Company lists · Data refreshed October 2026
Top 24 Security consulting companies based in New York, United States
RevenueBase identified 143 company matches for security consulting companies associated with New York, United States as of October 2026 and tracks 4,290 professional contacts across them, including 913 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 companies 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 October 1, 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.
The 24 largest security consulting companies based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,375 contacts → | ||||
Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 2 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 3 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 4 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 5 | 216 contacts → | ||||
Exact match “T&M USA provides seamlessly integrated executive protection, investigative and consulting services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 6 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 7 | 120 contacts → | ||||
Exact match “Excel Security Corp.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 8 | 82 contacts → | ||||
Exact match “For over 30 years GMSC has been securing high profile buildings and offices across New York and Chicago.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 9 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 10 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 11 | 63 contacts → | ||||
Exact match “Effective risk management requires a holistic process.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 12 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 13 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 14 | 28 contacts → | ||||
Exact match “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 15 | 21 contacts → | ||||
Exact match “Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 16 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 17 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 18 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 19 | 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 · Oct 1, 2026 · View company records in RevenueBase | |||||
| 20 | 17 contacts → | ||||
Exact match “Include Security is a premiere security consulting company executing thousands of assessments of all types of technology for hundreds of clients since 2011.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 21 | 14 contacts → | ||||
Exact match “SphereNY is made up of seasoned professionals who have a passion for the Construction Industry and Security Awareness programs for all sectors.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 22 | 14 contacts → | ||||
Exact match “IA-TechCenter is a leading IT- Consulting firm composed of experts specializing in Program, and Project Management Services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 23 | 11 contacts → | ||||
Exact match “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 &…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 24 | 10 contacts → | ||||
Exact match “ICMG delivers strategic security and risk management solutions grounded in cross-sector collaboration and a deep understanding of global security challenges.” Recorded in the RevenueBase company graph · Oct 1, 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 companies”. 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 143 security consulting companies based in New York, United States
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Security consulting companies based in New York, United States at a glance
As of Oct 1, 2026Companies by employee count
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 143 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 companies” 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 913 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 October 1, 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 companies by metro in the United States
- Security consulting companies in Houston93
- Security consulting companies in Atlanta89
- Security consulting companies in Washington88
- Security consulting companies in Austin70
- Security consulting companies in Chicago68
- Security consulting companies in Los Angeles68
- Security consulting companies in Dallas67
- Security consulting companies in Miami65
- Security consulting companies in San Francisco54
- Security consulting companies in Tampa53
- Security consulting companies in Denver43
- Security consulting companies in Arlington41
- Security consulting companies in Charlotte40
- Security consulting companies in Seattle38
- Security consulting companies in San Diego36
- Security consulting companies in Alexandria35
- Security consulting companies in Boston34
- Security consulting companies in San Antonio34
- Security consulting companies in Phoenix33
- Security consulting companies in Minneapolis30
- Security consulting companies in Raleigh29
- Security consulting companies in Orlando28
- Security consulting companies in Las Vegas27
- Security consulting companies in Reston27
- Security consulting companies in Columbia26
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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security consulting companies are there based in New York, United States?
RevenueBase identified 143 company matches for security consulting companies associated with New York, United States as of October 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?
Guardsmark 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 companies?
New York leads the United States with 143 company records, followed by Houston (93) and Atlanta (89).
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 913 professional contacts with verified work emails tracked across these 143 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 October 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 143 security consulting companies based in New York, United States. Start with a free account, no credit card.
