Company lists · Data refreshed September 2026

Top 25 Information security marketing firms based in New York, United States

RevenueBase identified 110 information security marketing firms headquartered in New York, United States as of September 2026 and tracks 1,046 professional contacts across them, including 362 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers information security marketing firms 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
110Companies
1,046Contacts tracked
362Verified emails
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The 25 largest information security marketing firms based in New York, United States

Ranked by team size
Top 25 of 110 information security marketing firms 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 information security marketing firms: 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 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
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200119 contacts →

Indirect evidence

“CyberRisk Alliance (CRA) was formed to help cybersecurity professionals face the challenges and obstacles that threaten the success and prosperity of their organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026n/a66 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5056 contacts →

Indirect evidence

“Rhymetec delivers premium cybersecurity and data privacy solutions for modern SaaS businesses, combining human expertise with innovative technology.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial 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
6Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20034 contacts →

Partial evidence

“Established in 2001, Zecurion has emerged as a worldwide authority in IT security solutions, safeguarding the interests of more than corporate clients spanning across 70+…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNew York, United StatesHQ checked Sep 28, 202651-20028 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“TAG serves the cybersecurity community, primarily with enterprise, vendors, and venture capital.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-1021 contacts →

Indirect evidence

“A community for cybersecurity marketers to collaborate, help each other, and grow our careers.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20021 contacts →

Indirect evidence

“Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-1020 contacts →

Indirect evidence

“Creative agency helping cybersecurity companies build memorable brands and product experiences.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial 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
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

“Cybersecurity is in our DNA.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, United StatesHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“Octillo is one of the few law firms in the country focused exclusively on data security and privacy, incident response, and litigation.”

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

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
16Partial 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
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-508 contacts →

Indirect 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
18Indirect 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
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-2008 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
20Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“MITG exists because most businesses don't need another security vendor.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-505 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-105 contacts →

Strong evidence

“Kopidion consists of highly qualified cyber operations and information security professionals.”

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

Indirect evidence

“Nathanial Rand, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“Most companies attend events and "hope for the best." At Bizrock, we turn events into high-stakes, high-reward growth experiments.”

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 110 information security marketing firms based in New York, United States

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Information security marketing firms based in New York, United States at a glance

As of Sep 28, 2026
34.6%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
62
11-50
30
51-200
13
201-500
3
501-1,000
1
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 110 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 information security marketing firms, 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 “information security marketing firms”. 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 information security marketing firms), 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 information security marketing firms, 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, 362 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 information security marketing firms, 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 information security marketing firms are there based in New York, United States?

RevenueBase identified 110 information security marketing firms 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?

Stroz Friedberg, A Levelblue Company, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most information security marketing firms?

New York leads the United States with 110 headquartered companies, followed by Austin (81) and Atlanta (78).

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 362 verified decision-maker contacts tracked across these 110 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.