Threod Systems

Threod Systems is an Estonian defense-technology company based in Viimsi parish, Harju County, that designs and manufactures unmanned aircraft systems for military surveillance and target acquisition. The company builds VTOL fixed-wing UAVs engineered for stealth, endurance and reliability in battlefield conditions, supplying defense and government customers.

The product line centers on the Eos UAV family (Eos C and Eos D), long-range surveillance drones paired with the eOpic series of lightweight electro-optical payloads for high-performance imaging, and the Cata pneumatic launcher for rapid field deployment without a runway. Together these modules give defense operators an end-to-end reconnaissance system from launch to imaging.

1. Eos C and Eos D: VTOL fixed-wing UAVs for long-range surveillance and target acquisition.

2. eOpic payloads: lightweight electro-optical camera modules (eOpic-4, 5, 6, 8) for high-performance imaging.

3. Cata launcher: pneumatic aircraft launcher for rapid, runway-free field deployment.

4. VTOL design: vertical take-off and landing removes the need for a runway or catapult crew.

5. Battlefield-hardened build: airframes engineered for stealth, endurance and reliability.

6. End-to-end ISR: launcher, airframe and payload combine into one reconnaissance system.