Straiker Secures $64M to Defend the Rising Tide of AI Agents

The funding round, led by Marathon Management Partners with participation from Citi Ventures, Illuminate Financial, and Workday Ventures, brings Straiker’s total capital to $85 million. The company, co-founded by former Palo Alto Networks executive Ankur Shah and security veteran Sreenath Kurupati, focuses on the unique threats posed by agents that reason dynamically rather than following traditional, deterministic software paths.

Traditional security controls often fail to account for autonomous behavior, a vulnerability highlighted by recent incidents where AI bots were manipulated to bypass authentication protocols. Internal testing by the company’s STAR Labs arm revealed that 91% of attacks on productivity agents resulted in silent data exfiltration without requiring traditional malware or stolen credentials. Straiker’s platform addresses these gaps through comprehensive discovery, pre-deployment adversarial testing, and real-time runtime monitoring.

Since its 2025 launch, the company has seen run-rate revenue expand by over 15x, signaling a shift in enterprise priorities as AI systems move from experimental tools to core operational components. The new capital is earmarked for product development, the expansion of its threat research capabilities, and global scaling to meet demand from Fortune 500 clients and frontier AI laboratories.