Company lists · Data refreshed October 2026
Top 25 Vulnerability notification software companies based in the United States
RevenueBase identified 113 company matches for vulnerability notification software companies associated with the United States as of October 2026 and tracks 5,429 professional contacts across them, including 2,973 with verified work emails. New York is the largest hub.
This list covers company matches for vulnerability notification software companies associated with the 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 20, 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 vulnerability notification software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,237 contacts → | ||||
Exact match “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 2 | 239 contacts → | ||||
Exact match “Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 3 | 234 contacts → | ||||
Exact match “TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 4 | 194 contacts → | ||||
Exact match “SecPod is a leading cybersecurity technology company committed to preventing cyberattacks through proactive security.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 5 | 125 contacts → | ||||
Exact match “Nucleus is the exposure management platform enterprise and government security leaders rely on to reduce cyber risk at scale.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 6 | 109 contacts → | ||||
Exact match “Uni5 Xposure by Hive Pro consolidates fragmented security data: vulnerabilities, assets, threats, and controls, into one unified data plane.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 7 | 107 contacts → | ||||
Exact match “As of February 3, 2025, Cylance® endpoint security assets, including CylanceENDPOINT, CylanceEDGE and CylanceMDR, are now part of Arctic Wolf.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 8 | 102 contacts → | ||||
Exact match “Vicarius is a cybersecurity company focused on turning vulnerability management into real remediation.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 9 | 84 contacts → | ||||
Exact match “VulnCheck helps organizations outpace adversaries with exploit intelligence that predicts avenues of attack with speed and accuracy.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 10 | 51 contacts → | ||||
Exact match “Our team of world-class reverse engineers discovers exploitable critical vulnerabilities in common commercial software and hardware BEFORE they can be manipulated by attackers.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 11 | 49 contacts → | ||||
Exact match “Software ships daily.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 12 | 49 contacts → | ||||
Exact match “Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 13 | 48 contacts → | ||||
Exact match “Cybral is based in the US with operating subsidiaries in the North America, Europe and MENA.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 14 | 48 contacts → | ||||
Exact match “Mondoo's Agentic Managed Vulnerability Service, a combination of local expert security professionals and a proven AI-native platform, delivers the outcomes security professionals…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 15 | 40 contacts → | ||||
Exact match “Skycep is an endpoint security service provider with various solutions for Incident Detection Response and Vulnerability Management.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 16 | 37 contacts → | ||||
Exact match “Vigilant is a global cyber security technology company that exists to protect and serve our customers in the automotive, healthcare, financial, legal and general business…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 17 | 34 contacts → | ||||
Exact match “Vulnerability assessment scanners are adept at finding security flaws, but they leave professionals with chaotic lists of vulnerabilities to sift through.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 18 | 29 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 · Oct 20, 2026 · View company records in RevenueBase | |||||
| 19 | 29 contacts → | ||||
Exact match “Squirrel Compliancy Solution's network vulnerability assessment and management help enterprises understand their risk exposure then allows them to automate the remediation of…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 20 | 26 contacts → | ||||
Exact match “Your security tools find vulnerabilities.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 21 | 23 contacts → | ||||
Exact match “Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 22 | 19 contacts → | ||||
Exact match “Sevco Security is now part of Arctic Wolf.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Kenna is now Cisco Vulnerability Management.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Since 1998, eEye Digital Security has made vulnerability management simpler, less expensive and more effective by providing the only unified vulnerability and compliance…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 25 | 15 contacts → | ||||
Exact match “Keeping your operations moving and your network secure is our priority because we know that’s your priority.” Recorded in the RevenueBase company graph · Oct 20, 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 “vulnerability notification software 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 113 vulnerability notification software companies based in the United States
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Vulnerability notification software companies based in the United States at a glance
As of Oct 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 113 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 the United States whose business descriptions match “vulnerability notification software 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 2,973 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 20, 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.
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 “vulnerability notification software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many vulnerability notification software companies are there based in the United States?
RevenueBase identified 113 company matches for vulnerability notification software companies associated with the 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?
