• Open topic on driving innovation uptake of disaster risk solutions · HORIZON-CL3-2026-01-DRS-04
• Open topic on efficient border surveillance and maritime security · HORIZON-CL3-2025-01-BM-01
• Open topic on enhanced prevention, detection and deterrence of societal issues related to various forms of crime · HORIZON-CL3-2027-01-FCT-03
• Open topic on improved intelligence picture and enhanced prevention, detection and deterrence of various forms of organised crime · HORIZON-CL3-2025-01-FCT-03
• Open topic on Improving disaster risk management and governance to ensure self-sufficiency and sustainability of operations in support of enhanced resilience · HORIZON-CL3-2025-01-DRS-02
• Open topic on increasing security of citizens against terrorism, including in public spaces · HORIZON-CL3-2027-01-FCT-04
• Open topic on modern information and forensic evidence analysis and on frontline policing · HORIZON-CL3-2025-01-FCT-01
• Open topic on preventing and countering the misuse of emerging technologies for criminal purposes, including issues related to lawful access to data · HORIZON-CL3-2026-01-FCT-02
• Open topic on prevention, detection and deterrence of various forms of crime and terrorism through an enhanced understanding of the related societal issues · HORIZON-CL3-2025-01-FCT-02
• Open topic on reinvigorating and shielding European democracy · HORIZON-CL2-2027-02-DEMOCRACY-09-two-stage
• Open topic on research and innovation for effective management of EU external borders that promotes fundamental rights and EU values · HORIZON-CL3-2027-01-BM-01
• Open topic on secured and facilitated crossing of external borders · HORIZON-CL3-2025-01-BM-02
• Open topic on supporting disruptive technological innovations for civil security · HORIZON-CL3-2026-01-SSRI-01
• Open topic on testing / validating tools, technologies and data used in cross-border prevention, preparedness and responses to climate extreme and geological events and chemical, biological or radiological emergency threats · HORIZON-CL3-2025-01-DRS-03
• Open topic: Boosting organic farming for a competitive, sustainable and resilient farming sector · HORIZON-CL6-2026-02-FARM2FORK-02-two-stage
• Open topic: Develop Earth Intelligence solutions using environmental observations and state-of-the-art AI for sustainable competitiveness and policy making · HORIZON-CL6-2026-03-GOVERNANCE-01-two-stage
• Open topic: Impact-driven research on realising the full potential of cultural heritage, arts and cultural and creative industries · HORIZON-CL2-2027-02-HERITAGE-09-two-stage
• Open topic: Improving the competitiveness of the agricultural sector by enhancing the efficient and sustainable use of agricultural production factors · HORIZON-CL6-2026-02-FARM2FORK-01-two-stage
• Open topic: Innovating for on-farm post-harvest operations, storage and transformation of crops into food and non-food products · HORIZON-CL6-2025-02-FARM2FORK-02-two-stage
• Open topic: Innovative solutions for the European Water Resilience Strategy · HORIZON-CL6-2027-02-CLIMATE-01-two-stage
• Open Topic: Innovative solutions for the sustainable and circular transformation of SMEs · HORIZON-CL6-2025-01-CIRCBIO-01-two-stage
• Open topic: Strengthen Europe's social model and sustainable competitiveness through productivity · HORIZON-CL2-2026-01-TRANSFO-02
• Open topic: Uncovering the causes of specific species’ rapid decline and exploring actionable solutions · HORIZON-CL6-2026-01-BIODIV-02-two-stage
• Open topic: Using the Circular Cities and Regions Initiative to strengthen urban manufacturing in support of the Clean Industrial Deal · HORIZON-CL6-2026-01-CIRCBIO-02-two-stage
• Open topic: Using the Circular Cities and Regions Initiative to strengthen urban manufacturing in support of the Clean Industrial Deal · HORIZON-CL6-2027-01-CIRCBIO-02-two-stage
• Open-source EDA tools development · HORIZON-JU-CHIPS-2025-IA-EDA-two-stage
• Operability and standardisation in response to biological toxin incidents · HORIZON-CL3-2023-DRS-01-03
• Operating grants for 2026 under Framework Partnership Agreements in the area of facilitating and supporting judicial cooperation in civil and/or criminal matters and/or in the area of access to justice · JUST-2025-JCOO-JACC-OG-SGA
