ReliaQuest is a cybersecurity company founded in 2007 as a bootstrapped startup and now valued at over $1 billion. Its core product, GreyMatter, is an agentic AI security operations platform that combines artificial intelligence, automation, and expert knowledge to help enterprise security teams detect, contain, and respond to threats. The platform is designed to unify security operations, reduce complexity, and provide continuous measurement of security performance.
The company serves more than 1,000 customers worldwide and operates out of six global centres. It employs over 1,200 people and has raised $350 million in growth equity, with KKR and FTV Capital among its investors.
ReliaQuest's technical work spans agentic AI, security automation, and expert knowledge integration - applied specifically to the security operations challenges faced by large enterprises. The GreyMatter platform is positioned to compress threat detection and response cycles to minutes, regardless of where or when an incident occurs.
The company places explicit emphasis on organisational culture, articulating four core values - accountability, helpfulness, adaptability, and focus - as drivers of performance rather than as aspirational statements.
