Straiker raises $64M to secure enterprise AI agents

This article was published on June 30, 2026 Straiker has raised a $64mn Series A, led by Marathon, to secure the AI agents flooding into enterprises, a workforce IDC expects to top a billion by 2029 and that traditional security tools were never built to watch. AI agents are pouring into companies, and most security tools were never built to watch them. Straiker wants to fix that. The startup has just raised $64mn to police a workforce that does not clock in. The Series A was revealed first by Axios. It takes the Mountain View company’s total funding to $85mn. Marathon Management Partners led the round. Citi Ventures, Illuminate Financial and Workday Ventures joined, with earlier backers Bain Capital Ventures and Lightspeed returning. Straiker calls itself the agentic security company, and the pitch is simple. AI agents now book travel, write code and run back-office tasks. They act on their own across company systems. That independence is useful and risky in equal measure. Old security tools assume software follows fixed rules. Agents do not. They reason on the fly and take actions no one scripted. That leaves a gap traditional controls cannot cover, the company said in its announ