Company lists · Data refreshed September 2026

Top 25 Cybersecurity audit companies based in New York, United States

Name: Cybersecurity audit companies 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 10, 2026 73 companies tracked

RevenueBase identified 73 cybersecurity audit companies headquartered in New York, United States as of September 2026 and tracks 1,317 professional contacts across them, including 283 with verified work emails and 405 with mobile numbers. New York is the largest hub.

This list covers cybersecurity audit 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 10, 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 10, 2026 86% judged on-target in blind review

73Companies

1,317Contacts tracked

283Verified emails

405Mobile numbers

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The 25 largest cybersecurity audit companies based in New York, United States

Ranked by team size

Top 25 of 73 cybersecurity audit companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity audit 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Securityscorecard	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	501-1,000	535 contacts →
	Indirect evidence “Funded by world-class investors, including Evolution Equity Partners, Silver Lake Partners, Sequoia Capital, GV, Riverwood Capital, and others, SecurityScorecard is the global…” Source: RevenueBase Database · checked Sep 10, 2026
2	Thoropass	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	201-500	243 contacts →
	Partial evidence “Thoropass is the only end-to-end cybersecurity auditor.” Source: RevenueBase Database · checked Sep 10, 2026
3	Nopalcyber	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	51-200	76 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 10, 2026
4	Eretmis INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	n/a	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 10, 2026
5	OSEC	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	38 contacts →
	Indirect 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 10, 2026
6	Ciphertechs A Cybermaxx Company	Partial evidence	New York, United StatesHQ checked Sep 10, 2026	51-200	28 contacts →
	Partial evidence “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: RevenueBase Database · checked Sep 10, 2026
7	Gotham Digital Science, A Stroz Friedberg Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	51-200	21 contacts →
	Indirect evidence “Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Source: RevenueBase Database · checked Sep 10, 2026
8	ACA Aponix	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	201-500	19 contacts →
	Partial 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 10, 2026
9	Silent Breach	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	12 contacts →
	Indirect evidence “At Silent Breach, we think like a hacker and defend like a pro.” Source: RevenueBase Database · checked Sep 10, 2026
10	RGS Global Advisors	Strong evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	11 contacts →
	Strong evidence “Top notch services at reasonable cost RGS Global Advisors has a wealth of internal audit, FDICIA and SOX testing, remediation, consultancy, BSA/AML/OFAC, IT/IS/Cybersecurity &…” Source: RevenueBase Database · checked Sep 10, 2026
11	Compciti Business Solutions, INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	11 contacts →
	Indirect evidence “CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Source: RevenueBase Database · checked Sep 10, 2026
12	White Hack Labs	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	9 contacts →
	Indirect evidence “Our primary business is the digital security of your assets.” Source: RevenueBase Database · checked Sep 10, 2026
13	Resonance Security	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	9 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 10, 2026
14	Sayfer Cyber Security	Indirect evidence	New York, United StatesHQ checked Sep 10, 2026	11-50	8 contacts →
	Indirect evidence “Sayfer, where people and technology meet to overcome web3 and blockchain challenges.” Source: RevenueBase Database · checked Sep 10, 2026
15	Compuwork	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	5 contacts →
	Indirect evidence “Most organizations face growing compliance demands but lack an IT partner who truly understands them.” Source: RevenueBase Database · checked Sep 10, 2026
16	Citanex	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	11-50	4 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 10, 2026
17	Velstadt Cybersecurity	Partial evidence	New York, United StatesHQ checked Sep 10, 2026	11-50	4 contacts →
	Partial evidence “Velstadt is a cybersecurity provider focused on delivering both offensive and defensive security services.” Source: RevenueBase Database · checked Sep 10, 2026
18	Bytium	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	4 contacts →
	Partial evidence “Bytium LLC is a U.S-registered cybersecurity and IT solutions firm dedicated to helping organizations protect their information assets and maintain operational resilience.” Source: RevenueBase Database · checked Sep 10, 2026
19	Secreliant	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	3 contacts →
	Partial evidence “SecReliant is managed by a seasoned team – with backgrounds in cybersecurity, technology, blockchain enabled technology, and service in the armed forces – that is passionate…” Source: RevenueBase Database · checked Sep 10, 2026
20	Brotherskeep	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	3 contacts →
	Partial evidence “BrothersKeep is a boutique cybersecurity services firm with offices in New York and Israel, providing a full portfolio of enterprise-class cybersecurity solutions to businesses of…” Source: RevenueBase Database · checked Sep 10, 2026
21	Aniza Corp	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	51-200	1 contacts →
	Indirect evidence “Technology Transformation Public / Private / Hybrid Cloud Architecture IAM / CIAM Cyber Maturity Assessment Cyber Strategy and Target Operating Model Development Security Risk…” Source: RevenueBase Database · checked Sep 10, 2026
22	Btblock, A Fyeo Company	Partial evidence	New York, United StatesHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “BTblock is a technology and cybersecurity consultancy specialized in providing end-to-end security and auditing solutions, with a focus on servicing clients in the blockchain &…” Source: RevenueBase Database · checked Sep 10, 2026
23	Cyvergence	Partial evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “At Cyvergence, our mission is to empower organizations by delivering state of the art cybersecurity products and services that fortify your digital ecosystem.” Source: RevenueBase Database · checked Sep 10, 2026
24	Delon Chateau, LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	1 contacts →
	Indirect evidence “Founded in 2012, DELON CHATEAU, LLC helps businesses across finance, healthcare, legal, and entertainment industries navigate the complexity of IT, systems architecture, and…” Source: RevenueBase Database · checked Sep 10, 2026
25	Access IT Group INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 10, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 10, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity audit companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity audit companies.
Partial evidence: Its own public description names part of cybersecurity audit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity audit companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 73 cybersecurity audit companies based in New York, United States

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Cybersecurity audit companies based in New York, United States at a glance

As of Sep 10, 2026

21.5%Verified-email coverage

30.8%Mobile-number coverage

18.0Average contacts per company

1-10Median size (employees)

113.7%Largest-city concentration · New York

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 13.0d

2600–30

2231–60

061–90

090–180

1180+

Company record updated

Median 52.0d

00–30

77731–60

36661–90

9990–180

75180+

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 audit 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 “cybersecurity audit 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 cybersecurity audit 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 cybersecurity audit 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, 283 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 10, 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 audit companies by metro in the United States

Cybersecurity audit companies in New York83
Cybersecurity audit companies in Atlanta62
Cybersecurity audit companies in Houston58
Cybersecurity audit companies in Washington57
Cybersecurity audit companies in Chicago55
Cybersecurity audit companies in Miami55
Cybersecurity audit companies in Tampa54

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 audit 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 cybersecurity audit companies are there based in New York, United States?

RevenueBase identified 73 cybersecurity audit 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?

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

Which city has the most cybersecurity audit companies?

New York leads with 83 headquartered companies, followed by Atlanta (62) and Houston (58).

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 283 verified decision-maker contacts tracked across these 73 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 10, 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.