Qualys tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most vulnerability notification software companies?
New York leads with 9 company records, followed by San Francisco (9) and Austin (5).
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 2,973 professional contacts with verified work emails tracked across these 113 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 113 vulnerability notification software companies based in the United States. Start with a free account, no credit card.
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Vulnerability notification software companies by geography
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
- Vulnerability notification software companies based in India
- Vulnerability notification software companies based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 vulnerability notification software companies based in the 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 113 matching company records for vulnerability notification software companies based in the United States, with 5,429 tracked contacts and 2,973 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: October 20, 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 vulnerability notification software companies based in the 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 |  Qualysqualys.comHQ: Foster City, CA, United StatesReported employees: 1,001-5,000 | Foster City, CA, United States | 1,001-5,000 | Exact match | 3,237 contacts → |
“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Securin INCsecurin.ioHQ: Albuquerque, NM, United StatesReported employees: 201-500 | Albuquerque, NM, United States | 201-500 | Exact match | 239 contacts → |
“Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  TAC Securitytacsecurity.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 234 contacts → |
“TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Secpodsecpod.comHQ: Redwood City, CA, United StatesReported employees: 51-200 | Redwood City, CA, United States | 51-200 | Exact match | 194 contacts → |
“SecPod is a leading cybersecurity technology company committed to preventing cyberattacks through proactive security.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Nucleus Securitynucleussec.comHQ: Sarasota, FL, United StatesReported employees: 51-200 | Sarasota, FL, United States | 51-200 | Exact match | 125 contacts → |
“Nucleus is the exposure management platform enterprise and government security leaders rely on to reduce cyber risk at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Hive Pro, INChivepro.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 109 contacts → |
“Uni5 Xposure by Hive Pro consolidates fragmented security data: vulnerabilities, assets, threats, and controls, into one unified data plane.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cylance INCarcticwolf.comHQ: Eden Prairie, MN, United StatesReported employees: 5,001-10,000 | Eden Prairie, MN, United States | 5,001-10,000 | Exact match | 107 contacts → |
“As of February 3, 2025, Cylance® endpoint security assets, including CylanceENDPOINT, CylanceEDGE and CylanceMDR, are now part of Arctic Wolf.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Vicariusvicarius.ioHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 102 contacts → |
“Vicarius is a cybersecurity company focused on turning vulnerability management into real remediation.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Vulncheckvulncheck.comHQ: Lexington, MA, United StatesReported employees: 51-200 | Lexington, MA, United States | 51-200 | Exact match | 84 contacts → |
“VulnCheck helps organizations outpace adversaries with exploit intelligence that predicts avenues of attack with speed and accuracy.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Exodus Intelligenceexodusintel.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 51 contacts → |
“Our team of world-class reverse engineers discovers exploitable critical vulnerabilities in common commercial software and hardware BEFORE they can be manipulated by attackers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Projectdiscoveryprojectdiscovery.ioHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 49 contacts → |
“Software ships daily.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Zyston LLCzyston.comHQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 49 contacts → |
“Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cybralcybral.comHQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 48 contacts → |
“Cybral is based in the US with operating subsidiaries in the North America, Europe and MENA.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Mondoomondoo.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 48 contacts → |
“Mondoo's Agentic Managed Vulnerability Service, a combination of local expert security professionals and a proven AI-native platform, delivers the outcomes security professionals…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Skycepskycep.comHQ: Virginia Beach, VA, United StatesReported employees: 11-50 | Virginia Beach, VA, United States | 11-50 | Exact match | 40 contacts → |
“Skycep is an endpoint security service provider with various solutions for Incident Detection Response and Vulnerability Management.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Vigilantvigilantnow.comHQ: Cincinnati, OH, United StatesReported employees: 201-500 | Cincinnati, OH, United States | 201-500 | Exact match | 37 contacts → |
“Vigilant is a global cyber security technology company that exists to protect and serve our customers in the automotive, healthcare, financial, legal and general business…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Nopsecnopsec.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 34 contacts → |
