Skydio, with more than $740m in venture capital funding and a valuation of about $2.5bn, makes drones for the military along with civilian organisations such as police forces and utility companies. The company moved away from the consumer market in 2020 and is now the largest US drone maker. Military uses touted on its website include gaining situational awareness on the battlefield and autonomously patrolling bases. Skydio is one of a number of new military technology unicorns venture capital-backed startups valued at more than $1bn " many led by young men aiming to transform the US and its allies' military capabilities with advanced technology, be it straight-up software or software-imbued hardware. The rise of startups doing defence tech is a "big trend", says Cynthia Cook, a defence expert at the Center for Strategic and International Studies, a Washington-based-thinktank. She likens it to a contagion " and the bug is going around. According to financial data company PitchBook, investors funnelled nearly $155bn globally into defence tech startups between 2021 and 2024, up from $58bn over the previous four years. The US has more than 1,000 venture capital-backed companies working on "smarter, faster and cheaper" defence, says Dale Swartz from consultancy McKinsey. The types of technologies the defence upstarts are working on are many and varied, though autonomy and AI feature heavily.