Company lists · Data refreshed October 2026

Top 22 Cybersecurity professional development software companies based in New York, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 105 companies tracked

RevenueBase identified 105 company matches for cybersecurity professional development software companies associated with New York, United States as of October 2026 and tracks 2,061 professional contacts across them, including 406 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for cybersecurity professional development software companies associated with New York, 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

105Companies

2,061Contacts tracked

406Verified emails

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The 22 largest cybersecurity professional development software companies based in New York, United States

Ranked by team size

Top 22 of 105 company matches for cybersecurity professional development software companies based in New York, 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	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
2	AGIO	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	201-500	200 contacts →
	Exact match “Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Harbor IT	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	201-500	163 contacts →
	Exact match “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Nopalcyber	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	51-200	76 contacts →
	Exact match “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Eretmis INC	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	n/a	66 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Altourage	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	51-200	58 contacts →
	Exact match “Altourage is a New York City-based managed IT and cybersecurity provider built for organizations that operate in high-stakes, fast-moving environments.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	OSEC	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	38 contacts →
	Exact match “We're the security consultants Fortune 500s call when they're in real trouble, the ones who find what others miss, who speak CEO and CISO fluently.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Ciphertechs A Cybermaxx Company	Exact match	New York, United StatesHQ recorded Oct 1, 2026	51-200	28 contacts →
	Exact match “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Deeptech, INC	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	26 contacts →
	Exact match “DeepTech, your IT solutions partner, is redefining how IT is managed by exceeding the level of service that companies have come to expect from traditional Managed Service…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Rocheston	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	19 contacts →
	Exact match “Rocheston provides training and certification in the field of Cybersecurity.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	White Hack Labs	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1-10	9 contacts →
	Exact match “Our primary business is the digital security of your assets.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Resonance Security	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Resonance Security offers full spectrum cybersecurity aggregation software for institutions and individuals that makes protecting against any cybersecurity threat effortless no…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Seaglass Technology, LLC	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “At SeaGlass Technology we specialize using our proprietary methodology and processes developed from our VCISO team and experienced tech teams approach to managing Hedge Funds IT &…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Sayfer Cyber Security	Exact match	New York, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Sayfer, where people and technology meet to overcome web3 and blockchain challenges.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Decoded Technologies INC	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	6 contacts →
	Exact match “Decoded Solutions is a dynamic tech company with over 10 years of experience providing custom software solutions to businesses in the United States.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Kopidion	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “Kopidion consists of highly qualified cyber operations and information security professionals.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Protecxo	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	201-500	5 contacts →
	Exact match “At Protecxo, we pride ourselves on being a leading authority in cybersecurity solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Cyberminds Solutions	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “With an increased focus on Cybersecurity, Boards are demanding a coherent and compelling Cyber strategy as a part of their annual growth plans.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Citanex	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “Citanex was founded by a former US Secret Service Electronic Crimes Agent with advisory credentials from Harvard, MIT, and the Department of Justice.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	NEXO	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Connecting Cybersecurity Leaders with Elite Talent in the USA At Nexo, we specialize in helping companies with ambitious growth plans find and hire top-tier cybersecurity…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Velstadt Cybersecurity	Exact match	New York, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “Velstadt is a cybersecurity provider focused on delivering both offensive and defensive security services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Bytium	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Bytium LLC is a U.S-registered cybersecurity and IT solutions firm dedicated to helping organizations protect their information assets and maintain operational resilience.” 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 22 of 105 cybersecurity professional development software companies based in New York, United States

See the full list, filter by size, metro and specialty, and access 406 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity professional development software companies based in New York, United States at a glance

As of Oct 1, 2026

19.7%Verified-email coverage

19.6Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 105 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 New York, 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 406 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 in the United States

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 New York, United States?

RevenueBase identified 105 company matches for cybersecurity professional development software companies associated with New York, 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?

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

Which city in the United States has the most cybersecurity professional development software companies?

New York leads the United States 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 406 professional contacts with verified work emails tracked across these 105 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.