“Vulnerability assessment scanners are adept at finding security flaws, but they leave professionals with chaotic lists of vulnerabilities to sift through.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ZIP Securityzipsec.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 29 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 · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Squirrel Compliancy Solutionssquirrelcompliancy.comHQ: Raleigh, NC, United StatesReported employees: 11-50 | Raleigh, NC, United States | 11-50 | Exact match | 29 contacts → |
“Squirrel Compliancy Solution's network vulnerability assessment and management help enterprises understand their risk exposure then allows them to automate the remediation of…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  PIXEEpixee.aiHQ: Baltimore, CA, United StatesReported employees: 11-50 | Baltimore, CA, United States | 11-50 | Exact match | 26 contacts → |
“Your security tools find vulnerabilities.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Black Talon Securityblacktalonsecurity.comHQ: Katonah, NY, United StatesReported employees: 11-50 | Katonah, NY, United States | 11-50 | Exact match | 23 contacts → |
“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Sevco Securitysevcosecurity.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 19 contacts → |
“Sevco Security is now part of Arctic Wolf.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Kenna Securitykennasecurity.comHQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 18 contacts → |
“Kenna is now Cisco Vulnerability Management.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Eeye Digital Securityeeye.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 16 contacts → |
“Since 1998, eEye Digital Security has made vulnerability management simpler, less expensive and more effective by providing the only unified vulnerability and compliance…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  The Teneo Grouptheteneogroup.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 15 contacts → |
“Keeping your operations moving and your network secure is our priority because we know that’s your priority.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 113 company matches
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Vulnerability notification software companies: dataset insights
October 20, 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
113 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 113 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 20, 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 ↗
Questions about this company list
What does Exact match mean for vulnerability notification software 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 vulnerability notification software companies did RevenueBase find based in the United States?
The saved snapshot records 113 matching company records, 5,429 tracked contacts and 2,973 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: October 20, 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
Vulnerability notification software companies by geography
Cite this list
RevenueBase Data Team. Top 25 vulnerability notification software companies based in the United States. Snapshot: October 20, 2026. https://revenuebase.ai/companies/vulnerability-notification-software-companies/united-states.
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
- Vulnerability notification software companies based in India
- Vulnerability notification software companies based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 vulnerability notification software companies based in the United States
RevenueBase records 113 matching company records for vulnerability notification software companies based in the United States, with 5,429 tracked contacts and 2,973 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: October 20, 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 vulnerability notification software companies based in the 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 | Qualysqualys.com HQ: Foster City, CA, United StatesReported employees: 1,001-5,000 | Foster City, CA, United States | 1,001-5,000 | Exact match | 3,237 contacts → |
“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Securin INCsecurin.io HQ: Albuquerque, NM, United StatesReported employees: 201-500 | Albuquerque, NM, United States | 201-500 | Exact match | 239 contacts → |
“Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | TAC Securitytacsecurity.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 234 contacts → |
“TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Secpodsecpod.com HQ: Redwood City, CA, United StatesReported employees: 51-200 | Redwood City, CA, United States | 51-200 | Exact match | 194 contacts → |
“SecPod is a leading cybersecurity technology company committed to preventing cyberattacks through proactive security.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nucleus Securitynucleussec.com HQ: Sarasota, FL, United StatesReported employees: 51-200 | Sarasota, FL, United States | 51-200 | Exact match | 125 contacts → |
“Nucleus is the exposure management platform enterprise and government security leaders rely on to reduce cyber risk at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Hive Pro, INChivepro.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 109 contacts → |
“Uni5 Xposure by Hive Pro consolidates fragmented security data: vulnerabilities, assets, threats, and controls, into one unified data plane.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cylance INCarcticwolf.com HQ: Eden Prairie, MN, United StatesReported employees: 5,001-10,000 | Eden Prairie, MN, United States | 5,001-10,000 | Exact match | 107 contacts → |
“As of February 3, 2025, Cylance® endpoint security assets, including CylanceENDPOINT, CylanceEDGE and CylanceMDR, are now part of Arctic Wolf.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Vicariusvicarius.io HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 102 contacts → |
