CISO Tribune

Vendor comparison · 2 companies

NopSec vs VulnCheck

NopSec sells a Cyber Threat Exposure Management (CTEM) platform and penetration testing services. VulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities. CISO Tribune files both under Vulnerability management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • NopSec
  • VulnCheck
NopSec vs VulnCheck: Products, Customers and Funding Compared
NopSecNopSec sells a Cyber Threat Exposure Management (CTEM) platform and penetration testing services.nopsec.comVulnCheckVulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities.vulncheck.com
What it sells
  • CTEM Platform[1][2]A platform that aggregates vulnerability prioritization, remediation automation and performance reporting into one centralized platform.
  • Penetration Testing[1][3]NopSec in-house security experts simulate attack scenarios on a customer environment.
  • Exploit & Vulnerability Intelligence[1][4][5][10][11][15]Early access to new vulnerability information not found in the NVD, with dozens of unique fields.
  • Initial Access Intelligence[1][5][8]In-house developed exploit PoCs, packet captures and Suricata signatures for initial access vulnerabilities.
  • VulnCheck for Government[16]Features, functionality and data available only to Government partners.
Categories
Headquarters
Not stated on its pagesLexington, United States[3]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[2]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • February 17, 2026VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.[19]
  • February 17, 2026VulnCheck announced a $25 million Series B round led by Sorenson Capital, with National Grid Partners and existing investors also taking part.[12]
  • February 17, 2026Axios reported that VulnCheck raised a $25 million Series B round led by Sorenson Capital.[14]
  • December 8, 2025VulnCheck announced two executive hires: Mike Price as Vice President of Product & Engineering and Jon Loehr as Vice President of Finance.[13]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetNot written yet
Last verified
November 13, 2026November 2, 2026

Where they overlap

  • NopSec and VulnCheck are both filed under Vulnerability management.

Where they differ, field by field

  • NopSec's primary category is Exposure prioritisation and CTEM; VulnCheck's is Threat intelligence.
  • NopSec is also filed under Penetration testing and red team services.
  • NopSec lists CTEM Platform and Penetration Testing. VulnCheck lists Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
  • VulnCheck is headquartered in Lexington, United States.
  • VulnCheck is privately held.

What it sells: NopSec

What CTEM Platform does[1][2]
NopSec's CTEM platform brings SecOps and ITOps teams together to reduce exposure across the organization. It integrates with infrastructure scanners, cloud asset scanners, application scanners (SAST and DAST) and CMDBs. NopSec attack path mapping lets Security teams visually validate the effectiveness of their controls on their network.
What Penetration Testing does[1][3]
NopSec in-house security experts simulate attack scenarios to help identify critical vulnerabilities before they are weaponized. NopSec services are custom scoped and custom quoted because no two environments are exactly the same.

What it sells: VulnCheck

What Exploit & Vulnerability Intelligence does[1][4][5][10][11][15]
Exploit & Vulnerability Intelligence is offered for decisions on which vulnerabilities need immediate remediation. It gives early access to new vulnerability information not found in the NVD, along with dozens of unique fields. It includes an exploitation timeline covering when a vulnerability was first disclosed, when evidence of exploitation was first discovered and when it was remediated.
What Initial Access Intelligence does[1][5][8]
VulnCheck develops exploit PoCs, packet captures, and Suricata signatures in house. They are used to defend against initial access vulnerabilities.
What VulnCheck for Government does[16]
VulnCheck for Government includes features, functionality and data. They are available only to VulnCheck's Government partners.

Questions about NopSec and VulnCheck

What do NopSec and VulnCheck sell?
NopSec sells CTEM Platform and Penetration Testing. VulnCheck sells Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
Are NopSec and VulnCheck in the same category?
They share Vulnerability management. NopSec's primary category is Exposure prioritisation and CTEM and VulnCheck's is Threat intelligence.
Where are NopSec and VulnCheck headquartered?
VulnCheck is headquartered in Lexington, United States.
Who owns NopSec and VulnCheck?
VulnCheck is privately held.
What have NopSec and VulnCheck announced recently?
February 17, 2026: VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.

