ReliaQuest Secures $500M to Boost AI Cybersecurity, Hits $3.4B Valuation

ReliaQuest, a leading AI-powered cybersecurity company, has raised over $500 million in a new funding round led by EQT, KKR, and FTV Capital, pushing its valuation to $3.4 billion. Other backers in this round include Ten Eleven Ventures and Finback Investment Partners.

Founded in 2007 by Brian Murphy, ReliaQuest specializes in enterprise-level cybersecurity through its AI-driven platform, GreyMatter. The platform helps organizations detect, investigate, contain, and respond to cyber threats in real time, streamlining security operations through advanced automation and intelligence.

Investor interest in AI and cybersecurity continues to surge as companies face increasingly sophisticated cyberattacks. ReliaQuest’s use of Agentic AI in its automation tools aligns with growing enterprise demand for more proactive and efficient security solutions.

The Tampa-based firm was previously valued at over $1 billion in 2021 following a funding round led by KKR. With this new capital, ReliaQuest aims to further develop its cybersecurity automation technologies and accelerate its international expansion strategy.

As global cyber threats evolve, the demand for robust, AI-powered security platforms like GreyMatter is expected to rise. ReliaQuest’s continued innovation and expansion position it as a key player in the cybersecurity landscape, offering scalable solutions to large enterprises worldwide.

This funding milestone not only strengthens ReliaQuest’s product roadmap but also reflects strong market confidence in its vision of transforming cybersecurity through AI. As digital infrastructure becomes more complex and vulnerable, ReliaQuest is poised to meet the growing need for intelligent, automated threat protection.