ReliaQuest Raises $500 Million in Funding at $3.4 Billion Valuation

Cybersecurity company ReliaQuest announced it has raised over $500 million in a growth funding round led by new investor EQT alongside existing backers KKR and FTV Capital. Other participants included Ten Eleven Ventures and Finback Investment Partners. The funding values the company at $3.4 billion and will support continued innovation in AI-driven cybersecurity automation and global expansion.

ReliaQuest’s platform, GreyMatter, integrates with over 200 cybersecurity tools and uses Agentic AI to help enterprise security teams detect, investigate, and respond to threats quickly. Since KKR's 2020 investment, the company has quadrupled its annual recurring revenue to surpass $300 million and is currently growing more than 30% annually while maintaining profitability.

ReliaQuest aims to use this investment to further enhance its platform’s automation capabilities and extend its global reach, helping customers respond to cyber threats in less than five minutes. The company serves over 1,000 enterprises globally and employs more than 1,200 people across six operating centers.