Companies Kelluu Hydrogen-powered autonomous airships for long-endurance ISR and border surveillance. Products Drones Kelluu Airship → Hydrogen-powered autonomous airship designed for persistent long-endurance ISR, environmental monitoring, and border surveillance. Introduced 2020 Software Kelluu DATA Platform → Airship-fed ISR analytics platform producing 3D digital twins, change detection, and a NATO Common Operational Picture feed from modular sensor payloads. Introduced 2022