Company lists · Data refreshed September 2026

Top 25 Industrial cybersecurity training companies based in the United States

Name: Industrial cybersecurity training companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 481 companies tracked

RevenueBase identified 481 industrial cybersecurity training companies headquartered in the United States as of September 2026 and tracks 12,333 professional contacts across them, including 4,205 with verified work emails. Houston is the largest hub.

This list covers industrial cybersecurity training companies 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 28, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

481Companies

12,333Contacts tracked

4,205Verified emails

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The 25 largest industrial cybersecurity training companies based in the United States

Ranked by team size

Top 25 of 481 industrial cybersecurity training companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial cybersecurity training companies: 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	Trellix	Partial evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,447 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 28, 2026
2	Ec-Council	Indirect evidence	Albuquerque, NM, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,294 contacts →
	Indirect evidence “EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Source: RevenueBase Database · checked Sep 28, 2026
3	PAS	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	1,231 contacts →
	Indirect evidence “PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Source: RevenueBase Database · checked Sep 28, 2026
4	Offsec	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	879 contacts →
	Partial evidence “Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources.” Source: RevenueBase Database · checked Sep 28, 2026
5	Dragos, INC	Strong evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	501-1,000	551 contacts →
	Strong evidence “Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Source: RevenueBase Database · checked Sep 28, 2026
6	Nozomi Networks	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	375 contacts →
	Indirect evidence “We protect the world’s critical infrastructure from cyber threats.” Source: RevenueBase Database · checked Sep 28, 2026
7	Webroot	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 28, 2026	501-1,000	199 contacts →
	Indirect evidence “Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Source: RevenueBase Database · checked Sep 28, 2026
8	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 28, 2026	201-500	182 contacts →
	Indirect evidence “With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Source: RevenueBase Database · checked Sep 28, 2026
9	Ampcus Cyber	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	170 contacts →
	Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 28, 2026
10	Evolve Security Academy	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	n/a	166 contacts →
	Strong evidence “Evolve Security is a technical cybersecurity firm and the home of Evolve Academy, offering holistic and advanced cybersecurity training and continuously ranked #1 in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
11	Foxguard	Indirect evidence	Christiansburg, VA, United StatesHQ checked Sep 28, 2026	51-200	116 contacts →
	Indirect evidence “Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
12	Directdefense	Indirect evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	111 contacts →
	Indirect 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 28, 2026
13	Symposia	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	104 contacts →
	Partial evidence “An end-to-end intelligence platform that delivers Cybersecurity Trust Services & hands-on education to global industry leaders.” Source: RevenueBase Database · checked Sep 28, 2026
14	Ninjio Cybersecurity Awareness Training	Strong evidence	Westlake Village, CA, United StatesHQ checked Sep 28, 2026	51-200	101 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 28, 2026
15	Dispel	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	51-200	86 contacts →
	Partial evidence “Dispel delivers security that makes industrial operations run faster.” Source: RevenueBase Database · checked Sep 28, 2026
16	Eretmis INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	n/a	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Chiron Technology Services, INC	Strong evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	59 contacts →
	Strong evidence “Chiron Technology Services is a cybersecurity and mission-support company delivering advanced cyber operations training, workforce development, engineering services, and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Industrial Defender	Partial evidence	Foxborough, MA, United StatesHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Industrial Defender protects the world’s critical infrastructure from cyberattacks.” Source: RevenueBase Database · checked Sep 28, 2026
19	INE Security	Partial evidence	Cary, NC, United StatesHQ checked Sep 28, 2026	11-50	46 contacts →
	Partial evidence “We are innovating the IT Security training market through online courses paired with practical hands-on virtual labs.” Source: RevenueBase Database · checked Sep 28, 2026
20	Practical Devsecops	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Strong evidence “Practical DevSecOps is a global cybersecurity education company specializing in hands-on DevSecOps, AI Security, and Application Security training and certifications.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cloud Range	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	11-50	38 contacts →
	Indirect evidence “ENSURE YOUR ORGANIZATION IS READY FOR ANY ATTACK, ANY TIME Most security leaders are asked the same question: Are we prepared?” Source: RevenueBase Database · checked Sep 28, 2026
22	Redspin, A Division Of Clearwater	Strong evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	51-200	37 contacts →
	Strong evidence “Redspin, a division of Clearwater, has become one of the most trusted cybersecurity companies for the Defense Industrial Base.” Source: RevenueBase Database · checked Sep 28, 2026
23	Corsha	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Corsha securely connects the operational systems that run our world.” Source: RevenueBase Database · checked Sep 28, 2026
24	Proofpoint Security Awareness Training	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	51-200	36 contacts →
	Partial evidence “Proofpoint Security Awareness Training was acquired by Proofpoint.” Source: RevenueBase Database · checked Sep 28, 2026
25	CMD Ctrl	Partial evidence	Woburn, MA, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “CMD+CTRL is a pioneer in software security training.” Source: RevenueBase Database · checked Sep 28, 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: industrial cybersecurity training companies. 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 industrial cybersecurity training companies.
Partial evidence: Its own public description names part of industrial cybersecurity training companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial cybersecurity training companies. 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 481 industrial cybersecurity training companies based in the United States

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Industrial cybersecurity training companies based in the United States at a glance

As of Sep 28, 2026

34.1%Verified-email coverage

25.6Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

260

11-50

167

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 481 companies.

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 industrial cybersecurity training companies, 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 “industrial cybersecurity training companies”. 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 industrial cybersecurity training companies), 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 industrial cybersecurity training companies, 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, 4,205 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 28, 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.

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 industrial cybersecurity training companies, 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 industrial cybersecurity training companies are there based in the United States?

RevenueBase identified 481 industrial cybersecurity training companies 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?

Trellix, headquartered in Plano, tops this list with the largest team on record.

Which city has the most industrial cybersecurity training companies?

Houston leads with 21 headquartered companies, followed by New York (18) and Atlanta (9).

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 4,205 verified decision-maker contacts tracked across these 481 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 28, 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.