Download this list →Related lists
Security consulting companies by geography
- Security consulting companies based in the United States
- Security consulting companies based in the United Kingdom
- Security consulting companies based in Brazil
- Security consulting companies based in France
- Security consulting companies based in Germany
- Security consulting companies based in Canada
- Security consulting companies based in Australia
- Security consulting companies based in the Netherlands
- Security consulting companies based in Mexico
- Security consulting companies based in Spain
- Security consulting companies based in Italy
- Security consulting companies based in South Africa
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security consulting companies based in the United States
- Security consulting companies based in the United Kingdom
- Security consulting companies based in Brazil
- Security consulting companies based in France
- Security consulting companies based in Germany
- Security consulting companies based in Canada
Company intelligence · public preview
Top 24 security consulting companies based in New York, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 143 matching company records for security consulting companies based in New York, United States, with 4,290 tracked contacts and 913 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 security consulting companies based in New York, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Guardsmarkguardsmark.comHQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 1,375 contacts → |
“Guardsmark, LLC provides security services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  MSA Securityaus.comHQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 571 contacts → |
“Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  K2 Integrityk2integrity.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 311 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Guidepost Solutionsguidepostsolutions.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 268 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  T&m Usa, LLCtmusallc.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 216 contacts → |
“T&M USA provides seamlessly integrated executive protection, investigative and consulting services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Silversealsilverseal.netHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 159 contacts → |
“Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Excel Security Corporationexcelsecurity.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 120 contacts → |
“Excel Security Corp.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Gmsc Securitygmscsecurity.comHQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 82 contacts → |
“For over 30 years GMSC has been securing high profile buildings and offices across New York and Chicago.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Torchstone Globaltorchstoneglobal.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 77 contacts → |
“TorchStone is a discreet risk mitigation and security advisory firm serving the unique needs of the world’s leading organizations and individuals.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Global OPSglobalops.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 70 contacts → |
“At GLOBAL OPS, we specialize in creating and implementing tailored security solutions that cater to the unique needs of our diverse clientele.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Insite Risk Managementinsiteriskmanagement.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 63 contacts → |
“Effective risk management requires a holistic process.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Port53port53.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 55 contacts → |
“Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  OSECosec.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 38 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ciphertechs A Cybermaxx Companycybermaxx.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 28 contacts → |
“CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Gotham Digital Science, A Stroz Friedberg Companygdssecurity.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 21 contacts → |
“Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Global Data Risk LLCglobaldatarisk.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 20 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  ACA Aponixacaglobal.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 19 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ddcues LLCddcues.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 18 contacts → |
“DDCues is a national risk management firm committed to protecting people, securing infrastructure, and defending the Nation.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Narrowgate Security Agencynarrowgate.comHQ: New York, United StatesReported employees: 1,001-5,000 | New York, United States | 1,001-5,000 | Exact match | 18 contacts → |
“We provide analysis and design of Physical Security Systems (PSS) of high risk facilities and critical infrastructure.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Include Securityincludesecurity.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 17 contacts → |
“Include Security is a premiere security consulting company executing thousands of assessments of all types of technology for hundreds of clients since 2011.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Spherenysphereny.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 14 contacts → |
“SphereNY is made up of seasoned professionals who have a passion for the Construction Industry and Security Awareness programs for all sectors.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ia-Tech Centeria-techcenter.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 14 contacts → |
“IA-TechCenter is a leading IT- Consulting firm composed of experts specializing in Program, and Project Management Services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  RGS Global Advisorsrgsglobaladvisors.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“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 &…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 10 contacts → |
“ICMG delivers strategic security and risk management solutions grounded in cross-sector collaboration and a deep understanding of global security challenges.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 143 company matches
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Security consulting companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
143 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 143 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security consulting companies by metro in the United States
- Security consulting companies in Houston93
- Security consulting companies in Atlanta89
- Security consulting companies in Washington88
- Security consulting companies in Austin70
- Security consulting companies in Chicago68
- Security consulting companies in Los Angeles68
- Security consulting companies in Dallas67
- Security consulting companies in Miami65
- Security consulting companies in San Francisco54
- Security consulting companies in Tampa53
- Security consulting companies in Denver43
- Security consulting companies in Arlington41
- Security consulting companies in Charlotte40
- Security consulting companies in Seattle38
- Security consulting companies in San Diego36
- Security consulting companies in Alexandria35
- Security consulting companies in Boston34
- Security consulting companies in San Antonio34
- Security consulting companies in Phoenix33
- Security consulting companies in Minneapolis30
- Security consulting companies in Raleigh29
- Security consulting companies in Orlando28
- Security consulting companies in Las Vegas27
- Security consulting companies in Reston27
- Security consulting companies in Columbia26
Questions about this company list
What does Exact match mean for security consulting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security consulting companies did RevenueBase find based in New York, United States?
