Company lists · Data refreshed September 2026

Top 25 Dcs cybersecurity companies based in New York, United States

Name: Dcs cybersecurity 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 Sep 28, 2026 92 companies tracked

RevenueBase identified 92 dcs cybersecurity companies headquartered in New York, United States as of September 2026 and tracks 2,032 professional contacts across them, including 901 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers dcs cybersecurity companies headquartered in New York, 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

92Companies

2,032Contacts tracked

901Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest dcs cybersecurity companies based in New York, United States

Ranked by team size

Top 25 of 92 dcs cybersecurity companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to dcs cybersecurity 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	Bluevoyant	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	683 contacts →
	Indirect evidence “BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Source: RevenueBase Database · checked Sep 28, 2026
2	AGIO	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	200 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
3	Harbor IT	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	163 contacts →
	Partial evidence “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Source: RevenueBase Database · checked Sep 28, 2026
4	Morphisec	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	104 contacts →
	Indirect evidence “We empower organizations with resilient, self-healing capabilities that prevent and neutralize even the most advanced cyber threats.” Source: RevenueBase Database · checked Sep 28, 2026
5	Nopalcyber	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	76 contacts →
	Partial evidence “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: RevenueBase Database · checked Sep 28, 2026
6	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
7	Port53	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Source: RevenueBase Database · checked Sep 28, 2026
8	Ciphertechs A Cybermaxx Company	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	51-200	28 contacts →
	Partial evidence “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: RevenueBase Database · checked Sep 28, 2026
9	ACA Aponix	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	19 contacts →
	Partial evidence “ACA Aponix, a division of ACA Group, provides cybersecurity and technology risk assessments, vendor and M&A diligence services, network testing, and advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Unit 221b	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…” Source: RevenueBase Database · checked Sep 28, 2026
11	Lifars, LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “LIFARS, a SecurityScorecard Company is a global leader in Incident Response, Digital Forensics, Ransomware Mitigation, and Cyber Resiliency services.” Source: RevenueBase Database · checked Sep 28, 2026
12	Cyberconvoy	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “We’re the nemesis of evil hackers attempting to take control of your system so they can extort money.” Source: RevenueBase Database · checked Sep 28, 2026
13	Silent Breach	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “At Silent Breach, we think like a hacker and defend like a pro.” Source: RevenueBase Database · checked Sep 28, 2026
14	Analytica42	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Analytica42 isn’t just a service provider; we’re a trusted partner in your security operations.” Source: RevenueBase Database · checked Sep 28, 2026
15	Bastionx	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “At BastionX, we revolutionize how businesses harness technology.” Source: RevenueBase Database · checked Sep 28, 2026
16	Resonance Security	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Resonance Security offers full spectrum cybersecurity aggregation software for institutions and individuals that makes protecting against any cybersecurity threat effortless no…” Source: RevenueBase Database · checked Sep 28, 2026
17	Sayfer Cyber Security	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Sayfer, where people and technology meet to overcome web3 and blockchain challenges.” Source: RevenueBase Database · checked Sep 28, 2026
18	Holistic Cyber Holisticyber	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	8 contacts →
	Indirect evidence “HolistiCyber’s mission is to assist corporations in defending themselves from the new phase of evolution in Cyber threats - not only in volume, but in the level of sophistication.” Source: RevenueBase Database · checked Sep 28, 2026
19	MITG	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “MITG exists because most businesses don't need another security vendor.” Source: RevenueBase Database · checked Sep 28, 2026
20	Sniper Watch	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Sniper Watch is an AI-powered cybersecurity and technology advisory + tactical deployment firm that helps organizations protect revenue, reduce risk, and scale operations in…” Source: RevenueBase Database · checked Sep 28, 2026
21	Firedome	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Firedome, a cybersecurity trailblazer, specializes in detection and response solutions for networks and IoT devices tailored for enterprise settings.” Source: RevenueBase Database · checked Sep 28, 2026
22	Defensible Technology	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Your technology should scale with you.” Source: RevenueBase Database · checked Sep 28, 2026
23	Innercircle Technology Advisors INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “InnerCircle Technology Advisors is a New York City based Information Technology firm.” Source: RevenueBase Database · checked Sep 28, 2026
24	Nathanial Rand	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Nathanial Rand, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
25	Citanex	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Citanex was founded by a former US Secret Service Electronic Crimes Agent with advisory credentials from Harvard, MIT, and the Department of Justice.” 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: dcs cybersecurity 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 dcs cybersecurity companies.
Partial evidence: Its own public description names part of dcs cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name dcs cybersecurity 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 92 dcs cybersecurity companies based in New York, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 901 reachable decision-makers.

Free signup · no credit card

View the full list →

Dcs cybersecurity companies based in New York, United States at a glance

As of Sep 28, 2026

44.3%Verified-email coverage

22.1Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 92 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 dcs cybersecurity 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 New York, United States whose own description of what they do matches “dcs cybersecurity 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 dcs cybersecurity 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 dcs cybersecurity companies, and records with no verified work email. Companies headquartered outside New York 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, 901 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.

Dcs cybersecurity companies by metro in the United States

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 dcs cybersecurity 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 dcs cybersecurity companies are there based in New York, United States?

RevenueBase identified 92 dcs cybersecurity companies headquartered in New York, 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?

Bluevoyant, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most dcs cybersecurity companies?

New York leads the United States with 92 headquartered companies, followed by Washington (60) and Miami (59).

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 901 verified decision-maker contacts tracked across these 92 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.

Ready to reach these companies? Verified emails and direct dials for all 92 dcs cybersecurity companies based in New York, United States. Start with a free account, no credit card.

Download this list →

Related lists

Dcs cybersecurity companies by geography

Browse the directory

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.