Izhevskiy Radiozavod Oao, IRZ OAO Manufacturer of on-board electronic equipment of flight control and monitoring systems for space vehicles
Jotron As Jotron develops and manufactures communication systems for all types of ships and platforms.
Kathrein-Werke KG Manufacturer of antenna systems and electronic components in the telecommunications technology sector
Kinetic Technology International Pty. Ltd. Cospas-Sarsat approved beacon manufacturer. Many product lines without GNSS
