CISO Tribune

Vendor comparison · 2 companies

Intruder vs ReliaQuest

Intruder sells a single platform for continuous scanning across infrastructure, apps and cloud environments. ReliaQuest sells GreyMatter, an agentic AI security operations platform that allows security teams to detect, contain, investigate and respond to threats, regardless of the data source. CISO Tribune files both under External attack surface 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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  • Intruder
  • ReliaQuest
Intruder vs ReliaQuest: Products, Customers and Funding Compared
IntruderIntruder sells a single platform for continuous scanning across infrastructure, apps and cloud environments.intruder.ioReliaQuestReliaQuest sells GreyMatter, an agentic AI security operations platform that allows security teams to detect, contain, investigate and respond to threats, regardless of the data source.reliaquest.com
What it sells
  • Attack Surface Management[1][8]Finds assets outside an inventory and shows monitored ports and services.
  • Application Security[3]Continuous dynamic application security testing for web apps and single-page apps.
  • Cloud Security[1][3][9]Agentless scanning across AWS, Azure and Google Cloud.
  • GreyMatter[1][2][3][4][6][7][8][9][10][11]An agentic AI security operations platform for security teams to detect, contain, investigate and respond to threats.
  • GreyMatter Detect[6][9]Centralizes all created rule logic in a library from any author.
  • Universal Translator[2][3]A patented way to normalize data collected from any source or technology.
Categories
Headquarters
London, United Kingdom[2]Not stated on its pages
Founded
2015[2][4]Not stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • August 14, 2026Florida State Athletics named ReliaQuest its official jersey patch partner for men's basketball starting with the 2026-27 season.[12]
G2 and Gartner Peer Insights
  • G2: listed, seen November 12, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetReliaQuest describes enterprises that adopt tools to keep up with evolving demands. ReliaQuest addresses organizations that manage security across multiple business units. ReliaQuest describes multicloud and multi-SIEM environments as ones that GreyMatter covers. ReliaQuest addresses organizations that run both OT and IT environments, including threats targeting critical infrastructure. ReliaQuest sells GreyMatter for environments that connect sources like SIEM, EDR, network security, and cloud tools.
Last verified
November 12, 2026November 6, 2026

Where they overlap

  • Intruder and ReliaQuest are both filed under External attack surface management.

Where they differ, field by field

  • Intruder's primary category is Vulnerability management; ReliaQuest's is AI SOC analysts.
  • Intruder is also filed under Cloud security posture management and Penetration testing and red team services. ReliaQuest is also filed under Digital risk protection and SOAR and security automation.
  • Intruder lists Attack Surface Management, Application Security and Cloud Security. ReliaQuest lists GreyMatter, GreyMatter Detect and Universal Translator.
  • Intruder is headquartered in London, United Kingdom.
  • Intruder was founded in 2015.

What it sells: Intruder

What Attack Surface Management does[1][8]
It connects to AWS, Azure, Google Cloud, and Cloudflare accounts and takes any domains and IPs. The attack surface view shows every monitored port, the service running on it, and the version behind it.
What Application Security does[3]
Application Security provides continuous dynamic application security testing (DAST) for web apps, single-page apps and underlying infrastructure, including authenticated scanning behind login pages. A ZAP-powered scanner runs over 75 application checks and integrates with CI/CD pipelines through GitHub, GitLab, Jira and Azure DevOps.
What Cloud Security does[1][3][9]
Cloud Security runs agentless scanning across AWS, Azure and Google Cloud for misconfigurations, insecure permissions, exposed secrets and critical vulnerabilities. CSPM checks run daily and trigger when the environment changes. Intruder scans container images at the registry level.

What it sells: ReliaQuest

What GreyMatter does[1][2][3][4][6][7][8][9][10][11]
GreyMatter includes 6 agentic Teammates that use hundreds of agent skills and AI tools to work toward an objective, not just tasks. GreyMatter detects threats wherever data lives, whether in the cloud, on the endpoint, inside a SIEM, directly at the source, or in transit. GreyMatter unifies detection, response, and visibility across a multicloud and multi-SIEM environment.
What GreyMatter Detect does[6][9]
GreyMatter Detect centralizes all created rule logic in its library from any author. GreyMatter Detect allows customers to test and validate detections before and after deployment and monitors their performance continuously.

