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    Funds security research: cybersecurity, infrastructure protection, border management, disaster resilience and fighting crime and terrorism.

    Open calls, soonest deadline first

    Approaches and tools for security in software and hardware development and assessmentHORIZON-CL3-2026-02-CS-ECCC-01Advanced cryptographic schemes and High-Assurance high-speed cryptographic implementationsHORIZON-CL3-2026-02-CS-ECCC-03Enhancing the Security, Privacy and Robustness of AI Models and Systems (SecureAI)HORIZON-CL3-2026-02-CS-ECCC-02Open topic on driving innovation uptake of disaster risk solutionsHORIZON-CL3-2026-01-DRS-04Improving capabilities of law enforcement to counter climate-related challengesHORIZON-CL3-2026-01-FCT-01Prevention and mitigation of misuse of synthetic biology for bioterrorism purposesHORIZON-CL3-2026-01-FCT-06Targeted innovative capabilities for the resilience of critical entities to natural and human-induced disasters, including hybrid scenariosHORIZON-CL3-2026-01-INFRA-03Climate security and civil preparedness – new ways to develop pre- and post-crisis climate-change related scenarios for a more resilient EuropeHORIZON-CL3-2026-01-DRS-05Development of innovative tools, processes, equipment and technologies through responses to disasters and emergencies for search and rescue in hazardous conditionsHORIZON-CL3-2026-01-DRS-03Security challenges of the green transition in urban und peri urban areasHORIZON-CL3-2026-01-INFRA-02Demand-led innovation in securityHORIZON-CL3-2026-01-SSRI-02Development of ecosystem and next-generation capabilities for a secured European Critical Communication System in civil securityHORIZON-CL3-2026-01-SSRI-04Multi-hazard approach and cumulative / cascading impactsHORIZON-CL3-2026-01-DRS-02Tools and processes to support stress tests of critical infrastructureHORIZON-CL3-2026-01-INFRA-01Enhancing the security of citizens against terrorism and lone-actor violence in confined spaces such as schoolsHORIZON-CL3-2026-01-FCT-05Missing persons: prevention and investigationHORIZON-CL3-2026-01-FCT-03Crime prevention approaches, online and off-line, tackling the nexus between addictions and crimeHORIZON-CL3-2026-01-FCT-04Public procurement of innovation for securityHORIZON-CL3-2026-01-SSRI-03Open topic on supporting disruptive technological innovations for civil securityHORIZON-CL3-2026-01-SSRI-01Accessible and available travel facilitationHORIZON-CL3-2026-01-BM-02

    The 20 closing soonest of 45 — filter the full table ›

    Questions founders ask about Horizon Europe Cluster 3

    When is the next deadline under Horizon Europe Cluster 3?

    15 Sep 2026, for Approaches and tools for security in software and hardware development and assessment.

    Can a single company apply to Horizon Europe Cluster 3, or is a consortium required?

    45 of the 45 open calls under Horizon Europe Cluster 3 require a consortium.

    How much does Horizon Europe Cluster 3 award per project?

    The largest call open now awards €7.8M.

    Other programmes and countries

    Horizon EuropeEuropean Innovation Council (EIC)European Institute of Innovation and Technology (EIT)Horizon Europe Cluster 4 — Digital, Industry and SpaceHorizon Europe Cluster 5 — Climate, Energy and MobilityHorizon Europe Cluster 6 — Food, Bioeconomy and EnvironmentHorizon Europe Cluster 1 — HealthHorizon Europe — EU MissionsDigital Europe ProgrammeLIFE ProgrammeEuropean Defence FundEurostarsItalyThe United KingdomThe NetherlandsPortugalSwedenFranceGermanySpainBelgiumIrelandFinland

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