Company lists · Data refreshed September 2026

Top 25 Managed cybersecurity companies for retail based in New York, United States

RevenueBase identified 61 managed cybersecurity companies for retail headquartered in New York, United States as of September 2026 and tracks 2,124 professional contacts across them, including 1,019 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers managed cybersecurity companies for retail 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
61Companies
2,124Contacts tracked
1,019Verified emails
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The 25 largest managed cybersecurity companies for retail based in New York, United States

Ranked by team size
Top 25 of 61 managed cybersecurity companies for retail 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 managed cybersecurity companies for retail: 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
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 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 28, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500206 contacts →

Indirect evidence

“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 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 28, 2026
4Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500200 contacts →

Strong 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
5Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20076 contacts →

Strong 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
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5066 contacts →

Indirect evidence

“Elpha Secure is a cyber insurance MGA serving small and midsize businesses across a range of industries.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026n/a66 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20058 contacts →

Strong 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 28, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5057 contacts →

Partial evidence

“nsKnox is a cybersecurity company focused on Corporate Payment Security, founded and led by Alon Cohen, Founder & former CEO of CyberArk (NASDAQ: CYBR).”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5057 contacts →

Partial evidence

“Big Idea Technology manages IT for small businesses headquartered in the New York City metropolitan area.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 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 28, 2026
12Partial evidenceNew York, United StatesHQ checked Sep 28, 202651-20028 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceNew York, United StatesHQ checked Sep 28, 202611-5025 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20017 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceNew York, United StatesHQ checked Sep 28, 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 28, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Our primary business is the digital security of your assets.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-509 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
18Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“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 &…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceNew York, United StatesHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“Sayfer, where people and technology meet to overcome web3 and blockchain challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Worklyn Partners is a holding company that makes control investments in growth-oriented cybersecurity and IT services companies.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“Your technology should scale with you.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“InnerCircle Technology Advisors is a New York City based Information Technology firm.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-505 contacts →

Partial evidence

“Cybersecurity Private Equity Specialist with a National Security Heritage Investment focus is on control transactions in the cyber mid-market Prior portfolios have included…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-504 contacts →

Indirect evidence

“Over 95% of SMB's close their doors post cyber attack!”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-504 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

Showing 25 of 61 managed cybersecurity companies for retail based in New York, United States

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Managed cybersecurity companies for retail based in New York, United States at a glance

As of Sep 28, 2026
48.0%Verified-email coverage
34.8Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
22
51-200
5
201-500
3
501-1,000
4

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 61 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 managed cybersecurity companies for retail, 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 “managed cybersecurity companies for retail”. 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 managed cybersecurity companies for retail), 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 managed cybersecurity companies for retail, 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, 1,019 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 managed cybersecurity companies for retail, 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 managed cybersecurity companies for retail are there based in New York, United States?

RevenueBase identified 61 managed cybersecurity companies for retail 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 managed cybersecurity companies for retail?

New York leads the United States with 61 headquartered companies, followed by Houston (39) and Dallas (38).

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 1,019 verified decision-maker contacts tracked across these 61 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.