Questions about Intruder and ReliaQuest

What do Intruder and ReliaQuest sell?
Intruder sells Attack Surface Management, Application Security and Cloud Security. ReliaQuest sells GreyMatter, GreyMatter Detect and Universal Translator.
Are Intruder and ReliaQuest in the same category?
They share External attack surface management. Intruder's primary category is Vulnerability management and ReliaQuest's is AI SOC analysts.
Where are Intruder and ReliaQuest headquartered?
Intruder is headquartered in London, United Kingdom.
When were Intruder and ReliaQuest founded?
Intruder was founded in 2015.
Who are Intruder and ReliaQuest sold to?
ReliaQuest describes enterprises that adopt tools to keep up with evolving demands.
What have Intruder and ReliaQuest announced recently?
August 14, 2026: Florida State Athletics named ReliaQuest its official jersey patch partner for men's basketball starting with the 2026-27 season.

About Intruder

Intruder sells a single platform for continuous scanning across infrastructure, apps and cloud environments. Intruder was founded in 2015 by Chris Wallis to help solve the information overload crisis in vulnerability management. Intruder Systems Ltd completed the AICPA Service Organization Control (SOC) 2 Type 2 audit. The Intruder portal runs as a SaaS environment with logical data separation between clients' datasets.[5]

Intruder runs emerging threat scans within hours of new critical vulnerabilities going public. Intruder checks systems for 170,000+ infrastructure weaknesses, 75+ web-layer security issues and other misconfigurations. Intruder emerging threat scans check systems for newly discovered vulnerabilities automatically, as soon as a check is available. Intruder is powered by scanners including Tenable, Nuclei, OpenVas, and ZAP. Intruder offers internal target scanning only on the Pro and Enterprise plans.[6][7]

Intruder describes attack surface management as the continuous process of discovering, assessing, and reducing every digital asset an attacker can reach, including systems that are unknown or unmanaged. Port scans run daily in Intruder to track what is exposed. New service scans trigger in Intruder when something in the environment changes, and emerging threat scans run when a major new vulnerability is disclosed. The Intruder attack surface view shows every monitored port, the service running on it, and the version behind it, with a screenshot of each web service. Users of the Intruder attack surface view can search or filter by port, service, product, host status, or certificate expiry.[1][8]

Intruder cloud security needs no agents and connects to AWS, Azure, and Google Cloud accounts. Intruder connects to cloud accounts using read-only access, and nothing is deployed into the infrastructure. Intruder scans container images at the registry level. Intruder shows cloud misconfigurations, exposed secrets, insecure permissions, CVEs, and attack surface issues in one place.[8][9]

A ZAP-powered scanner in Intruder runs over 75 application checks for injection flaws, misconfigurations and zero-days. The same Intruder scanner integrates with CI/CD pipelines through GitHub, GitLab, Jira and Azure DevOps, and prioritizes results with remediation advice.

Intruder takes a white-box approach, working from source code. Intruder's agents are built and trained by CREST-certified pentesters and validate every finding against the application. Intruder delivers AI pentest results in a report containing an executive summary, full technical details, and remediation guidance. Intruder formats the AI pentest report to serve as compliance evidence for frameworks like SOC 2, ISO 27001, PCI DSS, and Cyber Essentials. Intruder also connects to a Bitbucket code repo to run a pentest on demand.[10][11]

Intruder integrates with Jira, GitHub, GitLab, Azure DevOps, and ServiceNow for issue tracking, Slack and Microsoft Teams for alerts, Drata and Vanta for compliance, and Microsoft Sentinel for SIEM. Intruder syncs container images from Docker Hub accounts for scanning. Intruder syncs targets from a Cloudflare environment and scans them for vulnerabilities. Intruder supports Okta SSO for authenticating users. Intruder prices the Cloud and Pro plans as a base fee plus a fee-per-target. Intruder quotes Enterprise pricing separately, because it depends on requirements and the size and complexity of the customer's systems. Customers can choose either a monthly rolling plan, which can be cancelled at any time, or an annual plan.[7][9][11]

