Company lists · Data refreshed September 2026
Top 25 Managed security services companies based in New York, United States
RevenueBase identified 103 company matches for managed security services companies associated with New York, United States as of September 2026 and tracks 3,324 professional contacts across them, including 1,251 with verified work emails. Across the United States, New York is the largest hub for this category.
This list covers company matches for managed security services 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 September 14, 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 25 largest managed security services companies based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 683 contacts → | ||||
Exact match “BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 2 | 206 contacts → | ||||
Exact match “Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 3 | 206 contacts → | ||||
Exact match “Stroz Friedberg is now LevelBlue, the world's largest pure-play Managed Security Services Provider (MSSP).” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 4 | 200 contacts → | ||||
Exact match “Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 5 | 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 14, 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 · Sep 14, 2026 · View company records in RevenueBase | |||||
| 7 | 120 contacts → | ||||
Exact match “Excel Security Corp.” Recorded in the RevenueBase company graph · Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase | |||||
| 9 | 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 14, 2026 · View company records in RevenueBase | |||||
| 10 | 60 contacts → | ||||
Exact match “A&H Security Services, is a certified NYC MBE security services provider who makes a difference in our community.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 11 | 57 contacts → | ||||
Exact match “Big Idea Technology manages IT for small businesses headquartered in the New York City metropolitan area.” Recorded in the RevenueBase company graph · Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase | |||||
| 13 | 28 contacts → | ||||
Exact match “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match “Riverstrong - your trusted partner in IT and cybersecurity managed services.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 15 | 24 contacts → | ||||
Exact match “We make it easy to deploy, configure, and manage key security tools like cross platform device management (MDM), endpoint detection and response (EDR), and more.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “Cohere offers managed security and IT infrastructure services all under one roof.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 17 | 17 contacts → | ||||
Exact match “IntSights delivers best-in-class, cloud-native external threat detection to further extend Rapid7’s industry-leading security operations platform, providing customers with…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 18 | 16 contacts → | ||||
Exact match “Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 19 | 13 contacts → | ||||
Exact match “At SightWatch Security, we deliver proactive and trusted security solutions-from perimeter assessments to camera installation and real-time 24/7 monitoring.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 21 | 12 contacts → | ||||
Exact match “We’re the nemesis of evil hackers attempting to take control of your system so they can extort money.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Analytica42 isn’t just a service provider; we’re a trusted partner in your security operations.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “Sorbis is a next-generation Managed Service Provider (MSP) helping hospitality and professional service firms modernize their IT, reduce costs, and stay secure.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match “At BastionX, we revolutionize how businesses harness technology.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 25 | 9 contacts → | ||||
Exact match “EMC IT Solutions is a Managed IT Services provider based in New York City, delivering secure, reliable, and scalable technology solutions to businesses nationwide.” Recorded in the RevenueBase company graph · Sep 14, 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 “managed security services 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 25 of 103 managed security services companies based in New York, United States
See the full list, filter by size, metro and specialty, and access 1,251 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Managed security services companies based in New York, United States at a glance
As of Sep 14, 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 103 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 “managed security services 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 1,251 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 14, 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.
Managed security services companies by metro in the United States
- Managed security services companies in Miami81
- Managed security services companies in Houston80
- Managed security services companies in Dallas63
- Managed security services companies in Austin61
- Managed security services companies in Chicago56
- Managed security services companies in Atlanta51
- Managed security services companies in Los Angeles49
- Managed security services companies in San Francisco46
- Managed security services companies in Tampa44
- Managed security services companies in Washington42
- Managed security services companies in Charlotte38
- Managed security services companies in Denver35
- Managed security services companies in San Diego34
- Managed security services companies in Las Vegas32
- Managed security services companies in Phoenix31
- Managed security services companies in Irvine29
- Managed security services companies in Columbia28
- Managed security services companies in Boston26
- Managed security services companies in Wilmington26
- Managed security services companies in Arlington25
- Managed security services companies in San Jose25
- Managed security services companies in Scottsdale25
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 “managed security services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many managed security services companies are there based in New York, United States?
RevenueBase identified 103 company matches for managed security services companies 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?
Bluevoyant 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 managed security services companies?
New York leads the United States with 103 company records, followed by Miami (81) and Houston (80).
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 1,251 professional contacts with verified work emails tracked across these 103 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 103 managed security services companies based in New York, United States. Start with a free account, no credit card.
