OSL has long supported major airports and national-infrastructure sites with drone detection and management in complex civil environments. Terma brings decades of defence and security experience through radar and command-and-control systems supplied to navies, air-defence units, and critical-infrastructure operators.
The merger brings civil and defence practices together in a single end-to-end C-UAS solution designed to detect, track, classify, decide, and respond to threats within seconds. Their integrated system combines defence-grade sensors, AI analytics, and operational expertise in an open, modular ecosystem that supports third-party sensors and effectors.
Henriette H. Thygesen, CEO of Terma, said: “OSL’s operational performance – from years of protecting critical infrastructure at Heathrow and other major sites – shows it delivers where it matters most. Paired with Terma’s multi-domain capacity, built on decades of delivering situational awareness and defense-grade command-and-control, and further informed by partnerships in Ukraine, we now offer one of the most comprehensive C-UAS suites on the market, helping to set a higher standard for protecting people, airspace, and critical infrastructure.” She added: “This is not only about Denmark here and now; it delivers a strong, comprehensive C-UAS solution that can contribute to European flagship projects such as the proposed EU drone initiative.”
For airport authorities, critical-infrastructure operators, and defence customers, the combined product aims to provide a single integrated C-UAS picture with rapid deployment and immediate operational effect. Both companies expect the system to support customers from tactical to strategic levels.
Mark Legh-Smith, CEO of OSL, said: “Joining Terma is an extraordinary opportunity for OSL and our customers. Terma’s multi-domain expertise together with our C-UAS platform and agility create unmatched depth of capability – from sensor to decision to response. It means faster detection, smarter classification, and precisely coordinated action. It’s the perfect combination of innovation and assurance.” He said the partnership will enable scalable solutions across both civilian and defence markets.
Terma and OSL plan to serve customers worldwide, combining OSL’s operational experience with Terma’s technology base and global reach. MW&L Capital Partners acted as exclusive financial advisor, with Kromann Reumert providing legal advice to Terma, supported by Addleshaw Goddard as local counsel and Deloitte as tax advisor.




