• Operation, Performance and Maintenance of PV Systems · HORIZON-CL5-2023-D3-02-13
• Operational automation to support multimodal freight transport · HORIZON-CL5-2023-D6-01-07
• Operational digital platforms – Works · CEF-DIG-2025-PLATFORMS-WORKS
• Operational stakeholders’ group to support the deployment of Clean Aviation aircraft concepts and technologies · HORIZON-JU-CLEAN-AVIATION-2026-04-CSA-01
• Operationalisation of bioeconomy sustainability principles · HORIZON-CL6-2025-03-GOVERNANCE-04
• Optimal combination of low embodied carbon construction products, technical building systems and circularity principles for climate neutral buildings (Built4People Partnership) · HORIZON-CL5-2026-02-D4-05
• Optimal integrated onboard renewable energy solutions, by considering Wind-Assisted Propulsion Systems (ZEWT Partnership) · HORIZON-CL5-2025-04-D5-15
• Optimisation of thermal energy flows in the process industry (Processes4Planet partnership) (IA) · HORIZON-CL4-2024-TWIN-TRANSITION-01-32
• Optimise the usage of resources in a circular economy (RIA) (Processes4Planet and Clean Steel partnerships) · HORIZON-CL4-2026-01-MAT-PROD-04
• Optimised and integrated wood-based value chains · HORIZON-JU-CBE-2023-IAFlag-01
• Optimised forest-based value chains for high value applications and improved forest management · HORIZON-JU-CBE-2023-R-02
• Optimised/Alternative Silicon Growth Technologies (from either liquid or gaseous phase) for PV Applications (EUPI-PV Partnership) · HORIZON-CL5-2025-02-D3-09
• Optimising the manufacturing of Advanced Therapy Medicinal Products (ATMPs) · HORIZON-HLTH-2025-01-IND-01
• Optimising the water-nutrient-energy nexus for sustainable and climate smart agriculture in Africa (FNSSA) · HORIZON-CL6-2027-02-FARM2FORK-02-two-stage
• Optronics detector technologies · EDF-2023-RA-SENS-OPTD
• Organic farming thematic networks to compile and share knowledge ready for practice · HORIZON-CL6-2024-GOVERNANCE-01-10
• Organisation of high-quality master or post-graduate courses in conference interpreting 2026-2027 · EP-LINC-SUBV-2026-CONF-INT-01
• Organisation of high-quality master, post-graduate or bachelor courses offering conference interpreter training in Ukrainian, Montenegrin, and Albanian (2026-2027) · EP-LINC-SUBV-2026-CONF-INT-03
• Organised crime and drug trafficking · ISF-2026-TF2-AG-OCDT
• Overcoming the barriers for scaling up circular water management in agriculture · HORIZON-CL6-2025-02-FARM2FORK-03
• Palaeoclimate science for a better understanding of Earth system dynamics · HORIZON-CL5-2027-01-D1-08
• Paleoclimate science for a better understanding of the short- to long-term evolution of the Earth system · HORIZON-CL5-2024-D1-01-03
• Paludiculture: large-scale demonstrations · HORIZON-CL6-2024-CLIMATE-01-3
• Pandemic preparedness and response: Adaptive platform trials for pandemic preparedness · HORIZON-HLTH-2024-DISEASE-03-11-two-stage
• Pandemic preparedness and response: Host-pathogen interactions of infectious diseases with epidemic potential · HORIZON-HLTH-2024-DISEASE-08-20
• Pandemic preparedness and response: Maintaining the European partnership for pandemic preparedness · HORIZON-HLTH-2024-DISEASE-08-12
• Participation and empowerment of Arctic coastal, local, and indigenous communities in environmental decision-making · HORIZON-CL6-2024-COMMUNITIES-01-3
• Participatory research on the health of communities in contact with polluted soils · HORIZON-MISS-2027-05-SOIL-04-two-stage
• Partitioning and transmutation of minor actinides towards industrial applications · HORIZON-EURATOM-2023-NRT-01-05
• Partnerships for Cooperation - Cooperation Partnerships in the field of education and training submitted by European NGOs · ERASMUS-EDU-2026-PCOOP-ENGO
• Partnerships for Cooperation - Cooperation Partnerships in the field of Youth submitted by European NGOs 2026 · ERASMUS-YOUTH-2026-PCOOP-ENGO
• Partnerships for Excellence: European Universities – European Degree exploratory action · ERASMUS-EDU-2025-PE-EUED
• Pathways to Synergies · HORIZON-WIDERA-2023-ACCESS-04-01
• Per- and Poly-fluoroalkyl substance (PFAS) exposure, emissions, and end of life management in the healthcare sector · HORIZON-JU-IHI-2025-10-03-two-stage
• Perform EU · CREA-CULT-2026-PERFORM-EU
