CyberOwl helps asset operators in the maritime and critical national infrastructure sectors gain visibility, cyber security and cyber compliance of systems on their distributed, remote assets. We provide technologies, a managed service and specific cyber security advisory services to support the asset operator. Our technologies provide near-real-time visibility of the behaviours of assets and their communication patterns. They are deployed to identify and inventory assets on the IT and OT networks of these operational platforms. They detect and raise early warning of cyber attack tactics, techniques and procedures; identify anomalous and suspicious activity; and monitor for non-compliance with cyber security policies. These are delivered through a modular, distributed architecture that is optimised for environments facing the challenges of intermittent connectivity, bandwidth constraints and the need for remote management. Our managed service provides assurance and support to asset operators with any level of cyber expertise. We support security operations through alert verification, triaging and providing guidance on appropriate cyber incident response actions. CyberOwl was shortlisted for the Lloyds Science of Risk Prize, selected into the first GCHQ Cyber Accelerator Programme and is part of the UK Government's centre of excellence for cyber security innovation - the London Office for Rapid Cybersecurity Advancement (LORCA).