise, ID, United States	51-200	92 contacts →
	Partial evidence “PlexTrac is the leading AI-powered platform for pentest reporting and threat exposure management, trusted by Fortune 500 companies and top security providers including Expedia…” Source: RevenueBase Database · checked Sep 1, 2026
18	Whitehat Dynamic By Synopsys	Indirect evidence	San Jose, CA, United States	201-500	89 contacts →
	Indirect evidence “NTT Application Security is driving the future of application security.” Source: RevenueBase Database · checked Sep 1, 2026
19	Strike	Indirect evidence	New York, United States	51-200	84 contacts →
	Indirect evidence “Strike redefine la seguridad ofensiva con una plataforma always-on de Validación Híbrida Continua.” Source: RevenueBase Database · checked Sep 1, 2026
20	Thrivedx	Partial evidence	Miami, FL, United States	1,001-5,000	78 contacts →
	Partial evidence “ThriveDX, the global leader in cybersecurity training and talent development, collaborates with academic institutions and corporations worldwide to deliver training and advanced…” Source: RevenueBase Database · checked Sep 1, 2026
21	Ondefend	Strong evidence	Jacksonville, FL, United States	51-200	72 contacts →
	Strong evidence “OnDefend specializes in advanced cybersecurity testing that delivers ongoing security validation across the most complex technology environments.” Source: RevenueBase Database · checked Sep 1, 2026
22	WIZER	Partial evidence	Boston, MA, United States	51-200	67 contacts →
	Partial evidence “Wizer is a security awareness platform that helps you quickly deliver impactful, enjoyable, and interactive training and dynamic phishing simulations as well as secure code…” Source: RevenueBase Database · checked Sep 1, 2026
23	Apollo Information Systems	Partial evidence	Dallas, TX, United States	51-200	63 contacts →
	Partial evidence “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: RevenueBase Database · checked Sep 1, 2026
24	Evolve Security	Strong evidence	Chicago, IL, United States	51-200	57 contacts →
	Strong evidence “Evolve Security is an offensive cybersecurity solution, delivering continuous penetration testing with the optimal blend of AI automation and human expertise, providing peace of…” Source: RevenueBase Database · checked Sep 1, 2026
25	Breakpoint Labs	Partial evidence	Falls Church, VA, United States	51-200	55 contacts →
	Partial evidence “BreakPoint Labs, a Valiant Solutions Company, delivers offensive and defensive cybersecurity to the Department of War, federal agencies, and commercial organizations.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity skills testing platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity skills testing platforms.
Partial evidence: Its own public description names part of cybersecurity skills testing platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity skills testing platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 828 cybersecurity skills testing platforms based in the United States

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Cybersecurity skills testing platforms based in the United States at a glance

As of Sep 1, 2026

29.7%Verified-email coverage

24.2%Mobile-number coverage

16.7Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

462

11-50

285

51-200

201-500

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity skills testing platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “cybersecurity skills testing platforms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity skills testing platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity skills testing platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 4,111 across the full list. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity skills testing platforms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity skills testing platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity skills testing platforms are there based in the United States?

RevenueBase identified 828 cybersecurity skills testing platforms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Sans Institute, headquartered in Rockville, tops this list with the largest team on record.

Which city has the most cybersecurity skills testing platforms?

New York leads with 40 headquartered companies, followed by San Francisco (26) and Austin (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,111 verified decision-maker contacts tracked across these 828 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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 Smart Search, 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.