“Vicarius is a cybersecurity company focused on turning vulnerability management into real remediation.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Vulncheckvulncheck.com HQ: Lexington, MA, United StatesReported employees: 51-200 | Lexington, MA, United States | 51-200 | Exact match | 84 contacts → |
“VulnCheck helps organizations outpace adversaries with exploit intelligence that predicts avenues of attack with speed and accuracy.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Exodus Intelligenceexodusintel.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 51 contacts → |
“Our team of world-class reverse engineers discovers exploitable critical vulnerabilities in common commercial software and hardware BEFORE they can be manipulated by attackers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Projectdiscoveryprojectdiscovery.io HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 49 contacts → |
“Software ships daily.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Zyston LLCzyston.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 49 contacts → |
“Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cybralcybral.com HQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 48 contacts → |
“Cybral is based in the US with operating subsidiaries in the North America, Europe and MENA.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Mondoomondoo.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 48 contacts → |
“Mondoo's Agentic Managed Vulnerability Service, a combination of local expert security professionals and a proven AI-native platform, delivers the outcomes security professionals…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Skycepskycep.com HQ: Virginia Beach, VA, United StatesReported employees: 11-50 | Virginia Beach, VA, United States | 11-50 | Exact match | 40 contacts → |
“Skycep is an endpoint security service provider with various solutions for Incident Detection Response and Vulnerability Management.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Vigilantvigilantnow.com HQ: Cincinnati, OH, United StatesReported employees: 201-500 | Cincinnati, OH, United States | 201-500 | Exact match | 37 contacts → |
“Vigilant is a global cyber security technology company that exists to protect and serve our customers in the automotive, healthcare, financial, legal and general business…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Nopsecnopsec.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 34 contacts → |
“Vulnerability assessment scanners are adept at finding security flaws, but they leave professionals with chaotic lists of vulnerabilities to sift through.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ZIP Securityzipsec.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 29 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 · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Squirrel Compliancy Solutionssquirrelcompliancy.com HQ: Raleigh, NC, United StatesReported employees: 11-50 | Raleigh, NC, United States | 11-50 | Exact match | 29 contacts → |
“Squirrel Compliancy Solution's network vulnerability assessment and management help enterprises understand their risk exposure then allows them to automate the remediation of…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | PIXEEpixee.ai HQ: Baltimore, CA, United StatesReported employees: 11-50 | Baltimore, CA, United States | 11-50 | Exact match | 26 contacts → |
“Your security tools find vulnerabilities.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Black Talon Securityblacktalonsecurity.com HQ: Katonah, NY, United StatesReported employees: 11-50 | Katonah, NY, United States | 11-50 | Exact match | 23 contacts → |
“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sevco Securitysevcosecurity.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 19 contacts → |
“Sevco Security is now part of Arctic Wolf.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kenna Securitykennasecurity.com HQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 18 contacts → |
“Kenna is now Cisco Vulnerability Management.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Eeye Digital Securityeeye.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 16 contacts → |
“Since 1998, eEye Digital Security has made vulnerability management simpler, less expensive and more effective by providing the only unified vulnerability and compliance…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Teneo Grouptheteneogroup.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 15 contacts → |
“Keeping your operations moving and your network secure is our priority because we know that’s your priority.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 113 company matches
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Vulnerability notification software companies: dataset insights
October 20, 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
113 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 113 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 20, 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 ↗
Questions about this company list
What does Exact match mean for vulnerability notification software 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 vulnerability notification software companies did RevenueBase find based in the United States?
The saved snapshot records 113 matching company records, 5,429 tracked contacts and 2,973 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: October 20, 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
Vulnerability notification software companies by geography
Cite this list
RevenueBase Data Team. Top 25 vulnerability notification software companies based in the United States. Snapshot: October 20, 2026. https://revenuebase.ai/companies/vulnerability-notification-software-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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