All Ground, Connectivity & Operations

ATTISAT SA is a Greek registered company, founded in 1997 by a team of specialists in the field of satellite communications and perceptive investors. ATTISAT SA designs, develops, manufactures, and markets flat antennas for TVRO applications. Based on the same proven technology knowhow, planar antennas for VSAT applications, SOTM terminals, and Microsatellites are under development. Applicable frequency bands are Ku, Ka, and even V&Q bands. Design and development of VSAT networks, Wireless Microwave systems and secure voice, data and video distribution networks and systems are also included in its activities. The company is distributor of professional communication equipment for the Greek market. ATTISAT S.A also provides Research and Development activities to third parties, especially in the frame of Multime-dia Terminals and equipment. A team of highly qualified engineers and managers with experience in their fields of expertise are responsible for the company’s activities from research and development up to pro-duction and marketing.

Cloud Signals has developed a product bundle offering the transport network that connects the core net-work and the RAN (Radio Access Network) of the mobile network, services making use of the 5G stand-ards, and addressing 5G vertical markets (ubiquitous coverage, disaster relief, public safety require-ments, emergency response, remote sensor connectivity, broadcast service, etc.) as well as corresponding use cases. To support the broadest range of use cases, 5G needs to integrate within a comprehensive sys-tem of all available communication technologies, exploiting their strengths and values. Satellite networks are among the most mature communication technologies, having specific advantages in geographically distributed and dynamic networks. They provide highly efficient, effective, and expedient network deploy-ments, leveraging their intrinsic advantages in broadcasting capabilities, global coverage, reduced reliance on terrestrial infrastructure, and high security. Satellite networks are nowadays considered as part of the 5G use case deployments. Many use cases can be better and more rapidly served using an integrated 5G satellite-terrestrial network rather than relying on terrestrial-only solutions. These include providing com-munication services to remote areas and to rural and dense urban environments, like on-premises local networks, content distribution, content acquisition, highly distributed IoT networks, and private mobile and nomadic network deployments. Cloud Signals was founded by executives in the space and telecom industries and leverages the founders’ 20+ years of experience and resources to address innovative solu-tions and opportunities in satellite operations, telecommunication payloads, ESA, and EC projects, as well as the telecommunications markets in 4 continents.

EMTECH SPACE S.A., is a Greek company specializing in Modelling, Simulation & Validation (MSV), active in the research, development and commercialization of innovative space technology solutions. Delivers high-assurance, mission-critical software and engineering tools designed to address complex system requirements, combining institutional quality standards with agile engineering methodologies.

GRNET – National Infrastructures for Research and Technology is Greece’s national research and education network and a key public technology organisation operating under the Ministry of Digital Governance and Artificial Intelligence. It provides advanced networking, cloud, high-performance computing, data and digital infrastructure services to the research, education and public sectors, while also developing national capabilities in artificial intelligence, quantum communications and large-scale digital platforms. Within the space ecosystem, GRNET’s high-capacity networks, cloud and HPC infrastructure, cybersecurity expertise and support for data-intensive research are particularly relevant to Earth Observation processing, satellite-data exploitation, secure communications and other advanced space-enabled applications.

Hellas Sat is a satellite operator providing a range of satellite communication and connectivity solutions. Operating from the strategic orbital position of 39° East, its satellite fleet offers extensive coverage across Europe, the Middle East, and Southern Africa. Hellas Sat manages two state-of-the-art teleports in Greece and Cyprus, offering a comprehensive suite of services, including hosting, managed services, and disaster recovery. These facilities support the company’s mission to bridge connectivity gaps and provide tailored, satellite-enabled solutions. In recent years, Hellas Sat has diversified its services by expanding into data centre and cloud services, as well as developing groundbreaking technologies like laser communications through space. This strategic diversification aims to meet the evolving demands of the telecommunica-tions market and maintain the company’s competitive edge.

Intracom Defense S.A. (IDE) located in Koropi, Attica, Greece, is one of the largest electronic systems providers in the defense and security sector in Greece. IDE is a private company which designs, develops and manufactures State-of-the-Art (SotA) communications and electronic systems, unmanned systems, Command, Control and Communication systems (C3), missile electronics, testing equipment and advanced software applications. Moreover, the Company participates in joint multinational development and production programs in co-operation with major international defense systems manufacturers and research organizations.

