CISO Tribune

Vendor comparison · 2 companies

NopSec vs Red Sentry

NopSec sells a Cyber Threat Exposure Management (CTEM) platform and penetration testing services. Red Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships. CISO Tribune files both under Vulnerability management and Penetration testing and red team services. 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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  • NopSec
  • Red Sentry
NopSec vs Red Sentry: Products, Customers and Funding Compared
NopSecNopSec sells a Cyber Threat Exposure Management (CTEM) platform and penetration testing services.nopsec.comRed SentryRed Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships.redsentry.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.
  • PTaaS[1][3][5]A platform that gives teams a central place to track findings, remediation, retesting, communication, and report delivery.
  • Source Code Review[7]Tool-assisted static analysis paired with manual security review and validation.
  • Red Teaming[4]A simulated full-scale attack that tests an organization's people, processes, and technology.
  • Physical Security Assessment[9]Tests whether physical controls, people, and processes prevent unauthorized access to agreed locations and objectives.
Categories
Headquarters
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Founded
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Ownership and funding
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Named customers
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Recent news
Not stated on its pagesNot stated on its pages
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 yetFrom its own pages, Red Sentry sells its testing services to organizations of all sizes. For mature security teams, Red Sentry offers advanced Red Teaming and adversary simulation. Red Sentry addresses buyers whose auditors require more than a scan. Red Sentry reviews both traditionally developed and AI-assisted codebases.
Last verified
November 13, 2026November 13, 2026

Where they overlap

  • NopSec and Red Sentry are both filed under Vulnerability management and Penetration testing and red team services.

Where they differ, field by field

  • NopSec's primary category is Exposure prioritisation and CTEM; Red Sentry's is Penetration testing and red team services.
  • Red Sentry is also filed under Breach simulation and automated pen-testing.
  • NopSec lists CTEM Platform and Penetration Testing. Red Sentry lists PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.

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: Red Sentry

What PTaaS does[1][3][5]
PTaaS means penetration testing as a service. Every Red Sentry engagement includes full access to the PTaaS platform at no extra cost. The platform offers Jira integration for pushing remediation tickets to engineering teams. Portal access lets teams track project status, access reports and evidence, and manage remediation.
What Source Code Review does[7]
Source code review is a standalone Red Sentry service. Red Sentry reviews traditionally developed and AI-assisted codebases using the same human-led security review process. One round of remediation testing is included when requested within 90 days of report delivery, unless otherwise scoped.
What Red Teaming does[4]
Red Sentry follows the MITRE ATT&CK framework to simulate the entire lifecycle of a breach. Red team work includes testing endpoint protection (EDR/AV) by attempting to execute custom malware or tools. Red Sentry collaborates with the Blue Team to explain how controls were bypassed.
What Physical Security Assessment does[9]
Physical security assessment is a standalone Red Sentry service. Red Sentry agrees written authorization and rules of engagement before testing starts. Findings are documented with photographic evidence, steps to recreate them, severity, and remediation guidance.

Questions about NopSec and Red Sentry

What do NopSec and Red Sentry sell?
NopSec sells CTEM Platform and Penetration Testing. Red Sentry sells PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.
Are NopSec and Red Sentry in the same category?
They share Vulnerability management and Penetration testing and red team services. NopSec's primary category is Exposure prioritisation and CTEM and Red Sentry's is Penetration testing and red team services.
Who are NopSec and Red Sentry sold to?
From its own pages, Red Sentry sells its testing services to organizations of all sizes.

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

Red Sentry full record

  1. [1]redsentry.comRed Sentry · redsentry.com · undated page, accessed November 13, 2026 · Tier A
  2. [2]DetailsRed Sentry · app.redsentry.com · undated page, accessed November 13, 2026 · Tier A
  3. [3]Red Sentry | Human-Led Penetration Testing & PTaaSRed Sentry · undated page, accessed November 13, 2026 · Tier A
  4. [4]Penetration Testing & Offensive Security Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  5. [5]Web Application Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  6. [6]API Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  7. [7]Secure Code Review Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  8. [8]Cloud Penetration Testing (AWS, Azure, GCP) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  9. [9]Physical Security Pentesting | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  10. [10]Red Teaming Services: Objective-Based Attack Sims | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  11. [11]Social Engineering & Phishing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  12. [12]SOC 2 Penetration Testing Support | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  13. [13]Network Pen Testing (Internal & External) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  14. [14]Pen Testing Services for Modern Organizations | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A

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