Company lists · Data refreshed September 2026

Top 24 Security compliance consulting companies based in New York, United States

Name: Security compliance consulting 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 6, 2026 75 companies tracked

RevenueBase identified 75 security compliance consulting companies headquartered in New York, United States as of September 2026 and tracks 913 professional contacts across them, including 437 with verified work emails. New York is the largest hub.

This list covers security compliance consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

75Companies

913Contacts tracked

437Verified emails

Explore all 75 companies → Free signup · no credit card · 500 free credits

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

Ranked by team size

Top 24 of 75 security compliance consulting companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names security compliance consulting companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Guidepost SolutionsIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	201-500	268
	“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: company website · checked Sep 6, 2026
2	NopalcyberPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	76
	“NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: company website · checked Sep 6, 2026
3	Eretmis INCIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	n/a	66
	Source: company website · checked Sep 6, 2026
4	Compliance Risk Concepts CRCIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	60
	“To meet rigorous regulatory expectations and requirements, it is imperative that organizations have access to “best in class” talent that has extensive knowledge of the businesses…” Source: company website · checked Sep 6, 2026
5	RhymetecIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	56
	“Rhymetec delivers premium cybersecurity and data privacy solutions for modern SaaS businesses, combining human expertise with innovative technology.” Source: company website · checked Sep 6, 2026
6	Agency CybersecurityStrong evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	49
	“Agency replaces traditional security and compliance headcount with AI without replacing your existing tools.” Source: company website · checked Sep 6, 2026
7	Salus GRCPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	48
	“At Salus GRC, we offer more than just compliance and cybersecurity services – we provide a personalized commitment to your success.” Source: company website · checked Sep 6, 2026
8	OSECPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	38
	“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: company website · checked Sep 6, 2026
9	Vista InfosecStrong evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	32
	“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).” Source: company website · checked Sep 6, 2026
10	Gotham Digital Science, A Stroz Friedberg CompanyIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	21
	“Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Source: company website · checked Sep 6, 2026
11	RGS Global AdvisorsIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	11
	“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: company website · checked Sep 6, 2026
12	Compciti Business Solutions, INCStrong evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	11
	“CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Source: company website · checked Sep 6, 2026
13	Quadrant Regulatory GroupStrong evidence	New York, NY, United StatesHQ checked Sep 6, 2026	1-10	7
	“Quadrant Regulatory Group provides services that support compliance with SEC, FINRA, MSRB, and state securities law.” Source: company website · checked Sep 6, 2026
14	CompuworkPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	5
	“Most organizations face growing compliance demands but lack an IT partner who truly understands them.” Source: company website · checked Sep 6, 2026
15	Maverick Consulting CorpPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	5
	“Maverick Consulting is a premier Risk Consulting firm.” Source: company website · checked Sep 6, 2026
16	ACA AponixIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	201-500	4
	“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: company website · checked Sep 6, 2026
17	Velstadt CybersecurityPartial evidence	New York, United StatesHQ checked Sep 6, 2026	11-50	4
	“Velstadt is a cybersecurity provider focused on delivering both offensive and defensive security services.” Source: company website · checked Sep 6, 2026
18	Techumen, INCPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	3
	“At Techumen, we simplify health care security.” Source: company website · checked Sep 6, 2026
19	BrotherskeepIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	1-10	3
	“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: company website · checked Sep 6, 2026
20	1-CompliancePartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	1-10	3
	“At 1-Compliance, we specialize in providing tailored compliance programs to businesses without established compliance measures in place.” Source: company website · checked Sep 6, 2026
21	D-Riskcyber LLCPartial evidence	New York, United StatesHQ checked Sep 6, 2026	51-200	2
	“d-RiskCyber is a global consulting firm headquartered in New York City and specializing in cybersecurity-by-design and data-protection-by-design solutions.” Source: company website · checked Sep 6, 2026
22	ESM Global ConsultingStrong evidence	New York, NY, United StatesHQ checked Sep 6, 2026	11-50	2
	“Serving all fifty states, ESM Global Consulting’s Mission is to redefine the IT and security consulting industry by offering an uncommon blend of technology and business resources…” Source: company website · checked Sep 6, 2026
23	Access IT Group INCIndirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	1-10	1
	Source: company website · checked Sep 6, 2026
24	Acrion GroupPartial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	1-10	1
	“We are US based privately held security consultancy firm.” Source: company website · checked Sep 6, 2026

Showing 24 of 75 security compliance consulting companies based in New York, United States

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

As of Sep 6, 2026

1-10Median size (employees)

New YorkLargest hub · 75 HQs

Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for New York, over 75 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 security compliance consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “security compliance consulting companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among security compliance consulting 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 an evidence 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, 437 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 6, 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.

Security compliance consulting companies by metro in the United States

Frequently asked

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

RevenueBase identified 75 security compliance consulting 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?

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

Which city has the most security compliance consulting companies?

New York leads with 75 headquartered companies, followed by Atlanta (68) and Houston (67).

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 437 verified decision-maker contacts tracked across these 75 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 6, 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.