Horizon Europe

Horizon Europe is the European Union's flagship research and innovation funding programme for the period 2021-2027, established by Regulation (EU) 2021/695. With a total budget of EUR 95.5 billion, it is the largest transnational research and innovation programme in the world. Horizon Europe funds collaborative research, breakthrough innovation, and researcher mobility across all scientific disciplines, from fundamental physics to climate adaptation, from digital technologies to social sciences. It is the successor to Horizon 2020 (2014-2020, EUR 77 billion) and the ninth EU Framework Programme for Research and Innovation.

How It Works

Horizon Europe operates through a structured architecture of three pillars and a set of horizontal activities, each addressing different stages and types of research and innovation.

Pillar I: Excellent Science (EUR 25 billion). This pillar funds frontier research driven by scientific curiosity, researcher mobility, and world-class research infrastructures. It comprises three main instruments:

The European Research Council (ERC), which funds individual investigators pursuing groundbreaking research across all fields.
Marie Sklodowska-Curie Actions (MSCA), which fund researcher training, mobility, and career development through doctoral networks, postdoctoral fellowships, and staff exchanges.
Research Infrastructures, which fund access to and development of pan-European research facilities.

Pillar II: Global Challenges and European Industrial Competitiveness (EUR 53.5 billion). This is the largest pillar, organized into six thematic clusters that address societal challenges and industrial competitiveness:

Cluster 1: Health
Cluster 2: Culture, Creativity, and Inclusive Society
Cluster 3: Civil Security for Society
Cluster 4: Digital, Industry, and Space
Cluster 5: Climate, Energy, and Mobility
Cluster 6: Food, Bioeconomy, Natural Resources, Agriculture, and Environment

Each cluster publishes annual or biennial work programmes containing specific call topics. Proposals for Research and Innovation Actions (RIA), Innovation Actions (IA), and Coordination and Support Actions (CSA) are submitted in response to these topics. Typical consortia include 5-15 partners from at least three different EU Member States or Associated Countries.

Pillar III: Innovative Europe (EUR 13.6 billion). This pillar focuses on translating research into market-ready innovations. It includes:

The European Innovation Council (EIC), which provides grants and equity investments to high-risk, high-impact innovators, particularly startups and SMEs.
The European Institute of Innovation and Technology (EIT), which operates Knowledge and Innovation Communities (KICs) bridging education, research, and business.
European Innovation Ecosystems, which strengthen national and regional innovation capacity.

Horizontal Activities. These include widening participation and strengthening the European Research Area (ERA), reforming research assessment, and promoting open science.

The funding cycle follows a standard process: the European Commission publishes work programmes with specific call topics, each defining the scope, budget, expected outcomes, and evaluation criteria. Applicants (typically consortia of universities, research centers, companies, and other organizations) prepare proposals and submit them through the EU Funding & Tenders Portal. Proposals are evaluated by independent expert panels against the criteria of Excellence, Impact, and Implementation Quality. Successful proposals enter grant agreement preparation, and projects typically run for 36-48 months.

Legal Framework

Regulation (EU) 2021/695 is the Horizon Europe Regulation, establishing the programme's objectives, structure, budget, and rules for participation and dissemination. Key provisions include:

Article 2 defines key concepts including research and innovation actions, the Technology Readiness Level scale, and the principles of open access and open science.
Articles 6-12 define the three pillars, their specific objectives, and the budget allocations.
Article 18 sets out the funding rates: 100% for RIAs, CSAs, and ERC grants; 70% for IAs (for-profit entities) and 100% for non-profit entities in IAs.
Article 29 governs the evaluation of proposals, mandating independent expert evaluation against the criteria of Excellence, Impact, and Quality and Efficiency of the Implementation.
Article 35 establishes open access requirements: all peer-reviewed publications must be openly available (immediate open access), and research data must follow FAIR principles (Findable, Accessible, Interoperable, Reusable).

Regulation (EU) 2021/694 (the Specific Programme) provides additional detail on the implementation of each pillar, including the role of programme committees, advisory groups, and the strategic planning process.

The EU Financial Regulation (Regulation 2018/1046) provides the overarching rules for EU budget implementation, including eligibility of costs, indirect cost rates (25% flat rate), audit provisions, and financial management requirements.

Associated Countries — non-EU countries that have signed association agreements — participate in Horizon Europe on similar terms to Member States. As of 2026, this includes countries such as Norway, Switzerland (partial association), the United Kingdom (fully associated since January 2024), Israel, Turkey, and a range of other countries under ongoing negotiations.

Practical Examples

Example 1: Cluster 5 RIA on Battery Technology. A consortium of 12 partners (four universities, three research centers, four companies, one non-profit) from eight countries responds to a Cluster 5 call topic on next-generation solid-state batteries. The total project budget is EUR 6.5 million over 48 months. All partners receive 100% funding rate as it is a RIA. The project combines fundamental materials science research (TRL 2-3) with prototype development (TRL 4-5) and produces 30 peer-reviewed publications, two patents, and a spin-off company.

