Exaforce, a California-headquartered AI startup with focus on agentic security operations, has raised $125 million in a Series B round of funding.

The investors were HarbourVest, Peak XV, Mayfield, Khosla Ventures, Seligman Ventures and AICONIC.

Exaforce plans to use the funding to advance its core platform, including multi-model AI and real-time knowledge graph, and expand the capabilities security teams need to investigate, detect, and respond faster.

Last year, the startup had raised $75 million in a Series A round.

"We built Exaforce to be the platform defenders actually work in, not just an AI layer on top of existing tools," said Ankur Singla, CEO, Exaforce. "It starts with a real-time knowledge graph that gives agents complete context from the start, and extends into rich investigation and visualization experiences that put security engineers and AI agents on the same page."

As AI-driven attack methods accelerate and zero-day threats proliferate, security teams need systems that can detect and respond faster than humans can keep up. Exaforce says its security operations provide a real-time data architecture problem wherein its agentic platform provides answers in a short period of time.

"The biggest opportunity in enterprise security is flipping the economics, so that defenders, not attackers, hold the leverage," said Vinod Khosla, Founder of Khosla Ventures and an investor in Exaforce. "When the cost of defence drops by an order of magnitude, the entire calculus of security changes. Exaforce is the architecture that makes that possible."