The company invests annually a significant amount in Research and Technology programs to advance technological innovation. IDE collaborates and maintains strategic partnerships with internationally renowned companies with the purpose of jointly conducting research and co-developing new products and services in the aforementioned fields.

In order to facilitate the rapid design and development of technologically advanced, high-quality products and systems, IDE operates sophisticated Research and Development (R&D) Laboratories and Manufacturing Infrastructure within its facilities.

IDE is actively advancing its position in the space sector, leveraging a growing track record of ESA- and EU-funded R&D projects to build a mature technological footprint centered on SatCom and resilient communications. Moving beyond initial capabilities, the company strategically invests in specialized talent and cutting-edge facilities to address critical dual-use challenges. IDE’s core focus encompasses next-generation 5G/B5G/6G Non-Terrestrial Networks (NTN), robust connectivity, and solutions designed for operations in GNSS-denied environments. Complementing its domain engineering expertise, IDE has the capacity to offer comprehensive Assembly, Integration, and Testing (AIT) as well as specialized environmental testing, establishing itself as a key technological partner in the evolving space ecosystem.

The Institute of Accelerating Systems and Applications (IASA) is an interdisciplinary research institute in Athens affiliated with departments of the National and Kapodistrian University of Athens (NKUA) and the National Technical University of Athens (NTUA). Its research spans accelerator science and engineering, nuclear and particle physics, nuclear medicine and imaging, automated control, scientific computing, environmental physics, microwave engineering and telecommunications. Within the space ecosystem, IASA’s expertise is particularly relevant to particle and radiation physics, detector and instrumentation technologies, RF and microwave systems, advanced control and data-acquisition systems, scientific computing, and radiation-environment studies that can support space science, satellite payloads and space-system testing.

KNOWLEDGE S.A. is a Greek ICT and software development company based in Patras, specialising in advanced web applications, eGovernment platforms and integrated information systems for public authorities, regional development organisations, research and knowledge institutions, businesses and citizens. The company has extensive experience in the design, development, operation and support of large-scale digital systems, including the Greek General Commercial Registry (GEMI) and One Stop Shop services for business establishment, while also providing cloud-based platforms, tourism technologies and customised digital solutions. Within the space ecosystem, its capabilities in secure software platforms, data management, digital public services and large-scale systems integration are relevant to downstream applications, digital registries and space-enabled public services.

ODES SPACE is a Greek space-tech spin-out and member of ESA BIC Greece developing a unified Digital Mission Engineering and simulation platform for small-satellite missions. Its modular software suite supports mission analysis, system budgeting, RF interference assessment, subsystem simulation, software/hardware validation and operational preparation through a continuous Digital Twin environment. The technology builds on experience from the Greek National Small Satellite Programme and has already been applied in activities related to Hellenic Space Dawn, DUTHSAT-2, ERMIS and the Greek Earth Observation constellation, positioning ODES SPACE as a specialised provider of mission validation tools for the growing New Space ecosystem.

Planetek Hellas, a member of the D-Orbit Group, is a leading Greek company active in Earth Observation, geospatial intelligence, and software development for both satellites in orbit and their ground systems.

Founded in Athens in 2006, the company combines deep expertise in satellite data exploitation, geoinformation systems, and participation in major ESA and European Commission programmes.

Today, Planetek Hellas stands as a strategic pillar of the Greek space industry, contributing to Europe’s and Greece’s efforts to build the next generation of integrated space infrastructures and achieve operational autonomy in space.

The company’s expertise covers a wide spectrum of activities, including:

Ground Segment systems & SW, including PDGS;
Space mission design & operations;
In-orbit autonomy & on-board processing SW;
Design & operation of Spatial Data Infrastructures (SDI);
Advanced Earth Observation services for environmental monitoring, civil protection, defence & security, including Copernicus-based applications;
AI-powered analytics & governmental services;

Planetek Hellas is a trusted partner of the European Space Agency and the European Commission, playing key roles in missions and programmes such as OptiSat, the Greek National EO Constellation (AXIS 2&3), the ERMES Mission Control Software, and European initiatives like Copernicus (Emergency, Security, Land, Marine), EDF, and IRIS².

