| Topic | Project acronym | Project title | Project fact sheet (CORDIS) |
| Heading 1 - Accessing Space |
| HORIZON-CL4-2025-02-SPACE-11: CSA on access to European spaceports | AEAAS | From EU Soil to Outer Space: Regulation as an enabler for Spaceports | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-12: Digital solutions for autonomy for space transportation systems, design and simulation tools – Digital enablers and building blocks | REACT | REentry Capsule FAult Detection, Identification and Fault Tolerant Guidance and ConTrol | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-13: Digital solutions for autonomy for space transportation systems, design and simulation tools – targeting demonstration | SERENITY | Space Launcher Advanced Monitoring Systems | CORDIS page |
| Heading 2 - Acting in Space |
| HORIZON-CL4-2025-02-SPACE-21: ISOS Pilot Mission Detailed Design – Servicing component | EROSS SC | European Robotic Orbital Support Services – Servicing Component | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-21: ISOS Pilot Mission Detailed Design – Servicing component | SCOPE | Servicing, Connectivity, On-orbit Propulsion & Engineering | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-22: ISOS Pilot Mission Detailed Design – HOST | EPRIME | European Platform for Robotic In-orbit Modular Experimentation | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-23: ISOS Pilot Mission Detailed Design – Logistics component | ASTRALIS | Advanced Space Transfer & Resupply Architecture for Logistics in ISOS-environment | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-24: ISOS Pilot Mission Detailed Design – satAPPs component | JANUS | The gateway to SynApps - cognitive, resilient, and autonomous In-Space services | CORDIS page * |
| HORIZON-CL4-2025-02-SPACE-24: ISOS Pilot Mission Detailed Design – satAPPs component | smartCASE | smart Configurable Adaptive Spacecraft and Spacecraft Extensions | CORDIS page |
| Heading 3 - Using Space on Earth – Telecommunications and Earth Observation |
| HORIZON-CL4-2025-02-SPACE-31: Digital enablers and building blocks for Earth Observation and Satellite telecommunication for Space solutions | ARGOS | Artificial intelligence for Real-time Guidance of Onboard SAR applications | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-31: Digital enablers and building blocks for Earth Observation and Satellite telecommunication for Space solutions | INTOPTEO | Integrated Optoelectronic Oscillators for Earth Observation and Satellite Communications | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-32: Preparing demonstration missions for collaborative Earth Observation and Satellite telecommunication for Space solutions | ENTENTE | Integrated Terrestrial/Non-terrestrial Networks, Multi-connectivity Solutions and Terminals | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-32: Preparing demonstration missions for collaborative Earth Observation and Satellite telecommunication for Space solutions | ORION | Orbital Resource Interoperability and Orchestration Network | CORDIS page * |
| HORIZON-CL4-2025-02-SPACE-32: Preparing demonstration missions for collaborative Earth Observation and Satellite telecommunication for Space solutions | THEOSCOPE | Advanced Space Telescope, GPU‑based On‑board Processing Hardware & AI Processing For Climate-change Mitigation EO Services | CORDIS page |
| Heading 4 - Using Space on Earth – Earth Observation |
| HORIZON-CL4-2025-02-SPACE-41: Copernicus Climate Change Service (C3S) evolution: new and innovative processing and methods for future Sentinels and other satellites for reanalyses | CHERRI | Climate Hazards Enhanced Reanalyses & Reasoning with AI | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-42: Copernicus Atmosphere Monitoring Service (CAMS) evolution: improved soil-vegetation-atmosphere modelling and data assimilation of atmospheric constituents | CAMBAS | CAMs for Biosphere Atmosphere exchangeS | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-43: Copernicus Anthropogenic CO₂ Emissions Monitoring & Verification Support (CO2MVS) capacity: new and innovative methods to estimate the impact of fires on vegetation and related carbon fluxes | CoFlame | Copernicus Fire and Land-Atmosphere Modelling of Emissions | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-44: Copernicus Marine Environment Monitoring Service (CMEMS) evolution: new and innovative ocean data assimilation techniques | COMEDI | COpernicus Marine services with Enhanced Data assimilation and improved Interoperability | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-45: Supporting the AI/ML digital transition of Copernicus Services | PROTEUS | The Copernicus Agent for Next-Generation Environmental Intelligence | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-46: Innovative Earth observation services in support of maritime litter detection and ship source pollution policies | POSEIDON | Pollution Observation from Space: Environmental Imaging for Detections in Oceans & Nearshore | CORDIS page |
| Heading 8 - Boosting Space through non-dependence of the EU for key critical space technologies |
| HORIZON-CL4-2025-02-SPACE-71: Space Critical EEE Components for EU non-dependence – RISC-V Microprocessor on 7nm | COSMIC7 | Critical Onboard Space Microprocessors for Independent Capabilities on 7 nm | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-72: Space Critical Equipment and Related Technologies for EU non-dependence – Chip Scale Atomic Clocks and Solar Cells ** | HALLEY | Highly efficient space solAr ceLL for European non-dependencY | CORDIS page * |
| HORIZON-CL4-2025-02-SPACE-73: Space Critical EEE Components for EU non-dependence – Connectors | CONNCERTO | AdvanCed RF and high-speed intercONNeCts for futurE boaRd-to-board space soluTiOns | CORDIS page |
| HORIZON-CL4-2025-02-SPACE-74: Space Critical EEE Components for EU non-dependence – Advanced Packages and Memories *** | SUPERPACS | Sustainable production line delivering advanced packaging for space missions | CORDIS page |
| Heading 9 - Boosting Space through international cooperation |
| HORIZON-CL4-2025-02-SPACE-81: EU-Japan cooperation on the exploitation of Quantum Space Gravimetry data | FEATS-G | Quantifying the Potential of Quantum Space Gravimetry | CORDIS page |