About NopSec

NopSec sells a Cyber Threat Exposure Management (CTEM) platform and penetration testing services.[1][2][3]

NopSec addresses teams that struggle to understand and remediate the vulnerabilities that matter to their business using a mix of spreadsheets. NopSec serves the RBVM needs of CISOs and Vulnerability Management teams.[2][4]

The NopSec platform aggregates vulnerability prioritization, remediation automation and performance reporting into one centralized platform. NopSec integrates with infrastructure scanners, cloud asset scanners, application scanners (SAST and DAST) and Configuration Management Databases (CMDBs). NopSec UVRM integrates with over 50 threat intelligence and asset data technologies to assess risk, prioritize remediations and report on progress. Bi-directional syncing between NopSec and vulnerability scanners ensures security tools report the same status.[1][2][5][6]

NopSec uses a patented machine-learning algorithm to surface infrastructure, application and cloud/container vulnerabilities most likely to be weaponized. NopSec prioritizes vulnerabilities associated with malware and exploit kits, not just vulnerabilities identified with exploits. The NopSec platform aggregates application and infrastructure vulnerability data. NopSec attack path mapping lets Security teams visually validate the effectiveness of their controls and the effects of their potential remediations on their network.[5][9]

NopSec provides full-stack reporting that puts application vulnerabilities next to infrastructure vulnerabilities. NopSec enables Security teams to benchmark progress, quantify risk remediation and articulate risk by business line.[5]

NopSec has performed manual penetration testing and red-teaming engagements across infrastructure, applications, wireless, mobile, social engineering and VoIP since 2008. NopSec in-house security experts simulate attack scenarios on a customer environment to help identify critical vulnerabilities before they are weaponized. NopSec evaluates exploitable areas of risk in infrastructure, applications and employees. NopSec services are custom scoped and custom quoted because no two environments are exactly the same.[7][8]

NopSec runs either agent-deployed or traditional-schedule scans. NopSec reports on risk posture and progress in the customer's UVRM instance.[9]

NopSec's security research team simulates real-world attacks against AI-powered applications, LLM integrations and agentic infrastructure to find exploitable weaknesses. NopSec tests applications that use retrieval-augmented generation for adversarial content injected into the knowledge base or retrieved documents.[3]

Cisco announced end-of-life for Kenna Security in December 2025. NopSec created a dedicated program specifically for Kenna customers. NopSec's JumpStart Program includes dedicated migration specialists. NopSec is scanner-agnostic and integrates with Tenable, Qualys, Rapid7, CrowdStrike, Defender, AWS Security Hub, Azure Security Center and many other sources.[10]

NopSec was founded by white hat hackers aiming to help companies improve their cybersecurity from attacks. NopSec follows the NIST Cybersecurity Framework with layered security controls to help identify, prevent, detect and respond to security incidents.[1][2][3][9][10][12]

NopSec on the record

Sources

NopSec full record

  1. [1]nopsec.comNopSec · nopsec.com · undated page, accessed November 13, 2026 · Tier A
  2. [2]The Fix Less, Secure More Cyber Threat Exposure Management Platform | NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  3. [3]Penetration Testing for AI Applications - NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  4. [4]Why Nopsec: NopSec Helps Leading Companies Reduce Cyber Exposure Risk | NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  5. [5]Cyber Threat Exposure Management Platform Overview | NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  6. [6]Partner Integration Ecosystem: GRC & Analytics Integrations • NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  7. [7]Pen Testing: Penetration Testing and Simulated Cyber Attacks | NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  8. [8]Security Services • NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  9. [9]Managed Vulnerabilty Management • NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  10. [10]JumpStart Program for Kenna Customers - NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  11. [11]About NopSec • NopSecNopSec · undated page, accessed November 13, 2026 · Tier A
  12. [12]Security - NopSecNopSec · undated page, accessed November 13, 2026 · Tier A

VulnCheck full record

  1. [1]vulncheck.comVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Series aVulnCheck · vulncheck.com · published March 18, 2025 · Tier A
  3. [3]PrivacyVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]Introduction - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  5. [5]VulnCheck - Outpace AdversariesVulnCheck · undated page, accessed October 30, 2026 · Tier A
  6. [6]Canary Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  7. [7]Target Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  8. [8]Initial Access Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  9. [9]Query Parameters - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  10. [10]Package Manager Support - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  11. [11]NVD Migration - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  12. [12]VulnCheck Raises $25M Series B Financing to Address Surging Demand for its Exploit Intelligence SolutionsVulnCheck · published February 17, 2026 · Tier A
  13. [13]VulnCheck Announces Strategic Leadership Appointments to Accelerate GrowthVulnCheck · published December 8, 2025 · Tier A
  14. [14]Exclusive: VulnCheck nabs $25M Series B fundingAxios · published February 17, 2026 · Tier B
  15. [15]Exploit & Vulnerability Intelligence | Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  16. [16]Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  17. [17]Company | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  18. [18]Service Terms | VulnCheckVulnCheck · published April 20, 2026 · Tier A
  19. [19]VulnCheck raises $25M to expand real-time exploit intelligence platformSiliconANGLE · published February 17, 2026 · Tier B

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