CISO Tribune

Vendor comparison · 2 companies

ReliaQuest vs ThreatDefence

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. ThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond. CISO Tribune files both under AI SOC analysts. 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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  • ReliaQuest
  • ThreatDefence
ReliaQuest vs ThreatDefence: Products, Customers and Funding Compared
ReliaQuestReliaQuest 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.comThreatDefenceThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond.threatdefence.com
What it sells
  • 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.
  • SecOps Platform[2][3][4][5]A platform providing end-to-end coverage and threat detection, backed by an AI-enabled 24x7 SOC.
  • SOC as a Service[2]A fully managed 24×7 SOC that combines the SecOps Platform with a team of cyber security experts.
  • SIEM[1][5][6]A SIEM built for investigation that connects, enriches and keeps security events searchable.
  • Network Detection and Response[3]Network Detection and Response sensors and a deception toolset to discover lateral movement.
  • Compromise Assessment[8]A review of an environment to reveal existing or past intrusions and security weaknesses.
  • Cyber Risk Management[9]A solution that assists customers in proactively identifying security gaps in their environment.
  • Cyber Range[10]Cyber range solutions with simulations of cyber attacks for cyber security teams and students.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot 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
  • August 14, 2026Florida State Athletics named ReliaQuest its official jersey patch partner for men's basketball starting with the 2026-27 season.[12]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[13]
  • 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
ReliaQuest 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.Not written yet
Last verified
November 6, 2026November 10, 2026

Where they overlap

  • ReliaQuest and ThreatDefence are both filed under AI SOC analysts.

Where they differ, field by field

  • ReliaQuest's primary category is AI SOC analysts; ThreatDefence's is MDR and managed SOC.
  • ReliaQuest is also filed under External attack surface management, Digital risk protection and SOAR and security automation. ThreatDefence is also filed under SIEM and Network detection and response.
  • ReliaQuest lists GreyMatter, GreyMatter Detect and Universal Translator. ThreatDefence lists SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.

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.

What it sells: ThreatDefence

What SOC as a Service does[2]
ThreatDefence continuously monitors customer environments across cloud, network, endpoints, identity and applications. ThreatDefence analysts conduct scheduled and intelligence-led hunts to identify indicators of compromise, lateral movement, credential misuse and living-off-the-land activity. ThreatDefence customers have access to a dedicated portal with real-time dashboards, incident timelines, analyst notes, reporting and service visibility.
What Network Detection and Response does[3]
ThreatDefence offers Network Detection and Response sensors and a deception toolset to discover lateral movement. ThreatDefence network detection covers lateral movement and insider threats using session evidence and packet analysis. ThreatDefence agents connect network findings with endpoint and identity activity, helping analysts assess the scope and prepare targeted containment.
What Compromise Assessment does[8]
ThreatDefence offers a Compromise Assessment that helps reveal existing or past intrusions, identify vulnerabilities or weaknesses, and detect malicious activity, policy violations and security misconfigurations. ThreatDefence deploys sensors to collect real-time data from endpoints, cloud and network. ThreatDefence inspects an environment over an extended period of time to identify dormant malware or covert threat actors.
What Cyber Risk Management does[9]
ThreatDefence offers a Cyber Risk Management solution that assists customers in proactively identifying security gaps in their environment. ThreatDefence provides automated weekly and monthly reporting based on operational and compliance needs. ThreatDefence pinpoints vulnerable, exploitable or misconfigured systems in a customer network.
What Cyber Range does[10]
ThreatDefence offers cyber range solutions that provide simulations of cyber attacks for cyber security teams and students. ThreatDefence runs simulations on virtual replicas of critical infrastructure networks including power grids, train control systems and water treatment plants. The platform of ThreatDefence organizes trainees into groups dedicated to specific missions and objectives.

