Straiker, a startup that secures enterprise AI agents, has raised a $64 million Series A, bringing its total funding to $85 million. The round, announced June 29, was led by Marathon Management Partners, Citi Ventures, Illuminate Financial and Workday Ventures, with continued backing from Bain Capital Ventures and Lightspeed.
A new attack surface
The company's pitch rests on a gap opening inside enterprises: as teams deploy agents that can act on their own — writing code, moving data, running back-office workflows — they create targets that traditional security tools were not built to watch. Straiker's platform is designed to discover, test and protect those agents, and it says it already works with Fortune 500 companies and frontier AI labs.
Its own research arm, STAR Labs, offers a blunt case for the product. In adversarial testing, the company found that 36% of successful attacks on coding agents led to remote code execution, while 91% of attacks on productivity agents ended in silent data theft — compromises that leave little visible trace.
Security veterans, fast growth
Straiker's leadership comes from established security firms. Chief executive Ankur Shah previously ran Palo Alto Networks' Prisma Cloud business as senior vice president and general manager, and chief technology officer Sreenath Kurupati led AI and security research at Akamai. Since launching in 2025, the company says its run-rate revenue has grown more than 15-fold in under a year.
The funding tracks a broader bet that securing agents becomes its own market. IDC expects more than one billion AI agents deployed across enterprises by 2029, roughly 40 times the number in 2025 — a scale that would put agent security alongside identity and endpoint protection as a standing enterprise cost rather than a niche.