Company lists · Data refreshed September 2026

Top 24 Security consulting services based in New York, United States

Name: Security consulting services 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 21, 2026 196 companies tracked

RevenueBase identified 196 company matches for security consulting services associated with New York, United States as of September 2026 and tracks 3,641 professional contacts across them, including 1,275 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for security consulting services associated with New York, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

196Companies

3,641Contacts tracked

1,275Verified emails

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The 24 largest security consulting services based in New York, United States

Ranked by team size

Top 24 of 196 company matches for security consulting services based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	MSA Security	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	571 contacts →
	Exact match “Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	K2 Integrity	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	311 contacts →
	Exact match “K2 Integrity is a global risk management company dedicated to helping organizations across both the public and private sectors protect their assets, reputation, and operations and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Guidepost Solutions	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	268 contacts →
	Exact match “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Kraft & Kennedy, INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	219 contacts →
	Exact match “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	T&m Usa, LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	216 contacts →
	Exact match “T&M USA provides seamlessly integrated executive protection, investigative and consulting services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Harbor IT	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	163 contacts →
	Exact match “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Silverseal	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	159 contacts →
	Exact match “Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Torchstone Global	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	77 contacts →
	Exact match “TorchStone is a discreet risk mitigation and security advisory firm serving the unique needs of the world’s leading organizations and individuals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Nopalcyber	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	76 contacts →
	Exact match “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Global OPS	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	70 contacts →
	Exact match “At GLOBAL OPS, we specialize in creating and implementing tailored security solutions that cater to the unique needs of our diverse clientele.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Hubspire	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	69 contacts →
	Exact match “HubSpire is an innovative team of management consultants, app developers, designers and digital transformation experts.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Eretmis INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	n/a	66 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Insite Risk Management	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	63 contacts →
	Exact match “Effective risk management requires a holistic process.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Port53	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	55 contacts →
	Exact match “Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Salus GRC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	48 contacts →
	Exact match “At Salus GRC, we offer more than just compliance and cybersecurity services – we provide a personalized commitment to your success.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	OSEC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	38 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Vista Infosec	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	32 contacts →
	Exact match “VISTA InfoSec is a vendor-neutral company providing Risk Compliance and Information Security Advisory Services to organizations for the past 20 years (established in 2004).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Ciphertechs A Cybermaxx Company	Exact match	New York, United StatesHQ recorded Sep 21, 2026	51-200	28 contacts →
	Exact match “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	TAG Infosphere	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	22 contacts →
	Exact match “TAG serves the cybersecurity community, primarily with enterprise, vendors, and venture capital.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Gotham Digital Science, A Stroz Friedberg Company	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	21 contacts →
	Exact match “Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Global Data Risk LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	20 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	ACA Aponix	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	19 contacts →
	Exact match “ACA Aponix, a division of ACA Group, provides cybersecurity and technology risk assessments, vendor and M&A diligence services, network testing, and advisory services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Ddcues LLC	Exact match	New York, United StatesHQ recorded Sep 21, 2026	51-200	18 contacts →
	Exact match “DDCues is a national risk management firm committed to protecting people, securing infrastructure, and defending the Nation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Narrowgate Security Agency	Exact match	New York, United StatesHQ recorded Sep 21, 2026	1,001-5,000	18 contacts →
	Exact match “We provide analysis and design of Physical Security Systems (PSS) of high risk facilities and critical infrastructure.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “security consulting services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 196 security consulting services based in New York, United States

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Security consulting services based in New York, United States at a glance

As of Sep 21, 2026

35.0%Verified-email coverage

18.6Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 196 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with New York, United States whose business descriptions match “security consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,275 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Security consulting services by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security consulting services are there based in New York, United States?

RevenueBase identified 196 company matches for security consulting services associated with New York, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

MSA Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most security consulting services?

New York leads the United States with 196 company records, followed by Washington (157) and Houston (127).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,275 professional contacts with verified work emails tracked across these 196 companies; direct dials are available where recorded.

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 SmartSearch, 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.