ReliaQuest vs runZero

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]}