Company lists · Data refreshed September 2026

Top 23 Infrastructure security companies based in New York, United States

RevenueBase identified 142 infrastructure security companies headquartered in New York, United States as of September 2026 and tracks 3,744 professional contacts across them, including 1,455 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers infrastructure security 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 14, 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 14, 2026 86% judged on-target in blind review
142Companies
3,744Contacts tracked
1,455Verified emails
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The 23 largest infrastructure security companies based in New York, United States

Ranked by team size
Top 23 of 142 infrastructure security companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure security 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000725 contacts →

Partial evidence

“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000683 contacts →

Indirect evidence

“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-200219 contacts →

Indirect evidence

“Kraft Kennedy is a multidisciplinary technology and management consulting firm.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000206 contacts →

Partial evidence

“Stroz Friedberg is now LevelBlue, the world's largest pure-play Managed Security Services Provider (MSSP).”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500200 contacts →

Indirect 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 14, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500163 contacts →

Indirect evidence

“Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-200104 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 14, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20076 contacts →

Indirect evidence

“NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026n/a66 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20065 contacts →

Partial evidence

“RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20058 contacts →

Indirect evidence

“Altourage is a New York City-based managed IT and cybersecurity provider built for organizations that operate in high-stakes, fast-moving environments.”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20055 contacts →

Partial 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 14, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20054 contacts →

Indirect evidence

“White Wings Technologies is a forward-thinking IT solutions provider, specializing in cloud computing, cybersecurity, managed IT services, and strategic IT consulting.”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5038 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceNew York, United StatesHQ checked Sep 14, 202651-20028 contacts →

Indirect evidence

“CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5026 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceNew York, United StatesHQ checked Sep 14, 202611-5025 contacts →

Indirect evidence

“Riverstrong - your trusted partner in IT and cybersecurity managed services.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5020 contacts →

Partial evidence

“Future-Ready Security for Today’s Decision-Makers.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-50019 contacts →

Indirect 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 14, 2026
20Strong evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-20017 contacts →

Strong evidence

“Cohere offers managed security and IT infrastructure services all under one roof.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5016 contacts →

Indirect 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 14, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5016 contacts →

Partial evidence

“WizNucleus provides cyber & physical security solutions for mission-critical facilities, including nuclear and electric.”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceNew York, United StatesHQ checked Sep 14, 202611-5012 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 14, 2026

Showing 23 of 142 infrastructure security companies based in New York, United States

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Infrastructure security companies based in New York, United States at a glance

As of Sep 14, 2026
38.9%Verified-email coverage
26.4Average contacts per company
11-50Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
54
51-200
20
201-500
6
501-1,000
6
1,001-5,000
1

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 142 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 infrastructure security 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 “infrastructure security 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 infrastructure security 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 infrastructure security 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, 1,455 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 14, 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.

Infrastructure security 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 infrastructure security 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 infrastructure security companies are there based in New York, United States?

RevenueBase identified 142 infrastructure security 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?

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

Which city in the United States has the most infrastructure security companies?

New York leads the United States with 142 headquartered companies, followed by Houston (102) and Washington (96).

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 1,455 verified decision-maker contacts tracked across these 142 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 14, 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.