Celtonn

Celtonn Limited is a rapidly growing Irish space and telecom hardware company focused on developing high-performance millimetre-wave components and semiconductor systems for aerospace, satellite communications and next-generation terrestrial networks. Based in Limerick, the company combines deep RF/mmWave engineering expertise with semiconductor design and manufacturing scalability to meet the escalating demands of space- and ground-based connectivity infrastructure.

A key strength of Celtonn is its recently awarded contract from the European Space Agency (ESA) to develop a high-linearity, low-noise amplifier (LNA) for the V-band feeder uplink—an essential component for next-generation satellite communications operating in 40-50 GHz and above. This work demonstrates Celtonn’s ability to deliver space-qualified semiconductor hardware that supports ultra-high-throughput, low-latency links for satellite payloads and constellations.

Beyond space, Celtonn’s technology is engineered for the terrestrial 6G era: their D-band (110-170 GHz) hardware, mmWave modules and advanced manufacturing infrastructure target ultra-fast wireless backhaul, high-density data centre interconnects and aerospace radar systems. Their vertically integrated approach—spanning design, test and production—provides partners with a single-source supplier of high-frequency RF/mmWave subsystems optimised for SWaP-sensitive environments.

At Space Tech Expo Bremen 2025, Celtonn invites satellite manufacturers, launcher developers, system integrators and telecom infrastructure players to explore collaboration around its mmWave component platforms, scalable production capability and dual-use system applications. By bridging space-grade hardware design with terrestrial network innovation, Celtonn offers a compelling value proposition for organisations aiming to deploy the next wave of high-frequency, high-bandwidth communication systems worldwide.