Example 2: EIC Accelerator for a Health-Tech Startup. A Danish startup developing an AI-powered diagnostic platform applies to the EIC Accelerator. After passing the written evaluation and a face-to-face pitch to the jury, it receives blended finance: a EUR 2.5 million grant for technology development (TRL 5-7) and a EUR 5 million equity investment for scaling and market entry. The startup uses the EIC funding to complete clinical trials and obtain CE marking.

Example 3: MSCA Doctoral Network. A network of six universities and four industry partners from nine countries establishes a doctoral training programme in quantum computing. The network recruits 15 doctoral candidates who each spend part of their training at an academic institution and part in an industrial secondment. Each researcher receives a living allowance, mobility allowance, and research costs funded through MSCA unit costs. The project runs for 48 months.

Key Considerations for Suppliers

Identify the right instrument for your organization. If you are a commercial company, your primary pathways into Horizon Europe are: as a partner in a collaborative RIA or IA consortium (Pillar II), as an applicant to the EIC Accelerator (Pillar III, if you are an SME or startup), or as a host institution for an MSCA researcher. Understanding which instrument matches your technology readiness, organizational profile, and strategic goals is the essential first step.

Build consortium partnerships before the call opens. Successful Horizon Europe proposals typically involve established partnerships where roles and expertise are clearly defined. The 8-10 week proposal preparation period between call opening and deadline is too short to build a consortium from scratch. Attend European networking events, brokerage sessions, and use the Partner Search tool on the Funding & Tenders Portal to identify potential collaborators well in advance.

Master the proposal structure. Horizon Europe proposals follow a rigid template structure aligned with the three evaluation criteria. Each section has a page limit (typically 40 pages for RIA/IA). Successful proposals are concise, concrete, and clearly structured. Generic statements ("this project will have significant impact") score poorly; quantified commitments ("the technology will reduce battery charging time by 50%, with three industry partners committed to pilot testing") score well.

Understand the financial rules. Horizon Europe uses a simplified cost model: eligible direct costs (personnel, travel, equipment, subcontracting) plus a 25% flat rate for indirect costs. Personnel costs are the dominant cost category. Ensure your cost model is realistic, justified, and proportionate to the work to be performed. Over-budgeting triggers evaluator concerns about value for money; under-budgeting raises feasibility concerns.

Leverage open science requirements. Horizon Europe mandates immediate open access for all publications and FAIR data management. Rather than viewing these as compliance burdens, use them to increase your project's visibility, attract collaboration interest, and build your reputation as a responsible researcher or innovator.

Funding Programme — The broader category of EU programmes providing grants; Horizon Europe is the largest by budget.
Research and Innovation Action (RIA) — The most common grant type under Horizon Europe, funded at 100%.
Innovation Action (IA) — Grant type for closer-to-market activities, funded at 70% for companies.
ERC — European Research Council, funding frontier research under Pillar I.
MSCA — Marie Sklodowska-Curie Actions, funding researcher mobility under Pillar I.
EIC — European Innovation Council, funding breakthrough innovation under Pillar III.
Grant Agreement — The legal contract between the European Commission and the consortium after successful evaluation.

Frequently Asked Questions

Who can participate in Horizon Europe?

Any legal entity established in an EU Member State or an Associated Country can participate in most Horizon Europe calls. Entities from third countries (non-EU, non-associated) can also participate in many calls, though they typically must fund their own participation (no EU grant contribution) unless their country has a bilateral S&T agreement or the call explicitly allows third-country funding. The minimum consortium size for collaborative projects is three independent legal entities from three different Member States or Associated Countries. Individual grants (ERC, MSCA Postdoctoral Fellowships, EIC Accelerator) have their own specific eligibility rules.

What are the success rates in Horizon Europe?

Success rates vary significantly by instrument and call topic. Overall, Horizon Europe has an average success rate of approximately 15-17% of eligible proposals receiving funding. ERC grants are among the most competitive, with success rates around 10-15%. MSCA Postdoctoral Fellowships have success rates of 15-18%. Collaborative projects under Pillar II clusters typically see success rates of 12-20%, depending on the call budget and number of submissions. The EIC Accelerator has a very low success rate of approximately 5-8%. These rates reflect the high demand for EU research and innovation funding relative to available budgets.

How long does it take from proposal submission to project start?

The typical timeline is 8-12 months. After the call deadline, evaluation takes approximately 3-5 months (individual evaluation, consensus, panel ranking). Results are communicated to applicants, and successful proposals enter grant agreement preparation (GAP), which takes 2-3 months. The grant agreement is signed, and the project officially starts on the date specified in the agreement. The EU Funding & Tenders Portal provides a "time-to-grant" target of 8 months for Horizon Europe, though in practice some calls exceed this target.