Cybersecurity startup Straiker today announced raising $64 million in a Series A funding round that brings the total raised by the company to $85 million.
The new investment round was co-led by Marathon Management Partners, Citi Ventures, Illuminate Financial, and Workday Ventures, with additional support from Bain Capital Ventures and Lightspeed.
Launched in 2025, California-based Straiker has built a platform that helps organizations identify AI agents in their environments and gain visibility into their access, behavior, and risks.
The solution, Straiker says, integrates comprehensive AI discovery with pre-deployment adversarial testing that surfaces vulnerabilities and runtime protection that stops threats in real time.
Pre-deployment testing is improved based on threat detections from production, while runtime protections are strengthened through the identification of flaws during testing.
Additionally, Straiker works with frontier AI labs to gain early knowledge of emerging attack techniques and continuously improve detections and defenses.
The startup’s platform is already trusted by Fortune 500 enterprises to deploy internally built and third-party AI agents.
“Our uniqueness comes from pairing the industry’s most comprehensive agentic exploit dataset with an AI-native security engine purpose-built for autonomous threats. That foundation allows us to secure the next generation of AI-powered enterprises,” said Straiker co-founder and CTO Sreenath Kurupati.
Related: Nebulock Raises $25 Million for AI-Native Contextual Security
Related: Runlayer Raises $30 Million in Series A Funding
Related: Dream Raises $260 Million at $3 Billion Valuation
Related: NewCore Emerges From Stealth Mode With $66 Million in Funding
