Radionix LLC

Radionix LLC is a Kyiv-based Ukrainian defence-electronics company founded in 2006, reported to have grown from around ten staff to more than 250 across three production sites. It develops radar, navigation and radio-communication systems, with a public profile spanning airborne electronic-warfare jammers — the Omut-K and the more advanced Omut-KM self-protection pod, which defends aircraft against intercept missiles and homing seeker heads — and multifunction radars such as Esmerelda, offered to replace Soviet-era sets in MiG-29 and Su-27 upgrades.

The company also designs a family of optical, passive-radar and active X- and Ka-band missile seeker heads, work that places it close to several Ukrainian strike and air-defence programmes; reporting has credited Radionix with seeker development for the Neptune missile and an active radar seeker for Ukrainian surface-to-air missiles. At the World Defence Show 2026 in Saudi Arabia it presented Shershen, a modular short-range air-defence system that is not tied to a single radar and has been tested with five missile types — Soviet-era, foreign and Ukrainian-made — and is marketed as several times cheaper than Western equivalents. It also supplies a compact 3-kilogram X-band synthetic-aperture radar, reaching 0.3–0.5-metre resolution in any weather, adopted on Skyeton reconnaissance drones.

As a member of Ukraine’s defence-industry association, Radionix has pursued international partnerships to scale, including a March 2025 memorandum with Sweden’s Saab on joint sensors and defence electronics, a 2026 cooperation agreement with Spain’s Sener Group on rocketry and air defence, and earlier outreach to Turkish defence firms. Direct evidence of frontline combat use of specific Radionix products was not found, and no official company website could be verified.