Exaforce raises $125M Series B to scale AI-native cyber defense platform

Exaforce, an AI-focused cybersecurity startup building an agentic security operations platform, has closed a $125 million Series B funding round. The financing, announced on May 12, 2026, brings the company’s total capital raised to $200 million just one year after its $75 million Series A. Multiple reports and the company’s own materials describe the round as one of the largest in the emerging AI security operations center segment, underscoring strong investor conviction in real-time, AI-native defense against sophisticated cyber threats.

The Series B values Exaforce at approximately $725 million post-money, according to venture and industry coverage that tracks the round’s terms. The funding syndicate includes HarbourVest, Peak XV, Mayfield, Khosla Ventures, Seligman Ventures, and AICONIC, with no single lead investor formally disclosed but this group consistently cited as the core backers. Exaforce plans to use the capital to deepen its real-time security reasoning capabilities, expand its AI-native SOC platform, and grow its global footprint across high-target industries such as healthcare, financial services, and technology. The company positions its platform to help security teams detect and stop attacks as they happen using multi-model AI and a continuously updated security knowledge graph.