Crown Defence Oy
specialization:
Products
ONYKS™ SHIELD 300W
Software-Defined RF Detection and Jamming Platform.
Problem
Protocol-specific detection fails the moment an
adversary changes hardware or firmware. A
system that classifies protocol libraries is already
behind. Drone threats evolve faster than signature
databases.
Solution
ONYKS™ Shield classifies raw RF signatures — not
protocol libraries — so it cannot be evaded by
firmware updates or hardware changes. On
confirmed threat, the operator selectively jams
individual channels or activates full auto mode.
Fully remote-operable. IP65. 24/7 unattended
operation.
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ONYKS™ SONIC SENSE
Compact and Versatile Near-Field Acoustic Detection System for any threats from Drones to
Humans.
Problem
Acoustic threats — drones, approaching personnel,
vehicles — close undetected. Forward positions
lack early warning without power infrastructure or
active emissions.
Solution
ONYKS™ Sonic Sense deploys in seconds: palm-
sized, battery-powered, zero infrastructure.
Passive acoustic detection at up to 1 km — no
emissions, no RF footprint, undetectable to
adversary.
About
Crown Defence Oy
THIS COMPANY OFFERS SOLUTIONS FOR
Crown Defence Oy is a Finnish defence company established in 2023, focused on delivering modern tactical equipment and capability-enhancing solutions for military and security organisations. The company operates in close cooperation with Nordic and international partners to provide reliable, field-ready products tailored to contemporary operational needs.
With a strong emphasis on responsiveness, customer support, and practical defence applications, Crown Defence supports armed forces and security actors with equipment and solutions designed for demanding environments and evolving security challenges.
Additional info
Based in Espoo, Finland, Crown Defence operates within the Nordic defence ecosystem, supporting cooperation between Finnish industry and international partners. The company emphasises flexibility, fast response capability, and long-term collaboration with defence stakeholders.
Crown Defence’s participation at SSD Expo reflects its commitment to strengthening defence partnerships in the Baltic Sea region and contributing to European security cooperation.
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Profile visits
Contact us
Kati Kaarila
COO
Ronja Ala-Paavola
Assistant
Crown Defence Oy
Tekniikantie 12, Espoo 02150
+358 50 337 9364
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