Download this list →Related lists
Managed security services companies by geography
- Managed security services companies based in the United States
- Managed security services companies based in the United Kingdom
- Managed security services companies based in Brazil
- Managed security services companies based in Canada
- Managed security services companies based in Australia
- Managed security services companies based in France
- Managed security services companies based in Germany
- Managed security services companies based in Italy
- Managed security services companies based in South Africa
- Managed security services companies based in Spain
- Managed security services companies based in the Netherlands
- Managed security services companies based in Mexico
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
- Managed security services companies based in the United States
- Managed security services companies based in the United Kingdom
- Managed security services companies based in Brazil
- Managed security services companies based in Canada
- Managed security services companies based in Australia
- Managed security services companies based in France
Company intelligence · public preview
Top 25 managed security services 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 103 matching company records for managed security services companies based in New York, United States, with 3,324 tracked contacts and 1,251 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 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 25 managed security services 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 |  Bluevoyantbluevoyant.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 683 contacts → |
“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  DGA Securitydga.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 206 contacts → |
“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Stroz Friedberg, A Levelblue Companylevelblue.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 206 contacts → |
“Stroz Friedberg is now LevelBlue, the world's largest pure-play Managed Security Services Provider (MSSP).” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  AGIOagio.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 200 contacts → |
“Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Harbor ITharborit.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 163 contacts → |
“Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Recorded description excerpt · September 14, 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 · September 14, 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 · September 14, 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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nopalcybernopalcyber.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 76 contacts → |
“NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  A&h Security Servicesaandhsecurity.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 60 contacts → |
“A&H Security Services, is a certified NYC MBE security services provider who makes a difference in our community.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  BIG Idea Technologybigideatech.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 57 contacts → |
“Big Idea Technology manages IT for small businesses headquartered in the New York City metropolitan area.” Recorded description excerpt · September 14, 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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Riverstrongriverstrong.techHQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 25 contacts → |
“Riverstrong - your trusted partner in IT and cybersecurity managed services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  ZIP Securityzipsec.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 24 contacts → |
“We make it easy to deploy, configure, and manage key security tools like cross platform device management (MDM), endpoint detection and response (EDR), and more.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cohere Cyber Securecoherecybersecure.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 17 contacts → |
“Cohere offers managed security and IT infrastructure services all under one roof.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Intsights, A Rapid7 Companyintsights.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 17 contacts → |
“IntSights delivers best-in-class, cloud-native external threat detection to further extend Rapid7’s industry-leading security operations platform, providing customers with…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Unit 221bunit221b.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 16 contacts → |
“Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sight Watch Securitysightwatch.comHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 13 contacts → |
“At SightWatch Security, we deliver proactive and trusted security solutions-from perimeter assessments to camera installation and real-time 24/7 monitoring.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Xperteks Computer Consultancy, INCxperteks.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  Cyberconvoycyberconvoy.comHQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 12 contacts → |
“We’re the nemesis of evil hackers attempting to take control of your system so they can extort money.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Analytica42analytica42.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“Analytica42 isn’t just a service provider; we’re a trusted partner in your security operations.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sorbissorbis.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 9 contacts → |
“Sorbis is a next-generation Managed Service Provider (MSP) helping hospitality and professional service firms modernize their IT, reduce costs, and stay secure.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Bastionxbastionx.ioHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 9 contacts → |
“At BastionX, we revolutionize how businesses harness technology.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  EMC IT Solutionsemcitsolutions.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“EMC IT Solutions is a Managed IT Services provider based in New York City, delivering secure, reliable, and scalable technology solutions to businesses nationwide.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 103 company matches
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Managed security services companies: dataset insights
September 14, 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
103 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 103 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: September 14, 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 ↗
Managed security services companies by metro in the United States
- Managed security services companies in Miami81
- Managed security services companies in Houston80
- Managed security services companies in Dallas63
- Managed security services companies in Austin61
- Managed security services companies in Chicago56
- Managed security services companies in Atlanta51
- Managed security services companies in Los Angeles49
- Managed security services companies in San Francisco46
- Managed security services companies in Tampa44
- Managed security services companies in Washington42
- Managed security services companies in Charlotte38
- Managed security services companies in Denver35
- Managed security services companies in San Diego34
- Managed security services companies in Las Vegas32
- Managed security services companies in Phoenix31
- Managed security services companies in Irvine29
- Managed security services companies in Columbia28
- Managed security services companies in Boston26
- Managed security services companies in Wilmington26
- Managed security services companies in Arlington25
- Managed security services companies in San Jose25
- Managed security services companies in Scottsdale25
Questions about this company list
What does Exact match mean for managed security services 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 managed security services companies did RevenueBase find based in New York, United States?