• Personalised approaches to reduce risks from Adverse Drug Reactions due to administration of multiple medications · HORIZON-HLTH-2027-01-CARE-02
• Personalised prevention of non-communicable diseases - addressing areas of unmet needs using multiple data sources · HORIZON-HLTH-2024-STAYHLTH-01-05-two-stage
• Persons with disabilities: opportunities for labour inclusion and social protection through the life course · HORIZON-CL2-2027-01-TRANSFO-07
• Phase 1 including first-in-human clinical trials to test biomarker-guided medicines or multi-modal treatment interventions for patients with rare or very rare cancers or cancer subtypes · HORIZON-MISS-2027-02-CANCER-03
• Phase out fossil fuel in energy intensive industries through the efficient integration of renewable energy sources · HORIZON-CL5-2026-02-D4-06
• Phortify Grants for Master Thesis Project - Pilot Call · CASCADE-12905
• Phortify Internship (Traineeship) Grants - Pilot Call · CASCADE-12902
• Phortify Mobility Grants - Pilot Call · CASCADE-12904
• Photonics Innovation Factory for Europe (Photonics Partnership) (IA) · HORIZON-CL4-2024-DIGITAL-EMERGING-01-55
• Physical and cognitive augmentation in advanced manufacturing (Made in Europe Partnership) (RIA) · HORIZON-CL4-INDUSTRY-2025-01-TWIN-TRANSITION-02
• Phyto-management; curing soil with industrial crops, utilising contaminated and saline land for industrial crop production · HORIZON-JU-CBE-2023-R-01
• Pillar I: Accelerating open access and research assessment reforms in ERA · HORIZON-WIDERA-2026-06-ERA-01
• Pillar I: Building institutional capacities for ethical, equitable, open, and inclusive ERA · HORIZON-WIDERA-2026-06-ERA-02
• Pillar I: Facilitating development of institutional open access policies through the retention of intellectual property rights · HORIZON-WIDERA-2027-05-ERA-01
• Pillar II: Piloting innovative approaches to support academic startups and spinoffs · HORIZON-WIDERA-2026-06-ERA-04
• Pillar II: Strengthening ecosystems for open, ethical, and sustainable ERA · HORIZON-WIDERA-2026-06-ERA-03
• Pillar II: Talent ecosystems for attractive early research careers · HORIZON-WIDERA-2027-05-ERA-02
• Pillar III: European Citizens' Hackathon Championship · HORIZON-WIDERA-2026-06-ERA-06
• Pillar III: Fostering citizen engagement for more responsible and democratic R&I · HORIZON-WIDERA-2026-06-ERA-05
• Pillar III: Promoting public engagement in R&I and scientific literacy · HORIZON-WIDERA-2027-05-ERA-04
• Pillar III: Science comes to town 2028 · HORIZON-WIDERA-2026-06-ERA-07
• Pillar III: Science comes to town 2029 · HORIZON-WIDERA-2027-05-ERA-03
• Pillar IV: Advancing Knowledge for ERA · HORIZON-WIDERA-2026-06-ERA-08
• Pillar IV: Upgrading the EU’s independent knowledge on China's Science, Technology and Innovation system · HORIZON-WIDERA-2027-05-ERA-05
• Pilot access schemes to Technology Infrastructures for European startups, scaleups and innovative SMEs (CSA) · HORIZON-CL4-2026-01-MAT-PROD-45
• Pilot access schemes to Technology Infrastructures for European startups, scaleups and innovative SMEs (CSA) · HORIZON-CL4-2027-01-MAT-PROD-47
• Pilot actions for follow-on funding: Leveraging EU-funded collaborative research in regenerative medicine · HORIZON-HLTH-2026-01-TOOL-05
• Pilot Federation  · DIGITAL-JU-CHIPS-2026-SKILLS-PF-SG
• Pilot initiatives on Technology Infrastructures (CSA) · HORIZON-CL4-INDUSTRY-2025-01-HUMAN-64
• Pilot line(s) for 2D materials-based devices (RIA) · HORIZON-CL4-2024-DIGITAL-EMERGING-01-31
• Piloting emerging Smart IoT Platforms and decentralized intelligence (IA) · HORIZON-CL4-2024-DATA-01-03
• Pioneering Destination Earth for a Sustainable Future: Large-Scale Pilots and Demonstrators · HORIZON-INFRA-2027-TECH-01-02
• Platform Building, standardisation and Up-scaling of the ‘Cloud-Edge-IoT’ Solutions (Horizontal Activities - CSA) · HORIZON-CL4-2024-DATA-01-05
• Platforms and end-products · EDF-EDIP-P-2027-LS-IRA-PE
• Policy coordination to support all aspects of inclusive Gender Equality Plans and policies in the ERA · HORIZON-WIDERA-2024-ERA-01-10
• Policy recommendations from socio-economic impacts of loneliness in Europe · HORIZON-CL2-2024-TRANSFORMATIONS-01-01
• Political participation in multilingual spaces · HORIZON-CL2-2024-DEMOCRACY-01-10