Ravelin uses Intruder for continuous vulnerability scanning of its payment systems. Brainlabs relies on Intruder to find unknowns as new acquisitions reshape its attack surface. Hill & Smith uses Intruder to uncover hidden assets and expand visibility of its attack surface. Litmus uses Intruder to automate security and protect customer data. Surveil partnered with Intruder to gain attack surface visibility.[1][7][8][9][10]

Intruder on the record

Sources

Intruder full record

  1. [1]intruder.ioIntruder · intruder.io · undated page, accessed November 12, 2026 · Tier A
  2. [2]CareersIntruder · intruder.io · undated page, accessed November 12, 2026 · Tier A
  3. [3]Intruder | Stop Breaches Before They StartIntruder · undated page, accessed November 12, 2026 · Tier A
  4. [4]Intruder About Us | Providing Effortless Cyber SecurityIntruder · undated page, accessed November 12, 2026 · Tier A
  5. [5]Intruder Security | How We Keep Your Data SecureIntruder · undated page, accessed November 12, 2026 · Tier A
  6. [6]Solution TemplateIntruder · undated page, accessed November 12, 2026 · Tier A
  7. [7]Intruder Pricing | Plans & Bolt-onsIntruder · undated page, accessed November 12, 2026 · Tier A
  8. [8]Attack Surface Management for Shadow IT and Exposures | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  9. [9]Cloud Security for AWS, Azure and Google Cloud in One View | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  10. [10]AI Pentesting: On-Demand Web App Pentests in Hours | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  11. [11]Integrations | Jira, Slack, Vanta, AWS & MoreIntruder · undated page, accessed November 12, 2026 · Tier A
  12. [12]Customer Success Stories | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  13. [13]Intruder Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 12, 2026 · Tier C

ReliaQuest full record

  1. [1]Reliaquest launches first autonomous self learning ai agent for security operationsReliaQuest · reliaquest.com · published September 26, 2024 · Tier A
  2. [2]reliaquest.comReliaQuest · reliaquest.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]About UsReliaQuest · undated page, accessed November 10, 2026 · Tier A
  4. [4]Eliminate Tier 1 and Tier 2 Alerts with Agentic AI in ReliaQuest GreyMatterReliaQuest · undated page, accessed November 10, 2026 · Tier A
  5. [5]Home | ReliaQuest GreyMatter: The Agentic AI Security Operations Platform for Agentic DefenseReliaQuest · undated page, accessed November 10, 2026 · Tier A
  6. [6]Detect Everything Everywhere with ReliaQuest GreyMatter - Powered by Agentic AIReliaQuest · undated page, accessed November 10, 2026 · Tier A
  7. [7]ReliaQuest GreyMatter Integrations: Your Environment + Agentic AI Powered Security OperationsReliaQuest · undated page, accessed November 10, 2026 · Tier A
  8. [8]Agentic AI Solutions for SecOps - ReliaQuestReliaQuest · undated page, accessed November 10, 2026 · Tier A
  9. [9]Unified Multi-Cloud and Multi-SIEM Management with Agentic AI in ReliaQuest GreyMatterReliaQuest · undated page, accessed November 10, 2026 · Tier A
  10. [10]Securing Operational Technology with ReliaQuest GreyMatter, the Agentic AI PlatformReliaQuest · undated page, accessed November 10, 2026 · Tier A
  11. [11]Measure and Enhance SecOps Metrics with ReliaQuest GreyMatter - Powered by Agentic AIReliaQuest · undated page, accessed November 10, 2026 · Tier A
  12. [12]Florida State Athletics Announces Historic Jersey Patch Partnership with ReliaQuestReliaQuest · published August 14, 2026 · Tier A
  13. [13]ReliaQuest GreyMatter Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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