Exein raises $270M to secure physical AI

Rome-based Exein raised $270 million led by San Francisco-based Headline at a $1.7 billion valuation on September 15, 2026. The oversubscribed round more than doubles its prior $770 million valuation. Founded in 2018, it makes security software for physical AI, machines acting in the real world, to fund acquisitions, hiring and expansion in the U.S. and Asia Pacific.