Questions about ReliaQuest and ThreatDefence

What do ReliaQuest and ThreatDefence sell?
ReliaQuest sells GreyMatter, GreyMatter Detect and Universal Translator. ThreatDefence sells SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.
Are ReliaQuest and ThreatDefence in the same category?
They share AI SOC analysts. ReliaQuest's primary category is AI SOC analysts and ThreatDefence's is MDR and managed SOC.
Who are ReliaQuest and ThreatDefence sold to?
ReliaQuest describes enterprises that adopt tools to keep up with evolving demands.
What have ReliaQuest and ThreatDefence 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 ReliaQuest

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. ReliaQuest states that it exists to Make Security Possible, allowing enterprise security teams to detect, contain and respond to threats using GreyMatter. GreyMatter includes 6 agentic Teammates that use hundreds of agent skills and AI tools to work toward an objective, not just tasks. GreyMatter includes persona-based agentic AI Teammates built on 10+ years of proprietary incident response data. GreyMatter collects data from any source or technology and normalizes it with the patented Universal Translator.[1][2][4]

GreyMatter detects threats wherever customer data lives, whether in the cloud, on the endpoint, inside a SIEM, directly at the source, or in transit. GreyMatter unifies threat detection, investigation, hunting, and containment across a customer's environment without requiring data to be moved. 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. ReliaQuest describes detecting threats at the source or in transit and moving and storing only what matters. ReliaQuest designs GreyMatter to be vendor-neutral. Customers connect GreyMatter with sources like SIEM, EDR, network security, and cloud tools.[6][7]

GreyMatter investigates, documents, and responds to routine alerts autonomously. GreyMatter automates phishing triage and applies shared intel for proactive defense across the ReliaQuest customer base. GreyMatter connects the steps between detection, investigation, and response with workflows tailored to the customer's business. ReliaQuest names Slack and Microsoft Teams as integrated tools for communication between users and business units. GreyMatter translates, normalizes, and correlates data to give a team a unified view. GreyMatter unifies tools such as email, network, and endpoint into one command system. GreyMatter lets teams find and fix vulnerabilities, prioritize what is exploitable, and validate risks.[4][8]

GreyMatter unifies detection, response, and visibility across a multicloud and multi-SIEM environment. GreyMatter correlates events across clouds and SIEMs, triggering automated playbooks. GreyMatter detects threats at the source across IaaS, PaaS, SaaS, and SIEM. GreyMatter integrates OT-specific technologies like Armis, Dragos, and Nozomi to enrich detection rules. GreyMatter correlates data from IT and OT sources, including firewalls, PLC logs, and remote access systems. GreyMatter bridges the gap between OT and IT environments. GreyMatter delivers metrics in a unified agentic AI SecOps platform. GreyMatter lets teams compare detection, investigation, and response performance across all entities to identify trends. GreyMatter lets teams benchmark data source visibility and coverage against peer organizations.[9][10][11]

ReliaQuest is headquartered in Tampa, FL, with operations centers in Tampa, Las Vegas, Salt Lake City, Dublin, London and Pune, India. ReliaQuest states a valuation of over $3.4 billion, over 1,200 team members and over 1,000 customers. ReliaQuest states revenue growth to more than $400M in 2025. Brian Foster is responsible for overseeing all areas of ReliaQuest's product development and technical operations. ReliaQuest states four values: being accountable, helpful, adaptable, and focused.[2][5][9][10][11]

ReliaQuest on the record

Sources

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

ThreatDefence full record

  1. [1]threatdefence.comThreatDefence · threatdefence.com · undated page, accessed November 10, 2026 · Tier A
  2. [2]24x7 SOC as a Service | Managed SOC Monitoring and ResponseThreatDefence · undated page, accessed November 11, 2026 · Tier A
  3. [3]Enterprise Security Operations Platform | 24x7 SOC and SIEMThreatDefence · undated page, accessed November 11, 2026 · Tier A
  4. [4]24x7 Security Operations Team | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  5. [5]AI-Enabled Security Operations Platform and 24x7 SOC | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  6. [6]SIEM as a Service | Next Generation Cloud SIEM | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  7. [7]Industrial SecOps Platform for OT Security | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  8. [8]Cyber Security Compromise Assessment | Breach Detection & Forensics - ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  9. [9]Cybersecurity Risk Management Services | Enterprise Risk Protection | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  10. [10]Cyber Security Simulation & Attack Simulation Platform | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  11. [11]Evidence-Based Security for Financial Services | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A

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