Company lists · Data refreshed September 2026

Top 23 Cybersecurity consultant firms based in New York, United States

RevenueBase identified 236 cybersecurity consultant firms headquartered in New York, United States as of September 2026 and tracks 3,054 professional contacts across them, including 1,222 with verified work emails. New York is the largest hub.

This list covers cybersecurity consultant 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 21, 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 21, 2026 86% judged on-target in blind review
236Companies
3,054Contacts tracked
1,222Verified emails
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The 23 largest cybersecurity consultant firms based in New York, United States

Ranked by team size
Top 23 of 236 cybersecurity consultant firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consultant 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
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500268 contacts →

Indirect evidence

“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-200219 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026501-1,000206 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500200 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 21, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 2026201-500163 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20094 contacts →

Indirect evidence

“Since 2012, Trail of Bits has been the premier place for security experts to boldly advance security and address technology’s newest and most challenging risks.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20077 contacts →

Indirect evidence

“TorchStone is a discreet risk mitigation and security advisory firm serving the unique needs of the world’s leading organizations and individuals.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20076 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 21, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5069 contacts →

Partial evidence

“HubSpire is an innovative team of management consultants, app developers, designers and digital transformation experts.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026n/a66 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20065 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20058 contacts →

Partial 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 21, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 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 21, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20055 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 21, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20048 contacts →

Partial evidence

“At Salus GRC, we offer more than just compliance and cybersecurity services – we provide a personalized commitment to your success.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5038 contacts →

Indirect evidence

“Fairdinkum is a leading full-service IT consulting firm located in mid-town.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5038 contacts →

Indirect evidence

“Founded in 2011, Proven Data has consistently evolved to meet the growing needs of our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 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 21, 2026
19Partial evidenceNew York, United StatesHQ checked Sep 21, 202651-20028 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5022 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20021 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20020 contacts →

Indirect evidence

“Founded in 2022 and headquartered in the historic financial core of New York, Global Data Risk LLC (GDR) is an independent investigative consulting firm focused on risk in the…”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026

Showing 23 of 236 cybersecurity consultant firms based in New York, United States

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Cybersecurity consultant firms based in New York, United States at a glance

As of Sep 21, 2026
40.0%Verified-email coverage
12.9Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
120
11-50
73
51-200
30
201-500
8
501-1,000
3
1,001-5,000
2

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 236 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 cybersecurity consultant 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 “cybersecurity consultant 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 cybersecurity consultant 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 cybersecurity consultant 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, 1,222 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 21, 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.

Cybersecurity consultant firms 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 cybersecurity consultant 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 cybersecurity consultant firms are there based in New York, United States?

RevenueBase identified 236 cybersecurity consultant 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?

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

Which city has the most cybersecurity consultant firms?

New York leads with 236 headquartered companies, followed by Washington (164) and Atlanta (150).

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 1,222 verified decision-maker contacts tracked across these 236 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 21, 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.