The saved snapshot records 103 matching company records, 3,324 tracked contacts and 1,251 verified emails. The public preview displays 25 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: September 14, 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
Managed security services companies by geography
- Managed security services companies based in the United States
- Managed security services companies based in the United Kingdom
- Managed security services companies based in Brazil
- Managed security services companies based in Canada
- Managed security services companies based in Australia
- Managed security services companies based in France
- Managed security services companies based in Germany
- Managed security services companies based in Italy
- Managed security services companies based in South Africa
- Managed security services companies based in Spain
- Managed security services companies based in the Netherlands
- Managed security services companies based in Mexico
Cite this list
RevenueBase Data Team. Top 25 managed security services companies based in New York, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/managed-security-services-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
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- Lists A-Z
- New lists
- Managed security services companies based in the United States
- Managed security services companies based in the United Kingdom
- Managed security services companies based in Brazil
- Managed security services companies based in Canada
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Top 25 managed security services companies based in New York, United States
RevenueBase records 103 matching company records for managed security services companies based in New York, United States, with 3,324 tracked contacts and 1,251 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 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 25 managed security services 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 | Bluevoyantbluevoyant.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 683 contacts → |
“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | DGA Securitydga.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 206 contacts → |
“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Stroz Friedberg, A Levelblue Companylevelblue.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 206 contacts → |
“Stroz Friedberg is now LevelBlue, the world's largest pure-play Managed Security Services Provider (MSSP).” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | AGIOagio.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 200 contacts → |
“Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Harbor ITharborit.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 163 contacts → |
“Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Recorded description excerpt · September 14, 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 · September 14, 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 · September 14, 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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nopalcybernopalcyber.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 76 contacts → |
“NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | A&h Security Servicesaandhsecurity.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 60 contacts → |
“A&H Security Services, is a certified NYC MBE security services provider who makes a difference in our community.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | BIG Idea Technologybigideatech.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 57 contacts → |
“Big Idea Technology manages IT for small businesses headquartered in the New York City metropolitan area.” Recorded description excerpt · September 14, 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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Riverstrongriverstrong.tech HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 25 contacts → |
“Riverstrong - your trusted partner in IT and cybersecurity managed services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ZIP Securityzipsec.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 24 contacts → |
“We make it easy to deploy, configure, and manage key security tools like cross platform device management (MDM), endpoint detection and response (EDR), and more.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cohere Cyber Securecoherecybersecure.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 17 contacts → |
“Cohere offers managed security and IT infrastructure services all under one roof.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Intsights, A Rapid7 Companyintsights.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 17 contacts → |
“IntSights delivers best-in-class, cloud-native external threat detection to further extend Rapid7’s industry-leading security operations platform, providing customers with…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Unit 221bunit221b.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 16 contacts → |
“Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sight Watch Securitysightwatch.com HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 13 contacts → |
“At SightWatch Security, we deliver proactive and trusted security solutions-from perimeter assessments to camera installation and real-time 24/7 monitoring.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Xperteks Computer Consultancy, INCxperteks.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Cyberconvoycyberconvoy.com HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 12 contacts → |
“We’re the nemesis of evil hackers attempting to take control of your system so they can extort money.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Analytica42analytica42.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“Analytica42 isn’t just a service provider; we’re a trusted partner in your security operations.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sorbissorbis.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 9 contacts → |
“Sorbis is a next-generation Managed Service Provider (MSP) helping hospitality and professional service firms modernize their IT, reduce costs, and stay secure.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bastionxbastionx.io HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 9 contacts → |
“At BastionX, we revolutionize how businesses harness technology.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | EMC IT Solutionsemcitsolutions.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“EMC IT Solutions is a Managed IT Services provider based in New York City, delivering secure, reliable, and scalable technology solutions to businesses nationwide.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 103 company matches
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Managed security services companies: dataset insights
September 14, 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
103 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 103 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: September 14, 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 ↗
Managed security services companies by metro in the United States
- Managed security services companies in Miami81
- Managed security services companies in Houston80
- Managed security services companies in Dallas63
- Managed security services companies in Austin61
- Managed security services companies in Chicago56
- Managed security services companies in Atlanta51
- Managed security services companies in Los Angeles49
- Managed security services companies in San Francisco46
- Managed security services companies in Tampa44
- Managed security services companies in Washington42
- Managed security services companies in Charlotte38
- Managed security services companies in Denver35
- Managed security services companies in San Diego34
- Managed security services companies in Las Vegas32
- Managed security services companies in Phoenix31
- Managed security services companies in Irvine29
- Managed security services companies in Columbia28
- Managed security services companies in Boston26
- Managed security services companies in Wilmington26
- Managed security services companies in Arlington25
- Managed security services companies in San Jose25
- Managed security services companies in Scottsdale25
Questions about this company list
What does Exact match mean for managed security services 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 managed security services companies did RevenueBase find based in New York, United States?
The saved snapshot records 103 matching company records, 3,324 tracked contacts and 1,251 verified emails. The public preview displays 25 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: September 14, 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
Managed security services companies by geography
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- Managed security services companies based in France
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Cite this list
RevenueBase Data Team. Top 25 managed security services companies based in New York, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/managed-security-services-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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