All Ecosystem Services in Marousi
5G Ventures S.A. is a Greek investment-management company and a direct subsidiary of the Hellenic Corporation of Assets and Participations (HCAP), established to manage the Phaistos Investment Fund, a €101 million fund dedicated to companies developing 5G-related technologies, products and services in Greece. Its investment strategy spans advanced digital infrastructure, connectivity, AI, IoT and other 5G-enabled applications, and it has developed a particularly strong link with the space sector through investments in companies using satellite infrastructure to extend next-generation connectivity. Notable space-related investments include OQ Technology, which is building a hybrid terrestrial–LEO satellite 5G/NB-IoT network and has established OQ Technology Hellas in Greece, and D-Orbit, a leading space-logistics company providing in-orbit satellite transportation, deployment, hosted-payload and space-cloud services; both investments strengthen Greece’s capabilities in satellite communications, non-terrestrial networks and advanced space technologies.
The Hellenic Telecommunications & Post Commission (EETT) is Greece’s independent regulatory authority for electronic communications and postal services and also exercises competition-law powers in these sectors. EETT manages and monitors the national radio-frequency spectrum, grants spectrum rights of use and regulates satellite services involving communications between terrestrial and space stations. Its space-related role includes licensing and supervision of satellite communications, spectrum coordination and interference monitoring, and operation and planned expansion of the EOS–ΗΩΣ Satellite Spectrum Monitoring System (SSMS), which strengthens Greece’s capability to monitor satellite-frequency use and protect satellite communications from harmful interference.



