Company lists · Data refreshed October 2026

Top 25 Cybersecurity professional development software companies based in the United States

Name: Cybersecurity professional development software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 3,231 companies tracked

RevenueBase identified 3,231 company matches for cybersecurity professional development software companies associated with the United States as of October 2026 and tracks 77,517 professional contacts across them, including 28,423 with verified work emails. New York is the largest hub.

This list covers company matches for cybersecurity professional development software 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 October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

3,231Companies

77,517Contacts tracked

28,423Verified emails

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The 25 largest cybersecurity professional development software companies based in the United States

Ranked by team size

Top 25 of 3,231 company matches for cybersecurity professional development software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Oct 1, 2026	10001+	14,289 contacts →
	Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Oct 1, 2026	10001+	11,169 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Sans Institute	Exact match	Rockville, MD, United StatesHQ recorded Oct 1, 2026	n/a	1,886 contacts →
	Exact match “SANS is the most trusted and by far the largest source for information and cybersecurity training and certification in the world.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Fortra	Exact match	Eden Prairie, MN, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,648 contacts →
	Exact match “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Ec-Council	Exact match	Albuquerque, NM, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,294 contacts →
	Exact match “EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Offsec	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	201-500	879 contacts →
	Exact match “Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Oct 1, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Application Specialist Kompany ASK	Exact match	Lansing, MI, United StatesHQ recorded Oct 1, 2026	n/a	785 contacts →
	Exact match “ASK is now Convergence Networks!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	ACI Learning	Exact match	Colorado Springs, CO, United StatesHQ recorded Oct 1, 2026	201-500	530 contacts →
	Exact match “ACI Learning trains the leaders in Audit, Cybersecurity, and Information Technology.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	523 contacts →
	Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Aujas Cybersecurity	Exact match	Cupertino, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	473 contacts →
	Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Novacoast	Exact match	Wichita, KS, United StatesHQ recorded Oct 1, 2026	201-500	369 contacts →
	Exact match “Novacoast is an international cybersecurity company specializing in IT services and software development.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	horizon3.ai	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	201-500	364 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 · Oct 1, 2026 · View company records in RevenueBase
18	Dark Wolf	Exact match	Herndon, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	348 contacts →
	Exact match “Dark Wolf provides DevSecOps agile software development, information operations, penetration testing and incident response, applied research and rapid prototyping, machine…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	ONTIC	Exact match	Austin, TX, United StatesHQ recorded Oct 1, 2026	201-500	317 contacts →
	Exact match “At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Security Risk Advisors	Exact match	Philadelphia, PA, United StatesHQ recorded Oct 1, 2026	201-500	315 contacts →
	Exact match “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Cipher A Prosegur Company	Exact match	Miami, FL, United StatesHQ recorded Oct 1, 2026	201-500	295 contacts →
	Exact match “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Millennium Corporation	Exact match	Arlington, VA, United StatesHQ recorded Oct 1, 2026	201-500	265 contacts →
	Exact match “For nearly two decades, Millennium Corporation has been operating on the leading edge of cybersecurity.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Baxter Clewis Cybersecurity	Exact match	Cedar Hill, TX, United StatesHQ recorded Oct 1, 2026	201-500	255 contacts →
	Exact match “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Apriorit	Exact match	Lynn, MA, United StatesHQ recorded Oct 1, 2026	201-500	249 contacts →
	Exact match “Apriorit is a full-cycle software development company that has been delivering cutting-edge IT solutions with security at the core since 2002.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Lumifi	Exact match	Scottsdale, AZ, United StatesHQ recorded Oct 1, 2026	51-200	249 contacts →
	Exact match “Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Recorded in the RevenueBase company graph · Oct 1, 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 “cybersecurity professional development software 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 25 of 3,231 cybersecurity professional development software companies based in the United States

See the full list, filter by size, metro and specialty, and access 28,423 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity professional development software companies based in the United States at a glance

As of Oct 1, 2026

36.7%Verified-email coverage

24.0Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · New York

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

1,801

11-50

998

51-200

307

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,231 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 “cybersecurity professional development software 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 28,423 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 October 1, 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.

Cybersecurity professional development software companies by metro

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 “cybersecurity professional development software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity professional development software companies are there based in the United States?

RevenueBase identified 3,231 company matches for cybersecurity professional development software companies associated with the United States as of October 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?

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

Which city has the most cybersecurity professional development software companies?

New York leads with 105 company records, followed by Washington (71) and Dallas (57).

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 28,423 professional contacts with verified work emails tracked across these 3,231 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 October 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 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.