As part of the D-Orbit Group, Planetek Hellas contributes to building the European New Space ecosystem, linking Greek engineering and software excellence with European industrial capacity for the design, production, and operation of advanced satellite systems.

The company operates its own Satellite Command and Control Centre (C2) in Kifisia, Athens – a modern infrastructure serving as a national hub for satellite mission operations that supports both civilian and defence applications.

Through continuous innovation, research, and talent development, Planetek Hellas has become one of the most dynamic players in Greece’s and Europe’s space ecosystem, committed to turning satellite technology into operational value for society, government, and strategic autonomy. Planetek Hellas provides solution oriented services in the field of Geomatics, involving the use of EO data and systems for environmental & critical infrastructure monitoring, urban planning, civil protection and security.

Space Innovation Solutions SpaceIS aims to revolutionise satellite connectivity via its novel 3Dprinted multibeam antenna Over the next few years it is anticipated that a large number of satellite constellations will be orbiting Earth in nongeosynchronous orbit NGSO providing a wide range of broadband services The key feature that differentiates NGSO from GSO systems is that the ground terminal must track relatively fastmoving satellites as they transverse the visible sky and communication must be handed from one satellite to another SpaceIS can offer seamless satellite handover makebeforebreak with very low cost and efficient SWaP Size Weight and Power Its antenna can bend radio waves through its unique lenses creating beams that communicate with several satellites in different orbits and angles with no moving parts all at the same time

Space Hellas S.A. is a leading system integrator and digital solutions provider delivering integrated ICT, cybersecurity and telecommunications solutions to enterprises, government and defence organisations across Europe and the Middle East. Founded in 1985 and listed on the Athens Stock Exchange since 2000, the Group employs over 800 specialists (including SingularLogic) and holds 700+ certifications and accreditations at National, EU and NATO Secret level, and is registered in the Hellenic Ministry of Defence Defence-Manufacturers’ Record. It is certified to ISO 9001, ISO/IEC 27001, ISO 14001, ISO 20000, ISO 22301, ISO 27701, ISO 45001 and ISO 50001.

Headquartered in Athens, with branches in Thessaloniki, Patra, Heraklion, Ioannina, Farsala and Tripoli, and subsidiaries in Cyprus, Serbia, Malta and Jordan, Space Hellas reported a 2025 turnover of €152.9M and EBITDA of €18.3M.

In the space domain, Space Hellas designs and integrates secure satellite communication systems —including converged 5G/satcom and Non-Terrestrial Networks (NTN) — ground-segment infrastructure,Earth Observation downstream services, and space-cybersecurity solutions for defence, government and enterprise users. The company runs a ~€22M R&D portfolio spanning 34 active projects with 150+ partner organisations across 25+ countries, acting as coordinator, prime contractor or work-package leader in ESA (ARTES 4.0, 4S), Horizon Europe, Digital Europe and European Defence Fund programmes. Space Hellas is a founding member of the Hellenic Association of Space Industries (HASI) and a member of the si-Cluster.

TELETEL is a private Greek SW & HW design and development company actively working in the areas of space, defence and aeronautics. It has a long history of providing development services and products in the avionics, defence, and telecommunications sector. TELETEL works very closely with the European industry having provided SW & HW solutions to several reference companies. Its SW & Systems Engineering Departments are “Approved Development Houses” for THALES AIR DEFENCE, AIRBUS DEFENCE & SPACE, ESA, SPACEBEL, and HULD for SW & microelectronic subsystems, integrated solutions and end products. TELETEL is also involved in various R&D programs funded by the EU, ESA, EDA, NATO and industrial consortia.

WINGS ICT Solutions is a Greek technology company delivering end-to-end digital solutions that combine artificial intelligence, IoT, advanced wireless networks, big-data analytics and software/hardware platforms for sectors including environment, utilities, infrastructure, manufacturing and smart cities. Its space-related activities focus mainly on the downstream exploitation of space-generated data, combining satellite-derived information with AI and digital platforms to support environmental intelligence, infrastructure resilience, emergency response and other decision-support applications. WINGS is also a member of the Hellenic Association of Space Industry (HASI) and has publicly stated its ambition to contribute to the space economy by transforming space-generated data into trusted, actionable intelligence.