This founder left Silicon Valley to challenge U.S. defense supremacy from Athens, and investors are paying attention

Dimitrious Kottas, formerly of Apple’s Special Projects Group, left Silicon Valley in 2021 to found Delian, a Greek defense startup focused on autonomous systems and surveillance technology. Starting with solar-powered surveillance towers monitoring Greek borders and detecting wildfires, Delian has expanded its product line to include advanced autonomous aerial and sea drones, notably a patented low-cost, deployable “suicide vessel” designed to operate undetected on the seabed. Kottas leverages his expertise in perception technology—gained from academic research and work on autonomous systems at Apple—to drive innovation in defense autonomy, which he believes will be central to future weapon systems. Delian’s approach is pragmatic and disruptive, aiming to penetrate Europe’s fragmented defense market by offering scalable, cost-effective solutions. The company recently secured $14 million in funding from investors including Air Street Capital and Marathon Venture Capital, bringing its total funding to $22 million. Despite technological progress and operational success in Greece, Delian faces