The saved snapshot records 143 matching company records, 4,290 tracked contacts and 913 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security consulting companies by geography
- Security consulting companies based in the United States
- Security consulting companies based in the United Kingdom
- Security consulting companies based in Brazil
- Security consulting companies based in France
- Security consulting companies based in Germany
- Security consulting companies based in Canada
- Security consulting companies based in Australia
- Security consulting companies based in the Netherlands
- Security consulting companies based in Mexico
- Security consulting companies based in Spain
- Security consulting companies based in Italy
- Security consulting companies based in South Africa
Cite this list
RevenueBase Data Team. Top 24 security consulting companies based in New York, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/security-consulting-companies/united-states/new-york.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security consulting companies based in the United States
- Security consulting companies based in the United Kingdom
- Security consulting companies based in Brazil
- Security consulting companies based in France
- Security consulting companies based in Germany
- Security consulting companies based in Canada
Company intelligence · public preview
Top 24 security consulting companies based in New York, United States
RevenueBase records 143 matching company records for security consulting companies based in New York, United States, with 4,290 tracked contacts and 913 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 security consulting companies based in New York, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Guardsmarkguardsmark.com HQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 1,375 contacts → |
“Guardsmark, LLC provides security services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | MSA Securityaus.com HQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 571 contacts → |
“Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | K2 Integrityk2integrity.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 311 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Guidepost Solutionsguidepostsolutions.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 268 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | T&m Usa, LLCtmusallc.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 216 contacts → |
“T&M USA provides seamlessly integrated executive protection, investigative and consulting services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Silversealsilverseal.net HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 159 contacts → |
“Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Excel Security Corporationexcelsecurity.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 120 contacts → |
“Excel Security Corp.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gmsc Securitygmscsecurity.com HQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 82 contacts → |
“For over 30 years GMSC has been securing high profile buildings and offices across New York and Chicago.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Torchstone Globaltorchstoneglobal.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 77 contacts → |
“TorchStone is a discreet risk mitigation and security advisory firm serving the unique needs of the world’s leading organizations and individuals.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Global OPSglobalops.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 70 contacts → |
“At GLOBAL OPS, we specialize in creating and implementing tailored security solutions that cater to the unique needs of our diverse clientele.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Insite Risk Managementinsiteriskmanagement.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 63 contacts → |
“Effective risk management requires a holistic process.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Port53port53.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 55 contacts → |
“Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | OSECosec.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 38 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ciphertechs A Cybermaxx Companycybermaxx.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 28 contacts → |
“CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gotham Digital Science, A Stroz Friedberg Companygdssecurity.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 21 contacts → |
“Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Global Data Risk LLCglobaldatarisk.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 20 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | ACA Aponixacaglobal.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 19 contacts → |
“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 description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ddcues LLCddcues.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 18 contacts → |
“DDCues is a national risk management firm committed to protecting people, securing infrastructure, and defending the Nation.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Narrowgate Security Agencynarrowgate.com HQ: New York, United StatesReported employees: 1,001-5,000 | New York, United States | 1,001-5,000 | Exact match | 18 contacts → |
“We provide analysis and design of Physical Security Systems (PSS) of high risk facilities and critical infrastructure.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Include Securityincludesecurity.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 17 contacts → |
“Include Security is a premiere security consulting company executing thousands of assessments of all types of technology for hundreds of clients since 2011.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Spherenysphereny.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 14 contacts → |
“SphereNY is made up of seasoned professionals who have a passion for the Construction Industry and Security Awareness programs for all sectors.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ia-Tech Centeria-techcenter.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 14 contacts → |
“IA-TechCenter is a leading IT- Consulting firm composed of experts specializing in Program, and Project Management Services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | RGS Global Advisorsrgsglobaladvisors.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“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 &…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 10 contacts → |
“ICMG delivers strategic security and risk management solutions grounded in cross-sector collaboration and a deep understanding of global security challenges.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 143 company matches
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Security consulting companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
143 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 143 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security consulting companies by metro in the United States
- Security consulting companies in Houston93
- Security consulting companies in Atlanta89
- Security consulting companies in Washington88
- Security consulting companies in Austin70
- Security consulting companies in Chicago68
- Security consulting companies in Los Angeles68
- Security consulting companies in Dallas67
- Security consulting companies in Miami65
- Security consulting companies in San Francisco54
- Security consulting companies in Tampa53
- Security consulting companies in Denver43
- Security consulting companies in Arlington41
- Security consulting companies in Charlotte40
- Security consulting companies in Seattle38
- Security consulting companies in San Diego36
- Security consulting companies in Alexandria35
- Security consulting companies in Boston34
- Security consulting companies in San Antonio34
- Security consulting companies in Phoenix33
- Security consulting companies in Minneapolis30
- Security consulting companies in Raleigh29
- Security consulting companies in Orlando28
- Security consulting companies in Las Vegas27
- Security consulting companies in Reston27
- Security consulting companies in Columbia26
Questions about this company list
What does Exact match mean for security consulting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security consulting companies did RevenueBase find based in New York, United States?
The saved snapshot records 143 matching company records, 4,290 tracked contacts and 913 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security consulting companies by geography
- Security consulting companies based in the United States
- Security consulting companies based in the United Kingdom
- Security consulting companies based in Brazil
- Security consulting companies based in France
- Security consulting companies based in Germany
- Security consulting companies based in Canada
- Security consulting companies based in Australia
- Security consulting companies based in the Netherlands
- Security consulting companies based in Mexico
- Security consulting companies based in Spain
- Security consulting companies based in Italy
- Security consulting companies based in South Africa
Cite this list
RevenueBase Data Team. Top 24 security consulting companies based in New York, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/security-consulting-companies/united-states/new-york.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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